Features:*Very convenient to use, simple wiring diagram connection way.*Support remote control up to 16 pieces. It can connect to the electronic control lock, intercom doorbell, garage door, light, electric curtain, household appliances, motor control, etc. So that it can remote unlock the door, close the light, open or close the curtain,etc.*The Remote Control four buttons could respectively copy four different types of chips, that is a remote control can operate four different types of facilities.*The working mode can be changed by yourself: you can switch to momentary, toggle, latching three modes as you need.*Learning pair code: it can work with any remote control with the same frequency, so you needn't worry about losing remote control any more. (If the remote control is lost, buy one and pair with the PCB board is OK.)Specifications:Receiver:Channels: 4Input Power: DC12VStandby Current: 6mAOutput Current: 10ARF Frequency: 433MHzOutput Power: DC/AC OptionalRF working mode: superheterodyne receptionCoded System: Learning Code (1527 Chip) ; Fixed CodeReceive sensitivity: -105dbmDecoding mode: MCU software decodingRemote control storage: up to 16 PCSWorking mode: Momentary, Toggle, LatchingWiring type: fixed terminalOutput Terminal: NO , NC , COMReceiver Board Size: Approx. 7.5 x 5.4 x 2.1cm / (3 x 2.1 x 0.83)Fuse Box Size: Approx. 7.5 x 5.4 x 2.7cm / (3 x 2.1 x 1.1)Remote Control:Frequency: 433MHzRange: 50m (open area)Battery: 2*CR2016 3V (included)Working Current: 10mAShock Resistance: 270K/330KQuantity: 1PCSRemote Control Size(Each): 5.8*3.2*1.2cmPackage Information:Package Size: Approx. 17 * 11 * 5cm / 6.7 * 4.3 * 2inPackage Weight: Approx. 117g / 4.1ozPackage List:1* Receiver Board1* Fuse Box2* Remote Control