... 12.0Vdc 3. Low voltage alarm function four buttons remote control 315MHZ 433MHZ Battery model23A Operation ... (Crystal Oscillator )Transmission currentless 10mATransmission power10dBmButtom quantity4pcsEncoder(Optional)Fixed code: 2262, 2260 Learning code: EV1527,ITC Hopping ... control, RF transmitter and receiver modules, wireless receiver control switch, wireless detectors(PIR Motion sensor, door soor, ...