{"product_id":"radiomaster-ers-cu01-real-time-current-sensor-for-compatible-expresslrs-pwm-receivers","title":"RadioMaster ERS-CU01 - Real-Time Current Sensor for Compatible ExpressLRS PWM Receivers","description":"\u003cspan style=\"font-size:20px;\"\u003e\u003cstrong\u003eRadioMaster ERS-CU01 - Real-Time Current Sensor for Compatible ExpressLRS PWM Receivers\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003cbr\u003e\n\u003cspan style=\"font-size:20px;\"\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\n\u003cp style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255); margin: 0px 0px 25px; color: rgb(28, 29, 29); font-family: Arimo, sans-serif; font-size: 16px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: 0.4px; orphans: 2; text-align: left; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003eThe ERS-CU01 Current Sensor is a compact telemetry module for use with compatible ExpressLRS  receivers. Installed inline between the battery and ESC, it measures real-time operating current and voltage sending the data through the ExpressLRSreceiver for display on your EdgeTX radio. This provides instant insight into system load, efficiency, and power consumption across your entire powertrain.\u003c\/p\u003e\n\n\u003cp style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255); margin: 0px 0px 25px; color: rgb(28, 29, 29); font-family: Arimo, sans-serif; font-size: 16px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: 0.4px; orphans: 2; text-align: left; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003eAs part of the ERS sensor family, the ERS-CU01 also supports pass-through expansion, allowing easy daisy-chaining with additional telemetry modules. \u003c\/p\u003e\n\n\u003cp style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255); margin: 0px 0px 25px; color: rgb(28, 29, 29); font-family: Arimo, sans-serif; font-size: 16px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: 0.4px; orphans: 2; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; text-align: start;\"\u003e\u003cimg alt=\"ERS-CU01 - Real-Time Current Sensor for compatible ExpressLRS PWM Receivers\" cke-id=\"img32\" referrerpolicy=\"no-referrer\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0701\/8066\/7584\/files\/1_bd92a794-19aa-4b13-9467-e83ae356542c.jpg?v=1769578521\" style=\"box-sizing: border-box; border: 0px none; outline-color: rgb(0, 0, 255); max-width: 100%; margin: 0px; height: auto; float: none;\"\u003e\u003cbr\u003e\n\u003cbr\u003e\n\u003cspan style=\"font-size:18px;\"\u003e\u003cstrong\u003e\u003cspan style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255);\"\u003eFeatures\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cul style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255); margin: 0px 0px 25px 30px; padding: 0px; text-rendering: optimizelegibility; color: rgb(28, 29, 29); font-family: Arimo, sans-serif; font-size: 16px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: 0.4px; orphans: 2; text-align: left; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\n\t\u003cli style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255); margin-bottom: 0px;\"\u003e\n\u003cstrong style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255); font-weight: 700;\"\u003eReal-Time Current Monitoring:\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eView live current draw and voltage directly on your radio to better understand system performance and prevent overload conditions.\u003c\/li\u003e\n\t\u003cli style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255); margin-bottom: 0px;\"\u003e\n\u003cstrong style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255); font-weight: 700;\"\u003eInline Installation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSoldered between the battery and ESC for accurate, full-system current measurement.\u003c\/li\u003e\n\t\u003cli style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255); margin-bottom: 0px;\"\u003e\n\u003cstrong style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255); font-weight: 700;\"\u003eFuture-Ready Pass-Through:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIncludes in-and-out ports for daisy-chaining additional ERS sensors as your telemetry needs grow.