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: 4 Input Power: DC12V Standby Current: ≤6mA Output Current: ≤10A RF Frequency: 433MHz Output Power: DC/AC Optional RF working mode: superheterodyne reception Coded System: Learning Code (1527 Chip) ; Fixed Code Receive sensitivity: ≥ -105dbm Decoding mode: MCU software decoding Remote control storage: up to 16 PCS Working mode: Momentary, Toggle, Latching Wiring type: fixed terminal Output Terminal: NO , NC , COM Receiver 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: 433MHz Range: 50m (open area) Battery: 2*CR2016 3V (included) Working Current: 10mA Shock Resistance: 270K/330K Quantity: 1PCS Remote Control Size(Each): 5.8*3.2*1.2cm Package Information: Package Size: Approx. 17 * 11 * 5cm / 6.7 * 4.3 * 2in Package Weight: Approx. 117g / 4.1oz Package List: 1* Receiver Board 1* Fuse Box 2* Remote Control