Fangrui Product Details 1. Wide Time Range: Digital Cycle Timer Relay Module, Time Range From 1 Second To 999 Hours 2. Dual Led Display: Red And Blue Dual Led Display Module And Touch Buttons, Easy To Set The Delay Time And Working Mode. 3. Support Multiple Working Modes, Including Timer, Cycle And Period Working Modes, Meet Most Of Your Needs. 4. Direct Output, Input = Output 5. Installation Size: 77x39.3mm, Embedded Installation, Suitable For A Variety Of Application Scenarios Output Type: Active Output, Output , Output Voltage = Operating Voltage Relay Type: 1 Way Normally Open Relay Timing Unit: Second/minute/hour Timing Range: 1-999, Minimum Unit Of Measurement 1 Second Single Time Delay On/off: Support Infinite Cycle On/off: Support On-off Priority Adjustment: Support Automatic Trigger: Support Power Failure Saving: Support Power Failure Saving Setting Reset And Restart: Support Unit Synchronisation: Synchronised, Only 3 Combinations Of Timing Units Note: Due To Different Production Batches, There May Be Slight Differenc Easy To Clean And Maintain