12V RF Wireless Relay Remote Control Switch 10A Universal 4-Channel 433MHz Remote Control Relay Switch for Motor DIY Function Home Use More 2 Transmitters with 1 Receiver

About Receiver:Model No.: AK-RK04S-12-B1. Working voltage: DC12V2. Quiescent condition: Less than 6mA3. Working temperature: -40 Degree +80 Degree4. Receiver sensitivity: more than -105dBm5. Working frequency: 433mhz6. Output voltage: DC and AC is optional7. Output current: Less than 3A8. Max load current: 20A9. Size: 7.2 x 5.2 x 2.6cmAbout Working way:Working way changed by jumper on pinsMomentary: jumper doesn't connect any two pins. Relay: Press and hold -> On; Release -> Off. Toggle: jumper connects the pin T and pin S. Relay: Press -> On; Press same button again -> Off Latched: jumper connects the pin L and pin S. Relay: Press -> On; Press other button -> Off. About Learning and clearing Method: Learning: Press learning button, the indicator OFF, loosen finger, press any button of the remote transmitter, indicator flashes three times, meaning learning succeeds.Clearning: Hold press learning button about 8 seconds,,indicator from OFF to ON,then press remote ,Relay did not Respond ,it means clearning code successful. About Transmitter:Buttons: 4 Buttons Working Voltage:DC6V (2PCS CR2016)Operating frequency :433MHzRemote Distance: 20-50MOperating Current: 13 mAhEncode: Fixed code / EV1527 codeSize: 5.7 x 3.2 x 1.1cmPackage Includes2 x Transmitters1 x Receiver 1 x User Manual