Features 1、It is a timer relay countdown off module with high accuracy, stable and reliable performance 2、Trigger to connect, and will disconnect after delay time; if trigger during delay time, it will disconnect immediately 3、Normally the module will start to work when triggered, if you need module to work immediately after power on, connect 2 terminals of trigger 4、There is a wide time range, the delay time is adjustable from 1 second to 99 seconds, or 1 minute to 99 minutes; use a jumper to select second/minute 5、Designed with a LED display that will show the delay time Specification Features: It is a timer relay countdown off module with high accuracy, stable and reliable performance. Trigger to connect, and will disconnect after delay time; if trigger during delay time, it will disconnect immediately. Normally the module will start to work when triggered, if you need module to work immediately after power on, connect 2 terminals of trigger. There is a wide time range, the delay time is adjustable from 1 second to 99 seconds, or 1 minute to 99 minutes; use a jumper to select second/minute. Designed with a LED display that will show the delay time. Specifications: Delay Time: 1~99Sec./1~99Min.(adjustable) Size: 70 x 40 x 18mm / 2.75 x 1.57 x 0.7" Quantity: 1 Package Includes: 1 x Timer Relay Module Package List 1 x Timer Relay Module