\u003c\/li\u003e\n\t\u003cli style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255); margin-bottom: 0px;\"\u003e\n\u003cstrong style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255); font-weight: 700;\"\u003eSeamless ExpressLRS Integration:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDesigned to work smoothly with compatible ExpressLRS PWM receivers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255); margin-bottom: 0px;\"\u003e\u003cspan style=\"font-size:18px;\"\u003e\u003cstrong style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255); font-weight: 700;\"\u003e\u003cspan style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255);\"\u003ePlug and Play Compatible Receivers:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\n\u003cul style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255); margin: 0px 0px 25px 30px; padding: 0px; text-rendering: optimizelegibility; color: rgb(28, 29, 29); font-family: Arimo, sans-serif; font-size: 16px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: 0.4px; orphans: 2; text-align: left; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\n\t\u003cli style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255); margin-bottom: 0px;\"\u003e\u003cspan style=\"font-size:16px;\"\u003eER6 2.4GHz ExpressLRSPWM Receiver\u003c\/span\u003e\u003c\/li\u003e\n\t\u003cli style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255); margin-bottom: 0px;\"\u003e\u003cspan style=\"font-size:16px;\"\u003eER8 2.4GHz ExpressLRSPWM Receiver\u003c\/span\u003e\u003c\/li\u003e\n\t\u003cli style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255); margin-bottom: 0px;\"\u003e\u003cspan style=\"font-size:16px;\"\u003eER8G \u0026amp; ER8GV ExpressLRS PWM Receiver\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255); margin-bottom: 0px;\"\u003e\u003cspan style=\"font-size:18px;\"\u003e\u003cstrong\u003e\u003cspan style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255);\"\u003eUsing Sensors with Non-Plug-and-Play PWM ExpressLRS Receivers:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\n\u003cp style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255); margin: 0px 0px 25px; color: rgb(28, 29, 29); font-family: Arimo, sans-serif; font-size: 16px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: 0.4px; orphans: 2; text-align: left; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\u003cspan style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255);\"\u003eMost PWM ExpressLRS receivers are fully compatible; those without a dedicated UART port require reconfiguration to support external sensors (e.g., for telemetry). To enable this, reassign two PWM output pins as a serial UART—one for TX and one for RX—via the receiver's Web UI (accessed by putting the receiver into WiFi mode) or via the ExpressLRS LUA script. This enables sensor connectivity while preserving the remaining PWM channels for servos or ESCs.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255); margin: 0px 0px 25px; color: rgb(28, 29, 29); font-family: Arimo, sans-serif; font-size: 16px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: 0.4px; orphans: 2; text-align: left; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\u003cspan style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255);\"\u003eFor receivers that only provide standard servo pins, an optional adapter cable is available that converts the sensor’s UART connector to two standard servo plugs (TX and RX). \u003c\/span\u003e\u003cspan style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255);\"\u003e\u003cbr\u003e\n\u003cbr\u003e\n\u003cspan style=\"font-size:18px;\"\u003e\u003cstrong\u003eSensor Configuration \u0026amp; Telemetry Logging\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255); margin: 0px 0px 25px; color: rgb(28, 29, 29); font-family: Arimo, sans-serif; font-size: 16px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: 0.4px; orphans: 2; text-align: left; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\u003cspan style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255);\"\u003eTo configure this sensor and view telemetry on your EdgeTX radio, install the RadioMaster Sensor Configurator LUA. The LUA allows adjustment of sensor settings, enables proper telemetry display, and supports data logging for post-flight review.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255); margin: 0px 0px 25px; color: rgb(28, 29, 29); font-family: Arimo, sans-serif; font-size: 16px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: 0.4px; orphans: 2; text-align: left; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\u003cspan style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255);\"\u003eAfter downloading, connect your radio to a Mac or PC in USB-SD mode.