The user can select one of the following 18 functions by pressing the button and display, and can set and save the function parameters, and also view the parameters of the current function. The time parameter setting is adjustable by 0.1 second at minimum, and the precision is better than 0.01 second. Instructions for setting up can be obtained from your dealer.

1-Channel 5V Relay Module With Optocoupler H/L Level for Arduino

SKU: 1423-152337588426-CHI