Smart Home DC 12-72V 24V 30A Wireless Remote Control Switch RF 433Mhz Transmitter On Off Switch for Water Heaters Ceiling Lamp About Receiver: 1. Working voltage: DC9V-72V 2. Quiescent condition: Less than 8mA 3. Working temperature: -40 Degree +80 Degree 4. Receiver sensitivity: more than -105dBm 5. Working frequency: 433mhz 6. Output voltage: Input=output 8. Max load current: 30A 9. Size: 105 x51 x 30mm About Working way: Momentary: Relay: Press and hold -> On; Release -> Off. Toggle: Relay: Press -> On; Press same button again -> Off Latched: Relay: Press -> On; Press other button -> Off. Delay time : Press remote control button, the corresponding relay actuates and keeps working until the time out. About Learning and clearing Method: Input 12V for the Receiver , Momentary: press the Learning Button 1 time. the Led indicator flash 1 time, Then press transmitter, the Led indicator flash for 3 times, learning successfully. Toggle: press the Learning Button 2 time. the Led indicator flash 2 time, Then press transmitter, the Led indicator flash for 3 times, learning successfully. Latched: press the Learning Button 3 time. the Led indicator flash 3 time, Then press transmitter, the Led indicator flash for 3 times, learning successfully. Delay time (5S): press the Learning Button 4 time. the Led indicator flash 4 time, Then press transmitter, the Led indicator flash for 3 times, learning successfully. Delay time (10S): press the Learning Button 5 time. the Led indicator flash 5 time, Then press transmitter, the Led indicator flash for 3 times, learning successfully. Delay time (15S): press the Learning Button 6 time. the Led indicator flash 6 time, Then press transmitter, the Led indicator flash for 3 times, learning successfully. Clearning: Press the Learning button 8S . Until the receiver Led indicator flash for 3 times and OFF, it mean Clearing Code About Transmitter: 1.Buttons: 2 Buttons 3.Operating frequency :433MHz 4.Remote Distance: 20-70M 5.Operating Current: 13 mAh 6.Encode: EV1527 code 7.Size: 5.7 x 3.2 x 1.1cm _x000D_ _x000D_