Easy to connect, only need to connect to the receiver then can telemetry module voltage, no need for flight controller or other external equipment and parameter settings.
Telemetering module voltage to avoid battery over-discharging.
Compatible transmitter AT10II/AT10/AT9S Pro/AT9S/AT9, easy to connect with R12DS, R9DS
PRM-01 telemetry module is compatible with 1-6S LiPo battery