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255); margin: 0px 0px 25px; color: rgb(28, 29, 29); font-family: Arimo, sans-serif; font-size: 16px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: 0.4px; orphans: 2; text-align: left; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\u003cspan style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255);\"\u003eCopy the LUA files to:\u003cbr style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255);\"\u003e\n\/SCRIPTS\/TOOLS\/\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255); margin: 0px 0px 25px; color: rgb(28, 29, 29); font-family: Arimo, sans-serif; font-size: 16px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: 0.4px; orphans: 2; text-align: left; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\u003cspan style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255);\"\u003e👉\u003ca href=\"http:\/\/cdn.shopify.com\/s\/files\/1\/0701\/8066\/7584\/files\/SENSOR_LUA_2026_7_31.zip?v=1785485572\" rel=\"noopener\" style=\"box-sizing: border-box; border-color: rgb(229, 231, 235) rgb(229, 231, 235) rgba(28, 29, 29, 0.15); outline-color: rgb(0, 0, 255); color: rgb(28, 29, 29); text-decoration: none; background: transparent; border-bottom-width: 1px; border-bottom-style: solid; position: relative; display: inline-block;\" target=\"_blank\"\u003eDownload the RadioMaster ERS Sensors Configurator.lua\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255); margin: 0px 0px 25px; color: rgb(28, 29, 29); font-family: Arimo, sans-serif; font-size: 16px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: 0.4px; orphans: 2; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; text-align: start;\"\u003e\u003c\/p\u003e\u003cdiv\u003e\u003cimg alt=\"ERS-RC01 - CDI Gas Engine Tachometer for Compatible ExpressLRS PWM Receivers\" cke-id=\"img33\" referrerpolicy=\"no-referrer\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0701\/8066\/7584\/files\/RM_Sensor_Configurator_LUA_Main.jpg?v=1769742102\" style=\"box-sizing: border-box; border: 0px none; outline-color: rgb(0, 0, 255); max-width: 100%; margin: 0px; height: auto; float: none;\"\u003e\u003c\/div\u003e\n\n\u003cp style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255); margin: 0px 0px 25px; color: rgb(28, 29, 29); font-family: Arimo, sans-serif; font-size: 16px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: 0.4px; orphans: 2; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; text-align: start;\"\u003e\u003c\/p\u003e\u003cdiv\u003e\u003cimg alt=\"ERS-RC01 - CDI Gas Engine Tachometer for Compatible ExpressLRS PWM Receivers\" cke-id=\"img34\" referrerpolicy=\"no-referrer\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0701\/8066\/7584\/files\/RM_Sensor_Configurator_LUA_Sensor_view.jpg?v=1769742102\" style=\"box-sizing: border-box; border: 0px none; outline-color: rgb(0, 0, 255); max-width: 100%; margin: 0px; height: auto; float: none;\"\u003e\u003c\/div\u003e\n\n\u003cp style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255); margin: 0px 0px 25px; color: rgb(28, 29, 29); font-family: Arimo, sans-serif; font-size: 16px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: 0.4px; orphans: 2; text-align: left; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\u003c\/p\u003e\u003cdiv\u003e\u003cimg alt=\"\" cke-id=\"img35\" referrerpolicy=\"no-referrer\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0701\/8066\/7584\/files\/RM_Sensor_Configurator_LUA_CU01.jpg?v=1769742103\" style=\"box-sizing: border-box; border: 0px none; outline-color: rgb(0, 0, 255); max-width: 100%; margin: 0px; height: auto;\"\u003e\u003c\/div\u003e\n\n\u003cp class=\"4ever-article\" style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255); margin: 0px 0px 25px; color: rgb(28, 29, 29); font-family: Arimo, sans-serif; font-size: 16px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: 0.4px; orphans: 2; text-align: left; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\u003cspan style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255); color: rgb(255, 42, 0);\"\u003e\u003cstrong style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255); font-weight: 700;\"\u003e*Battery Capacity must be set in mAh for telemetry\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255); color: rgb(255, 42, 0);\"\u003e\u003cstrong style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255); font-weight: 700;\"\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003carticle class=\"4ever-article\" style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255); display: block; color: rgb(28, 29, 29); font-family: Arimo, sans-serif; font-size: 16px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: 0.4px; orphans: 2; text-align: left; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\n\u003cp style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255); margin: 0px 0px 25px; text-align: start;\"\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cimg