Ruistart
Foldable GPS Antenna Stand & Mounting Bracket for DIY Quadcopter
Price on request
MOQ 2 pcs · samples available
RadioMaster · RC Cars, Tools & Parts
Radiomaster ERS-CV01 Cell Voltage Sensor
SKU RS-289 HTS 8806.99 Origin Shenzhen, CN Updated Oct 2026
Price on request
Wholesale pricing is quoted per order. Send the quantity and destination and the trade desk replies within six working hours, EXW Shenzhen.
- MOQ 2 pc — samples welcome
- Sourced equivalent available for private label
- Bench-tested before dispatch
- 12-month warranty, RMA support
- Ships in 24-48h from stock
- Trade desk replies in 6h
About this product
The RadioMaster ERS-CV01 Cell Voltage Sensor is a compact, plug-and-play telemetry module for use with compatible ExpressLRS receivers. Just connect the sensor to your battery’s balance port, and it will monitor the real-time voltage of each cell, transmit the data via the ExpressLRS receiver, and display it directly on your EdgeTX radio.
VIDEO: RadioMaster ERS Series Sensor | Telemetry Module for Compatible ExpressLRS PWM Receivers
Features
- Captures real-time individual cell voltages for improved battery safety and performance
- Easily connects to the battery’s balance port for accurate cell-level voltage readings
- Supports daisy-chain expansion for additional ERS telemetry sensors as your setup grows
- Seamless ExpressLRS integration
- Compact & Lightweight
Cell Voltage Display, Configuration & Logging
The ERS-CV01 Cell Voltage Sensor requires both the CellsValues LUA and the RadioMaster Sensor Configurator LUA to function correctly. Together, these LUAs enable per-cell voltage display, sensor configuration, and telemetry logging for post-flight review on EdgeTX radios.
Specifications
- Item: ERS-CV01 Cell Voltage Sensor
- Operating voltage (serial port): 5–8.4V
- Operating current (serial): 8mA
- Balance port current (8S): 2mA
- Supported cells: 2–8S
- Battery types: LiPo, LiHV, LiFe, LiIon
- Voltage accuracy: ±0.01V
- Temperature range: –10 ℃ to +85 ℃
- Size: 43.5 × 25 × 7mm
- Weight: 6.5g
Links
Includes
- 1x ERS-CV01 Cell Voltage Sensor
- 3x Heat-Shrinkable Tube
- 1x Manual QR Code Card
Key specifications
| Brand | RadioMaster |
|---|---|
| Department | RC Cars, Tools & Parts |
| Minimum order | 2 pcs (samples available) |
| Lead time | Ships in 24-48h from stock |
Packing and freight data
| Packaging | Qty per carton | Carton (cm) | Gross weight | CBM |
|---|---|---|---|---|
| Retail box | 3 | 18 × 12 × 6 | 0.42 kg | 0.0013 |
| Inner carton | 18 | 38 × 26 × 22 | 4.6 kg | 0.0217 |
| Export carton | 178 | 58 × 42 × 38 | 21.4 kg | 0.0926 |
Placeholder packing data — confirm with your supplier before quoting freight. CBM is per export carton.
Wholesale questions
What is the minimum order quantity for Radiomaster ERS-CV01 Cell Voltage Sensor?
Stock supply starts at 10 pc. The 10× and 50× quantity breaks are already applied in the price table above.
Can you print our brand on this product?
Not on this specific SKU. For Radiomaster ERS-CV01 Cell Voltage Sensor we supply as-is, but if you need a private-label version we will usually find an equivalent part in the same family that can be branded — send us the requirement.
How is this shipped and how long does it take?
Air express (DHL / FedEx / UPS) is typically 4-7 working days door to door. Larger orders can move by sea or rail with DDP terms so the landed cost is fixed before dispatch.
Is it tested before dispatch?
Every unit is bench-tested and inspected before packing, and we can supply CE / FCC / RoHS documentation and a QC report with the shipment.
More from RC Cars, Tools & Parts
Buyers of this item usually also quote these SKUs.
Ruistart
30-Set Servo Plug & Crimp Pin Kit (Male/Female)
Price on request
MOQ 2 pcs · samples available
Ruistart
180-Piece M2 Nylon Standoff Kit for Flight Controller
Price on request
MOQ 3 pcs · samples available
DJI
F450/F550 High Profile Landing Gear Legs (DJI Style)
Price on request
MOQ 5 pcs · samples available
Get bulk pricing on your BOM in 6 hours
Send us your parts list — we return a landed-cost quote with tier pricing, lead time and shipping options. No sign-up needed, just an email address to reply to.
- Tier pricing from 1 pc to 10,000+ pcs, valid 30 days
- Mixed-SKU containers and consolidated shipping
- OEM logo, custom firmware, retail packaging
- Sample order first, scale after you test
Prefer to talk? Message the trade desk on WhatsApp.