This is a camera + RF 4-way relay with RF433 function, which can be connected to your garage door, etc., and then the camera allows you to monitor your garage door in real time and open or close it remotely. It has inching and self-locking functions, and the mode can be switched by physical buttons. RF 4CH Inching/Self-locking Controller: 4-channel independent switches. Inching,Self-locking. Inching function(with delayed shutdown):Tap to turn ON viamobile app,automatically turns OFF after 1 second.. Self-locking function:Tap to turn ON via mobile app,tap again to turn OFF.(Primarily used for controlling circuit power supply.)Features drycontact input and output isolation.Output supports AC0-250V,max 10A,and DC0-30V,max 10A. 433MHz remote-controlled camera: Once connected to WiFi,the device can be controlled fromanywhere as long as your phone has internet access. Enable remote monitoring to keep an eye on your home fromanywhere. Supports device sharing:Share the device with other phones toenable multi-device control. 433MHz Romote Control With Camera Input:USB5V==1.5A Power consumption:155mA Viewing Angle:70 degrees Pixels:300,000 Transmitter frequency:433MHz Transmitter code:EV1527 Remote control dis:50M(unshielded) Operating temp:-10C-50C Working hum: Less than 90% Installation:Magnetic Mode:Inching,Self-locking Input:DC 7-32V/USB5V Max.current:10A/gang RF Frequency:433MHz Working temp:-20C-70C Installation:35mm DIN rail Colour:White & Black Material:ABS note:The color of the cable is random,no specified color is accepted Tips: The product may be updated constantly ,Due To Different Batches,The Actual Product May Have Slight Differences Or Color Differences,Which Does Not Affect Use Package Contents: 1 * RF 4CH Inching/self-locking controller 1 * Camera 1 * USB cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.