Battery voltage telemetry sensor: PRM-01
This telemetry sensor for EXT voltage,is applicable to AT10 and AT9.
Function: Feedback VOLT information and will vibaration alarm when low voltage as the same function of BB.
Size: 4*2.7*1.3cm
Weight: 11g (including connector)
RadioLink AT10 + PRM-01 Telemetry Module : https://www.youtube.com/watch?v=uWSxWrYUwAg