{"product_id":"radiomaster-ers-rc01-cdi-gas-engine-tachometer-for-compatible-expresslrs-pwm-receivers","title":"[Radiomaster] ERS-RC01 - CDI Gas Engine Tachometer for Compatible ExpressLRS PWM Receivers","description":"\u003cp\u003eAs part of the ERS sensor family, the ERS-RC01 also supports pass-through expansion, allowing easy daisy-chaining with additional telemetry modules.\u003c\/p\u003e\n\n\u003cp\u003e\u003cimg loading=\"lazy\" alt=\"ERS-RC01 - CDI Gas Engine Tachometer for Compatible ExpressLRS PWM Receivers\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0701\/8066\/7584\/files\/1_288a2611-bcc0-4f33-b782-dd2529c62190.jpg?v=1769581793\"\u003e\u003c\/p\u003e\n\n\u003ch2\u003eLaunch Video\u003c\/h2\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\n\u003cp\u003e\u003ciframe height=\"759\" src=\"https:\/\/www.youtube.com\/embed\/ICXLDRpYn9I\" title=\"\" width=\"1349\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\n\u003cul\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eAccurate Engine RPM:\u003c\/strong\u003e Monitors gasoline engine speed in real time with precision.\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eExpressLRS Integration:\u003c\/strong\u003e Sends RPM data directly to compatible ExpressLRS receivers via the CRSF interface.\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eVersatile Applications:\u003c\/strong\u003e Ideal for any application requiring accurate RPM feedback.\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003eCompact \u0026amp; Lightweight:\u003c\/strong\u003e Easy to install without adding unnecessary weight.\u003c\/li\u003e\n\t\u003cli\u003e\n\u003cstrong\u003ePlug-and-Play:\u003c\/strong\u003e Simple connection to the CDI output for fast setup.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003ePlug and Play Compatible Receivers:\u003c\/strong\u003e\u003c\/h3\u003e\n\n\u003cul\u003e\n\t\u003cli\u003e\u003ca href=\"https:\/\/radiomasterrc.com\/products\/er6-2-4ghz-elrs-pwm-receiver\" rel=\"noopener\" target=\"_blank\"\u003eER6 2.4GHz ExpressLRSPWM Receiver\u003c\/a\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003ca href=\"https:\/\/radiomasterrc.com\/products\/er8-2-4ghz-elrs-pwm-receiver\" rel=\"noopener\" target=\"_blank\"\u003eER8 2.4GHz ExpressLRSPWM Receiver\u003c\/a\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003ca href=\"https:\/\/radiomasterrc.com\/products\/er8g-er8gv-2-4ghz-elrs-pwm-receiver\" rel=\"noopener\" target=\"_blank\"\u003eER8G \u0026amp; ER8GV ExpressLRS PWM Receiver\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eUsing Sensors with Non-Plug-and-Play PWM ExpressLRS Receivers:\u003c\/h3\u003e\n\n\u003cp\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\/p\u003e\n\n\u003cp\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). Available here: \u003ca href=\"https:\/\/radiomasterrc.com\/products\/ers-sensor-uart-to-dual-pwm-adapter\" rel=\"noopener\" target=\"_blank\"\u003ehttps:\/\/radiomasterrc.com\/products\/ers-sensor-uart-to-dual-pwm-adapter\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch3\u003eSensor Configuration \u0026amp; Telemetry Logging\u003c\/h3\u003e\n\n\u003cp\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\/p\u003e\n\n\u003cp\u003eAfter downloading, connect your radio to a Mac or PC in USB-SD mode.\u003c\/p\u003e\n\n\u003cp\u003eCopy the LUA files to:\u003cbr\u003e\n\/SCRIPTS\/TOOLS\/\u003c\/p\u003e\n\n\u003cp\u003e👉\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0701\/8066\/7584\/files\/SENSOR_LUA.zip?v=1769595857\" rel=\"noopener\" target=\"_blank\"\u003eDownload the RadioMaster ERS Sensors Configurator.lua\u003c\/a\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cimg loading=\"lazy\" alt=\"ERS-RC01 - CDI Gas Engine Tachometer for Compatible ExpressLRS PWM Receivers\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0701\/8066\/7584\/files\/RM_Sensor_Configurator_LUA_Main.jpg?v=1769742102\"\u003e\u003cimg loading=\"lazy\" alt=\"ERS-RC01 - CDI Gas Engine Tachometer for Compatible ExpressLRS PWM Receivers\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0701\/8066\/7584\/files\/RM_Sensor_Configurator_LUA_Sensor_view.jpg?v=1769742102\"\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cimg loading=\"lazy\" alt=\"ERS-RC01 - CDI Gas Engine Tachometer for Compatible ExpressLRS PWM