Skip to main content
ERS-BA01 - Precision Barometric Altitude Sensor for ExpressLRS Systems

ERS-BA01 - Precision Barometric Altitude Sensor for ExpressLRS Systems


  • Brand:RadioMaster
  • Product Code:RM0157.ERS-BA01
  • Availability:Availability on request

Prices are intentionally not displayed on the site. Contact RC-MODEL for current availability, technical fit, compatible accessories and a formal quote.
Quote quantity Choose the requested quantity, select options/variants if available, and add the item to one combined quote request.

These selections are sent with the SKU, model and quantity so we can check fit and availability.

Why choose ERS-BA01 - Precision Barometric Altitude Sensor for ExpressLRS Systems through RC-MODEL?

ERS-BA01 - Precision Barometric Altitude Sensor for ExpressLRS Systems is an RC product from RadioMaster. This page focuses on what an end customer needs: fit, use cases, specifications and imagery, without prices or outbound supplier detours.

Fit and use

ERS-BA01 - Precision Barometric Altitude Sensor for ExpressLRS Systems fits customers looking for RadioMaster items in RadioMaster Accessories, ERS Series Sensors, with RC-MODEL support for choosing the right configuration.

  • Relevant category: RadioMaster Accessories, ERS Series Sensors
  • Product identification for inquiry: model RM0157.ERS-BA01 / SKU RM0157.ERS-BA01

Key details

  • Weight: 3.5g
  • Operating voltage: 5-8.4V
  • Size: 23.5 × 13 × 7mm
  • Manufacturer: RadioMaster
  • Brand: RadioMaster
  • Product Code: RM0157.ERS-BA01

Before ordering

  • Confirm dimensions, power system, radio compatibility or material size before purchase.
  • Ask us to match required accessories, adhesives, hardware, batteries or replacement parts.
  • RC-MODEL helps with fit checks, availability, compatible accessories and a formal quote in Israel.

ERS-BA01 - Precision Barometric Altitude Sensor for ExpressLRS Systems is a RadioMaster product intended for RF protocol expansion, ExpressLRS links and long-range radio-control setups. This page presents the practical buying information in one place: compatibility, SKU, variants, radio protocol, use case and technical details.

The content is written for customer decision-making through RC-MODEL, without supplier prices or outbound purchase routes.

Key Advantages

  • Organized for RF protocol expansion, ExpressLRS links and long-range radio-control setups.
  • Part of the ERS telemetry sensor range.
  • RF/protocol context: ExpressLRS / ELRS, 2.4GHz, EdgeTX.
  • Includes local product imagery and structured specifications for customer comparison.

Core Specifications

  • Product Code: RM0157.ERS-BA01
  • Product Family: ERS telemetry sensor range
  • Protocol / RF: ExpressLRS / ELRS, 2.4GHz, EdgeTX
  • Weight: 3.5g
  • Real-Time Altitude Telemetry: Converts barometric pressure measurements into accurate relative altitude data for instant feedback on your radio.
  • Expansion-Ready Pass-Through: Includes an in-and-out port for daisy-chaining additional ERS sensors without rewiring your setup.
  • Seamless ExpressLRS Compatibility: Integrates easily with supported ExpressLRS PWM receivers via CRSF for fast and dependable data transmission.
  • Item: ERS-BA01 Barometer Sensor
  • Operating voltage: 5-8.4V
  • Operating current: 9mA
  • Altitude accuracy: ±0.5m
  • Temperature range: -10 ℃ to +85 ℃
  • Size: 23.5 × 13 × 7mm
Relevant RC Academy guides

Learn before you buy

These guides explain the setup, safety checks and accessory choices that usually matter for this product type.

Technical Specifications
Manufacturer RadioMaster
Brand RadioMaster
Product Code RM0157.ERS-BA01
All Variant SKUs RM0157.ERS-BA01
Product Type ERS Series Sensor
RadioMaster Collections Accessories, ERS Series Sensor
Product Family ERS telemetry sensor range
Application RF protocol expansion, ExpressLRS links and long-range radio-control setups
Item ERS-BA01 Barometer Sensor
Weight 3.5g
Protocol / RF ExpressLRS / ELRS, 2.4GHz, EdgeTX
Operating voltage 5-8.4V
Operating current 9mA
Temperature range -10 ℃ to +85 ℃
Size 23.5 × 13 × 7mm
Real-Time Altitude Telemetry Converts barometric pressure measurements into accurate relative altitude data for instant feedback on your radio.
Expansion-Ready Pass-Through Includes an in-and-out port for daisy-chaining additional ERS sensors without rewiring your setup.
Seamless ExpressLRS Compatibility Integrates easily with supported ExpressLRS PWM receivers via CRSF for fast and dependable data transmission.
Altitude accuracy ±0.5m

Tags: RadioMaster, RM0157.ERS-BA01, RadioMaster Accessories, ERS Series Sensors, RC radio