alt=\"ERS-CU01 - Real-Time Current Sensor for compatible ExpressLRS PWM Receivers\" cke-id=\"img36\" referrerpolicy=\"no-referrer\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0701\/8066\/7584\/files\/2_0a50c886-d541-4a85-a191-c99faadebfa8.jpg?v=1769578521\" style=\"box-sizing: border-box; border: 0px none; outline-color: rgb(0, 0, 255); max-width: 100%; margin: 0px; height: auto; float: none;\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cimg alt=\"ERS-CU01 - Real-Time Current Sensor for compatible ExpressLRS PWM Receivers\" cke-id=\"img37\" referrerpolicy=\"no-referrer\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0701\/8066\/7584\/files\/3_b0c49753-2a97-4684-af03-2e74e7a087eb.jpg?v=1769578521\" style=\"box-sizing: border-box; border: 0px none; outline-color: rgb(0, 0, 255); max-width: 100%; margin: 0px; height: auto; float: none;\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cimg alt=\"ERS-CU01 - Real-Time Current Sensor for compatible ExpressLRS PWM Receivers\" cke-id=\"img38\" referrerpolicy=\"no-referrer\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0701\/8066\/7584\/files\/4_77ba1cc8-d69a-40ec-ab1b-2a03e7454de7.jpg?v=1769578521\" style=\"box-sizing: border-box; border: 0px none; outline-color: rgb(0, 0, 255); max-width: 100%; margin: 0px; height: auto; float: none;\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cimg alt=\"ERS-CU01 - Real-Time Current Sensor for compatible ExpressLRS PWM Receivers\" cke-id=\"img39\" referrerpolicy=\"no-referrer\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0701\/8066\/7584\/files\/8_1dcf0480-4926-4104-9029-2636895967d1.jpg?v=1769578521\" style=\"box-sizing: border-box; border: 0px none; outline-color: rgb(0, 0, 255); max-width: 100%; margin: 0px; height: auto; float: none;\"\u003e\u003c\/div\u003e\n\u003cspan style=\"font-size:18px;\"\u003e\u003cstrong\u003e\u003cspan style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255);\"\u003eSpecifications\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\n\n\u003cul style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255); margin: 0px 0px 25px 30px; padding: 0px; text-rendering: optimizelegibility;\"\u003e\n\t\u003cli style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255); margin-bottom: 0px;\"\u003eItem: ERS-CU01 Current Sensor\u003c\/li\u003e\n\t\u003cli style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255); margin-bottom: 0px;\"\u003eOperating voltage: 5–8.4V\u003c\/li\u003e\n\t\u003cli style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255); margin-bottom: 0px;\"\u003eOperating current: 22mA\u003c\/li\u003e\n\t\u003cli style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255); margin-bottom: 0px;\"\u003eCurrent range: 1–150A\u003c\/li\u003e\n\t\u003cli style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255); margin-bottom: 0px;\"\u003eMax voltage: 70V\u003c\/li\u003e\n\t\u003cli style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255); margin-bottom: 0px;\"\u003eCurrent accuracy: ±0.5A\u003c\/li\u003e\n\t\u003cli style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255); margin-bottom: 0px;\"\u003eVoltage accuracy: ±0.1V\u003c\/li\u003e\n\t\u003cli style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255); margin-bottom: 0px;\"\u003eContinuous current: 100A\u003c\/li\u003e\n\t\u003cli style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255); margin-bottom: 0px;\"\u003eTemperature range: –10 ℃ to +85 ℃\u003c\/li\u003e\n\t\u003cli style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255); margin-bottom: 0px;\"\u003eSize: 30 × 25 × 10.5mm\u003c\/li\u003e\n\t\u003cli style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255); margin-bottom: 0px;\"\u003eWeight: 20.6g\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255); margin-bottom: 0px;\"\u003e\u003cspan style=\"font-size:18px;\"\u003e\u003cstrong\u003eDownload\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\n\u003cul style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255); margin: 0px 0px 25px 30px; padding: 0px; text-rendering: optimizelegibility;\"\u003e\n\t\u003cli style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255); margin-bottom: 0px;\"\u003e\u003ca href=\"http:\/\/cdn.shopify.com\/s\/files\/1\/0701\/8066\/7584\/files\/ERS-CU01-1.4.pdf?v=1769658273\" rel=\"noopener\" style=\"box-sizing: border-box; border-color: rgb(229, 231, 235) rgb(229, 231, 235) rgba(28, 29, 29, 0.15); outline-color: rgb(0, 0, 255); color: rgb(28, 29, 29); text-decoration: none; background: transparent; border-bottom-width: 1px; border-bottom-style: solid; position: relative; display: inline-block;\" target=\"_blank\"\u003eERS-CU01 User