Receivers\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0701\/8066\/7584\/files\/2_7b0375fa-6f1d-4159-b68f-985434897fe8.jpg?v=1769581793\"\u003e\u003cimg loading=\"lazy\" alt=\"ERS-RC01 - CDI Gas Engine Tachometer for Compatible ExpressLRS PWM Receivers\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0701\/8066\/7584\/files\/3_2366e714-cab7-49cc-a81a-dfc65e91919e.jpg?v=1769581793\"\u003e\u003cimg loading=\"lazy\" alt=\"ERS-RC01 - CDI Gas Engine Tachometer for Compatible ExpressLRS PWM Receivers\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0701\/8066\/7584\/files\/4_b5c6caac-43a4-40f7-b181-0b716d4cc4f6.jpg?v=1769581793\"\u003e\u003cimg loading=\"lazy\" alt=\"ERS-RC01 - CDI Gas Engine Tachometer for Compatible ExpressLRS PWM Receivers\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0701\/8066\/7584\/files\/8_410bb7f1-a77f-48eb-a8ac-730ef0ab0d54.jpg?v=1769581793\"\u003e\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eItem: ERS-RC01 RPM-CDI Sensor\u003c\/li\u003e\n\t\u003cli\u003eOperating voltage: 5–8.4V\u003c\/li\u003e\n\t\u003cli\u003eOperating current: 8mA\u003c\/li\u003e\n\t\u003cli\u003eConnector type: 3 pin\u003c\/li\u003e\n\t\u003cli\u003eSupported: CDI gasoline ignition\u003c\/li\u003e\n\t\u003cli\u003eRange: 200–300, 000RPM\u003c\/li\u003e\n\t\u003cli\u003eAccuracy: ±0.1%\u003c\/li\u003e\n\t\u003cli\u003eTemperature range: –10 ℃ to +85 ℃\u003c\/li\u003e\n\t\u003cli\u003eSize: 28 × 12 × 8mm\u003c\/li\u003e\n\t\u003cli\u003eWeight: 6.0g\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eDownload\u003c\/h2\u003e\n\n\u003cul\u003e\n\t\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0701\/8066\/7584\/files\/ERS-RC01-1.3.pdf?v=1769666378\" rel=\"noopener\" target=\"_blank\"\u003eERS-RC01 User Manual\u003c\/a\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0701\/8066\/7584\/files\/SENSOR_LUA_0d5632ec-5b85-42d7-971d-37dc2c97d7d4.zip?v=1780640563\" rel=\"noopener\" target=\"_blank\"\u003eRadioMaster ERS Sensors Configurator.lua\u003c\/a\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0701\/8066\/7584\/files\/RM_ERS_Sensor-v1.3-updata.bin?v=1780640563\" rel=\"noopener\" target=\"_blank\"\u003eERS Series Sensors Firmware V1.3\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSize\u003c\/h2\u003e\n\n\u003cp\u003e\u003cimg loading=\"lazy\" alt=\"ERS-RC01 - CDI Gas Engine Tachometer for Compatible ExpressLRS PWM Receivers\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0701\/8066\/7584\/files\/5_c9488ddd-1693-438c-a849-732282a8e361_480x480.jpg?v=1769582043\"\u003e\u003c\/p\u003e\n\n\u003ch2\u003eWeight\u003c\/h2\u003e\n\n\u003cp\u003e\u003cimg loading=\"lazy\" alt=\"ERS-RC01 - CDI Gas Engine Tachometer for Compatible ExpressLRS PWM Receivers\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0701\/8066\/7584\/files\/lQDPJwxghyZwzp_NA-jNAu6wjUA3ou6t1BIJUqBa-coPAA_750_1000_480x480.jpg?v=1769595476\"\u003e\u003c\/p\u003e\n\n\u003ch2\u003ePackage Includes\u003c\/h2\u003e\n\n\u003cul\u003e\n\t\u003cli\u003e1 * ERS-RC01 RPM-CDI Sensor\u003c\/li\u003e\n\t\u003cli\u003e3 * Heat-Shrinkable Tube\u003c\/li\u003e\n\t\u003cli\u003e1 * Manual QR Code Card\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cimg loading=\"lazy\" alt=\"ERS-RC01 - CDI Gas Engine Tachometer for Compatible ExpressLRS PWM Receivers\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0701\/8066\/7584\/files\/7_c2fef2ff-9838-42b7-ba73-36ca10086772.jpg?v=1769581794\"\u003e\u003c\/p\u003e\u003cdiv class=\"coolfly-line-support\" data-coolfly-line-cta=\"VM6gL2A\"\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003e⚠️ 下單前請先聯繫酷飛 LINE 官方帳號確認是否有現貨，確認後再下單。\u003c\/strong\u003e\u003cbr\u003e\u003ca href=\"https:\/\/lin.ee\/VM6gL2A\" target=\"_blank\" rel=\"noopener\"\u003e加入 LINE 官方帳號\u003c\/a\u003e（LINE ID：@729jvyax）\u003c\/p\u003e\n\u003c\/div\u003e","brand":"RadioMaster","offers":[{"title":"Default Title","offer_id":46034697945122,"sku":"RM0157.ERS-RC01","price":612.0,"currency_code":"TWD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0895\/5153\/6162\/files\/W1siZiIsIjI5MTU3L3Byb2R1Y3RzLzY4NjY0MTk2LzE3ODA4Mjg1NjZfYTYyODRhY2ZmNDMyMDY0YTE5MmYud2VicCJdLFsicCIsInRodW1iIiwiMTAyNHgxMDI0Il1d.jpg?v=1784626930","url":"https:\/\/coolfly.com.tw\/products\/radiomaster-ers-rc01-cdi-gas-engine-tachometer-for-compatible-expresslrs-pwm-receivers","provider":"酷飛多軸聯盟","version":"1.0","type":"link"}