Radiolink AT9S AT9 AT10 mini OSD telemetry module support APM PIX for RC drone helicopter, it transmits the data from the flight controller and shows the data of SPEED, RISE, THRO, VOLT, LATI, LONG, ALT, GPS, RSSI, MODE, YAW, ROLL, PITC, DIST on the transmitter's display screen. Description Please upgrade your AT9 firmware to V1.2.6 (OSD), AT10 firmware to V1.0.6(OSD) So far, this OSD telemetry module is compatible with PIX and APM OSD telemetry module can work with R9DS, R9D and R10D Connect one end of the OSD to R9DS or R9D or R10D, and the other end to PIX or APM Specification Brand Name: RadioLink Item Name: OSD telemetry module Item NO.: PRM-02 Dimension: 33*15mm Weight: 6g Note - No output if USB connect flight-controller and computer. - No VOLT information if use UBEC, have to offer electricity for flight-controller by volt ammeter. - Have to short-circuit the MUX-TXO/OSD of APM when connect PRM-02(OSD) to APM. Package list 1x OSD Telemetry Module 3x Connection cable