Manual\u003c\/a\u003e\u003c\/li\u003e\n\t\u003cli style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255); margin-bottom: 0px;\"\u003e\u003ca href=\"http:\/\/cdn.shopify.com\/s\/files\/1\/0701\/8066\/7584\/files\/SENSOR_LUA_2026_7_31.zip?v=1785485572\" rel=\"noopener\" style=\"box-sizing: border-box; border-color: rgb(229, 231, 235) rgb(229, 231, 235) rgba(28, 29, 29, 0.15); outline-color: rgb(0, 0, 255); color: rgb(28, 29, 29); text-decoration: none; background: transparent; border-bottom-width: 1px; border-bottom-style: solid; position: relative; display: inline-block;\" target=\"_blank\"\u003eRadioMaster ERS Sensors Configurator.lua\u003c\/a\u003e\u003c\/li\u003e\n\t\u003cli style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255); margin-bottom: 0px;\"\u003e\u003ca href=\"http:\/\/cdn.shopify.com\/s\/files\/1\/0701\/8066\/7584\/files\/RM_ERS_Sensor-v1.3-updata.bin?v=1780640563\" rel=\"noopener\" style=\"box-sizing: border-box; border-color: rgb(229, 231, 235) rgb(229, 231, 235) rgba(28, 29, 29, 0.15); outline-color: rgb(0, 0, 255); color: rgb(28, 29, 29); text-decoration: none; background: transparent; border-bottom-width: 1px; border-bottom-style: solid; position: relative; display: inline-block;\" target=\"_blank\"\u003eERS Series Sensors Firmware V1.3\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255); margin-bottom: 0px;\"\u003e\u003cspan style=\"font-size:18px;\"\u003e\u003cstrong\u003e\u003cspan style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255);\"\u003eSize\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\n\u003cp style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255); margin: 0px 0px 25px; text-align: start;\"\u003e\u003cimg alt=\"ERS-CU01 - Real-Time Current Sensor for compatible ExpressLRS PWM Receivers\" cke-id=\"img40\" referrerpolicy=\"no-referrer\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0701\/8066\/7584\/files\/5_771cb3a2-3d28-44de-81ba-0ffd2c352816_480x480.png?v=1769579420\" style=\"box-sizing: border-box; border: 0px none; outline-color: rgb(0, 0, 255); max-width: 100%; margin: 0px; height: auto; float: none;\"\u003e\u003cbr\u003e\n\u003cspan style=\"font-size:18px;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cdiv style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255); text-align: start;\"\u003e\n\u003cp style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255); margin: 0px 0px 25px;\"\u003e\u003cimg alt=\"ERS-CU01 - Real-Time Current Sensor for compatible ExpressLRS PWM Receivers\" cke-id=\"img41\" referrerpolicy=\"no-referrer\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0701\/8066\/7584\/files\/6_908be9f0-b240-4001-b6fe-91a7784aa68b.jpg?v=1769579390\" style=\"box-sizing: border-box; border: 0px none; outline-color: rgb(0, 0, 255); max-width: 100%; margin: 0px; height: auto; float: none;\"\u003e\u003cbr\u003e\n\u003cspan style=\"font-size:18px;\"\u003e\u003cstrong\u003ePackage Includes\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cul style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255); margin: 0px 0px 25px 30px; padding: 0px; text-rendering: optimizelegibility;\"\u003e\n\t\u003cli style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255); margin-bottom: 0px;\"\u003e1 * ERS-CU01 Current Sensor\u003c\/li\u003e\n\t\u003cli style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255); margin-bottom: 0px;\"\u003e3 * Heat-Shrinkable Tube\u003c\/li\u003e\n\t\u003cli style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255); margin-bottom: 0px;\"\u003e1 * Manual QR Code Card\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp style=\"box-sizing: border-box; border-color: rgb(229, 231, 235); outline-color: rgb(0, 0, 255); margin: 0px;\"\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cimg alt=\"ERS-CU01 - Real-Time Current Sensor for compatible ExpressLRS PWM Receivers\" cke-id=\"img42\" referrerpolicy=\"no-referrer\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0701\/8066\/7584\/files\/7_86e2a6dc-693d-4f03-b4bc-719994380eab.jpg?v=1769578521\" style=\"box-sizing: border-box; border: 0px none; outline-color: rgb(0, 0, 255); max-width: 100%; margin: 0px; height: auto; float: none;\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/article\u003e\n","brand":"RC FPV Drone Store","offers":[{"title":"Default Title","offer_id":49070752890998,"sku":"ACZ2214","price":22.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/2301\/9894\/files\/181a28e0f899ed97f08c372e6f2563eb.jpg?v=1792417294","url":"https:\/\/rcfpvdrone.com\/zh\/products\/radiomaster-ers-cu01-real-time-current-sensor-for-compatible-expresslrs-pwm-receivers","provider":"RC FPV Drone Store","version":"1.0","type":"link"}