Wide voltage supply (6 ~ 30V) supports -USB 5.0V supply, easy to ; The interface is clear and simple, , easy to understand, meet almost all your needs; There is a key stop function (STOP key), with reverse polarity protection, reverse polarity does not burn; Increase the mode, it enables, without any operation within 5 minutes, turn off the monitor automatically; any key to wake up; You can set a different OP, , LOP parameters, which are of each other, were saved; All setup parameters are saved automatically . Operating voltage: 6--30V support -USB 5.0V supply The trigger source: high trigger (3.0V-24V) signal with no common ground system to anti-jamming capability of the system (also -shorting common ground) Output capability: You can control the DC or AC within 30v 5A within 220v5A Quiescent Current: 20mA Operating Current: 50mA Timing range: 0.1 seconds -999 minutes continuously adjustable; with optocoupler isolation, enhanced anti-jamming capability, industrial grade circuit boards, set the parameters after failure memory forever. Special Note: The relay outputs are passive contact, uncharged output to control a line-off role. Colour:blue Material: ABS Size:10 x 6 x 3cm Package Contents: 1 x Module Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.