Features New serial port communication function, convenient to read and set parameters.Wide voltage (5-30V) operation, most equipment can be used, very convenient; All setting parameters are automatically saved after power off. With emergency stop key function (Stop key), with reverse connection protection, reverse connection will not burn; Different parameters OP, CL, LOP, CLL, CLH can be configured, these parameters are independent of each other and saved separately; Sleep mode, automatically turn off the screen without any operation within 3 minutes after turning it on; wake up by any key; The interface is clear and concise, powerful, easy to understand, and can almost meet all your needs; Features:  1.New serial port communication function, convenient to read and set parameters.Wide voltage (5-30V) operation, most equipment can be used, very convenient; 2.All setting parameters are automatically saved after power off.  With emergency stop key function (Stop key), with reverse connection protection, reverse connection will not burn; 3.Different parameters OP, CL, LOP, CLL, CLH can be configured, these parameters are independent of each other and saved separately; 4.Sleep mode, automatically turn off the screen without any operation within 3 minutes after turning it on; wake up by any key; 5.The interface is clear and concise, powerful, easy to understand, and can almost meet all your needs; Specifications:  Working voltage: DC 5V-30V support micro USB 5.0V power supply; Trigger signal source: 1. High edge trigger (DC 3.0V-24V) 2. Switch trigger 3. Serial communication trigger Output capacity: It can control equipment within 30V DC 5A or AC 220V 5A. Quiescent current: 20mA Working current: 50mA Life: more than 100,000 times Working temperature: -40-85°C Size: 79*43*27mm  Packing list:  Timing Delay Relay Module * 1   Package List 1 x Adapter 3 x Gaskets 1 x User Manual