Parts/Radio & control/Telemetry sensors/RadioMaster ERS-CV01 Precision Cell Voltage Telemetry Sensor (ExpressLRS/PWM Receivers)
RadioMaster ERS-CV01 Precision Cell Voltage Telemetry Sensor (ExpressLRS/PWM Receivers)
RadioMaster

RadioMaster ERS-CV01 Precision Cell Voltage Telemetry Sensor (ExpressLRS/PWM Receivers)

Part # RM-BR0157.ERS-CV01
Where to buy
$19.99
AMain Hobbies
Seen Oct 12, 2026
$19.99Buy
Prices are as last seen at the store; stock is not tracked.

About this part

Sensor Overview

The RadioMaster ERS-CV01 Precision Cell Voltage Telemetry Sensor is a compact and efficient solution for monitoring your battery health in real time. Designed for seamless integration with ExpressLRS systems, this sensor provides accurate per-cell voltage readings directly to your EdgeTX radio. Its simple plug-and-play design makes installation quick and hassle-free, even for complex setups.


About the ERS-CV01 Precision Cell Voltage Telemetry Sensor


Real Time Battery Voltage

The ERS-CV01 delivers precise, real-time monitoring of individual battery cell voltages, giving users critical insight into battery condition and performance. By connecting directly to the balance port, it ensures accurate readings without complicated wiring or setup. Its seamless integration with compatible ExpressLRS PWM receivers allows telemetry data to be transmitted and displayed instantly on EdgeTX radios. Additionally, the built-in pass-through capability makes it easy to expand your telemetry system by daisy-chaining multiple ERS sensors together as your needs grow.

Features:

  • Real-time per-cell voltage monitoring
  • Plug-and-play balance port connection
  • Pass-through expansion capability
  • ExpressLRS telemetry integration
  • Compact and lightweight design
  • EdgeTX radio compatibility

Includes:

  • (1) ERS-CV01 Precision Cell Voltage Telemetry Sensor

Specifications:

Voltage Range 5-8.4V DC
Dimensions (LxWxH) 1.71x0.98x0.28in (43.5x25x7mm)
Weight 0.23oz (6.5g)
CA Residents Prop 65 Warning WARNING: This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov Details...

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