DC12V 18CH Relay Remote Switch Receiver Working Voltage : DC 12V Quiescent Current : less than8mA Working Temperature:-20'C- +70'C Receiving sensitivity:more than-105dBm Working Frequency: 315MHZ Output Type: Input DC12V Output 0V Switching Value use Relay NO COM NC Relay: 10A Relay have better load less than 5A Size:133mm*74mm*18mm Working Mode: 1--------18CH Toggle use " 1 " Button to Learn 2--------18CH Momentary use " 2" Button to Learn 3--------18CH Latched use "3" Button to Learn 4--------1-9CH Toggle,10-18CH Momentary use "4 "Buttonto Learn 5--------1CH Toggle , 2-18CH Momentary use " 5 " Button to Learn Learning Code: Input DC12V for the Receiver, Press the Learning Button on the Receiver ,LED Indicator ON ,Release it, then press the relative Transmitter Button, Receiver LED Indicator flash for 1 time, it mean learning is successful. Clearing Code: Input DC12V for the Receiver, press the learning button on the receiver and hold for about 8s until the Receiver LED indicator OFF, it mean the code have been cleared. the Receiver can keep 30 pcs different code transmitter Transmitter Working voltage: DC12V 23A Battery Working Current: less than 25mA Working Frequency:315MHZ Transmitting Power:18mW package included1 remote 1 receiver