Highlights This product suitable for electrical control circuit such as anti-theft alarm, remote control electric windows, signal control, industrial control, lifting equipment & so on. It uses fixed wireless code encoding, has no direction. The switch will not disturb each other. Because of the 12V remote control, we suggest that the power supply must more than DC 500m A. Each receiver board can withstand the maximum current of 10A. Best quality, your good choice! Working voltage: DC12 V Frequency: 315MHZContact capacity: ≤ 10A/250VAC; 10A/30VDCReceiver sensitivity: gt;-105d B Remote control distance:200 meters (Theoretical distance) Control channel: four normally open (normally closed) contacts Encoding type: fixed code; pad code Work Mode: self-locking / interlocking / jog Specifications Shipping Weight (kg): 0.0991 Dimension (cm): 9.2 x 7 x 2.5 Package Contents 1 4CH Wireless Remote Control Transmitter;1 Remote Controller.