12v dc infinite cycle delay timing timer relay off switch lus module trigger

characteristics: this module uses mcu as the main chip. high precision timer. mcu watchdog circuit and special reset chip. stable and reliable work. specification: t1 (relay turn on delay time), t2 (relay turn off delay time) as soon as possible (jumper op3) 1. the power-on module, when activated the relay is switched on, delay t1, and the relay disconnected. 2. when activated on the delay process, reactivated, it will immediately interrupt the delay. cycle mode (jumper op4) 1. the po