SKU: 56632552589

RadioMaster ERS-RB01 Brushless Tachometer for ELRS PWM Receivers

Sale price$13.50 Regular price$15.00
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Description

RadioMaster ERS-RB01 Brushless Tachometer for ELRS PWM ReceiversThe ERS RB01 Brushless Tachometer measures RPM by tapping directly into any two wires of a brushless ESC output. The sensor captures precise speed data, sends it to a compatible ExpressLRS receiver via the CRSF interface, and relays the information back to your EdgeTX radio for real time monitoring. Ideal for any application requiring accurate RPM feedback. As part of the ERS sensor family, the ERS RB01 also supports pass through expansion, allowing

The ERS-RB01 Brushless Tachometer measures RPM by tapping directly into any two wires of a brushless ESC output. The sensor captures precise speed data, sends it to a compatible ExpressLRS receiver via the CRSF interface, and relays the information back to your EdgeTX radio for real-time monitoring. Ideal for any application requiring accurate RPM feedback.

As part of the ERS sensor family, the ERS-RB01 also supports pass-through expansion, allowing easy daisy-chaining with additional telemetry modules.

Features

  • Accurate RPM Monitoring: Captures real-time brushless speed with high precision.
  • ExpressLRS Integration: Sends RPM data directly to compatible ExpressLRS receivers via the CRSF interface.
  • Multi-Unit Support: Connect multiple ERS-RB01 sensors to monitor several units simultaneously.
  • Versatile Applications: Ideal for any application requiring accurate RPM feedback.
  • Compact & Lightweight: Easy to install without adding significant weight.
  • Plug-and-Play: Quick setup with minimal wiring for fast deployment.

Specifications

  • Item:ERS-RB01 RPM-BLDC Sensor
  • Operating voltage: 5–8.4V
  • Operating current: 10mA
  • Measurement method: Contact type
  • Support: Brushless
  • Motor pole pairs: LUA configurable
  • Range: 200–300, 000RPM
  • Accuracy: ±0.1%
  • Temperature range: –10 ℃ to +85 ℃
  • Size: 28 × 12 × 8mm
  • Weight: 4.8g

Using Sensors with Non-Plug-and-Play PWM ExpressLRS Receivers

Most 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.

Includes

  • 1 x  ERS-RB01 RPM-BLDC Sensor
  • 3 x Heat-Shrinkable Tube
  • 1 x Manual QR Code Card

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Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 56632552589

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The Maschmo
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★★★★★ 5
Works well
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i bought this for 3 reasons. 1. Privacy when changing so I don't have to lock dog out of room. 2. In case MIL comes over and wants to snoop. She won't be able to see my bedroom. 3. A nice backdrop to use when taking photos of the clothing I make. This is perfect for me. My only "complaint" is that it is not the most sturdy thing. I have to finagle it in a way that keeps it from falling over. But for the price, it can't be beat!
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Reviewed in the United States on March 18, 2026
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Sebastian Monte
Carnegie, US
★★★★★ 3
Cheap and unstable
Size: 4 Panel, Color: Black, Size: 4 Panel, Color: Black
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Reviewed in the United States on January 17, 2025
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Cuba, US
★★★★★ 5
Quality Product Easy to Use Awesome Privacy Great Price
Size: 4 Panel, Color: Black
I have Purchased 2 of these Room Dividers. One for my Nephew and One for my Son. They Both Say they are Sturdy and easy to setup and use. The Quality and Price are Great! Easy to setup already assembled and Very well made. I would recommend this Product
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Reviewed in the United States on August 1, 2025
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Placeholder
New York, US
★★★★★ 5
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Color: Off White, Size: 8 Panels, Color: Off White, Size: 8 Panels
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Reviewed in the United States on May 13, 2026
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Kim R.
Fort Morgan, US
★★★★★ 5
Very nice!
Very pretty! Lots of compliments.
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