Metering Devices -Relay Module Board Highlights Generic Brand Relay Module Board Description: Working voltage 11-12.5V, each maximum output power of 800W or less, can power the most small household appliances and electrical appliances; To achieve home appliance switch wireless control and weak power function control; To replace the manual switch problem, product applications are wide, wiring is simple and convenient; The receiving distance, you can wear walls, the remote control can own the welding code, the coding can realize individual control, you can also realize one to many control Suitable for household appliances: switch, lamp switch, light control motor, small pump control, wireless control product switch, smart switch and other electronic equipment specification: Material: FR-4 epoxy fiberglass board Color: multicolor Size: approx. 62x53x22mm / 2.44x2.09x0.87inch Working voltage: 11-12.5V (input) VCC: connect positive power supply GND: connect negative power supply Working current: about 140mA (relay off state) Static operating current: about 8mA (relay release state) Module type: Road type 4 12V 433M wireless switch module learning (4 ways can learn independently) Receiving distance: between 30 and 1000 meters (through the wall) Working mode: self-locking, jogging, locking three working modules, customer free set Working instructions: D5 (power indicator), D1-D4 (relay switch indicator), D6 ( learning indicator) Output mode: the output is a passive output, the module is mainly used as a switch; often open, for common, often closed (Note: normally closed and common state is connected, the switch is often closed with open and common interfaces) Package includes: 1 piece relay module board 1 piece remote control Note: After power on, press and hold the learning button on the top of the receiver, the learning light D6 flashes 1, then release the button, then press and hold the learning button on the remote control. Button B); when flash 3 is released, you can learn the third way (C key); when you press the learning button, you learn the second sense (button B). When flash 4 is on, you can learn the fourth sense (D button). Pls allow 1-3mm error due to manual measurement difference.