Radiomaster ERS BA01 Precision Plug and Play Barometric Altitude Sensor for Compatible ExpressLRS SystemsDescription The ERS BA01 Barometer Sensor provides accurate real time altitude data for compatible ExpressLRS receivers By capturing barometric pressure and converting it into precise relative altitude information the ERS BA01 delivers reliable telemetry back to your EdgeTX radio This sensor provides clear responsive altitude monitoring As part of the ERS sensor family the ERS BA01 also supports pass through expansion allowing easy daisy chaining with additional telemetry modules Feature 1 Real Time Altitude Telemetry Converts barometric pressure measurements into accurate relative altitude data for instant feedback on your radio 2 Expansion Ready Pass Through Includes an in n out port for daisy chaining additional ERS sensors without rewiring your setup 3 Seamless ExpressLRS Compatibility Integrates easily with supported ExpressLRS PWM receivers via CRSF for fast and dependable data transmission Plug and Play Compatible Receivers ER6 2 4GHz ExpressLRSPWM ReceiverER8 2 4GHz ExpressLRSPWM ReceiverER8GER8GV ExpressLRS PWM ReceiverSpecification Brand RadiomasterItem ERS BA01 Barometer SensorOperating voltage 5 8 4VOperating current 9mAAltitude accuracy ±0 5mTemperature range 10 ℃ to 85 ℃Size 23 5 13 7mmWeight 3 5gPackage Included 1 x ERS BA01 Precision Barometric Altitude Sensor3 x Heat Shrinkable Tube1 x Manual QR Code Card