1,Large Screen: This module has a large screen that you can easily monitor the running statues of it, convenient and time saving. 2,Reverse Connection Protection: There is a key stop function (STOPKey) with reverse connection protection, and the reverse connection will not be burned. 3,Sleep Mode: If there is no action for 5 minutes, the sleep mode will be turned on and the display will be turned off automatically. Then you can wake up with one key. 4,Wide Measuring Range: The measure range of this module is 0 to 999 seconds (S) 0 to 999 minutes (min) 0 to 999 hours (h). 5,ABS Material: Made of premium ABS material, this time relay module is scratch resistant, wear resistant, strong and sturdy, ensuring a long life span. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.