Features: brand new and high quality The industrial control four-way controller adopts communication mode controller, and has the characteristics of strong data transmission stability and high sensitivity to receive. Data transmission rate is high, not by motor interference, etc., the program uses rolling code encryption processing, confidentiality is strong, security performance is more reliable, product output power, mobile four-key remote control can be used with industrial control four-way supporting, can be applied to the control of high-power products. Press the code for key of the controller once and the LED indicator of the controller lights on. Then press the button A of the four-key mobile remote control to send A valid signal. When the controller receives the signal, the LED indicator blinks, indicating the success of code learning. The working mode is A and B in self-lock mode, and C and D in point mode. Self-lock mode: Press the code for key of the controller once and the LED indicator of the controller turns on. Then press the B button of the four-key mobile remote control to send a valid signal. After the controller receives the signal, the LED indicator blinks, indicating that the code learning is successful. The working mode is A.B.C.D, and all the keys are in self-lock mode. Interlock mode: Press the code for key of the controller once and the LED indicator of the controller turns on. Then press the C button on the four-key remote control of mobile phone to send effective signal. After the controller receives the signal, the LED indicator blinks, indicating that the learning code is successful. The working mode is A.B.C.D, and the keys are in interlock mode. Specifications: Material:Plastic,Metal Size:Approx.14.5x9.2x4cm/5.71x3.62x1.57in Type:315 MHz,433 MHz Net Weight:254g Package Includes: 1x Copy Remote Control note: Please allow 1mm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.