HeroNeo&reg; 12v Home Automation Delay Timer Control Switch Module Digital Display LED This product is a new digital LED countdown display 12v delay module module. It can be widely with various control switch places. Products can set the delay time, can press "set" buttons. After setting up, power-up setting value is previous setting delay time as we set last time (power-down memory function) LED digital display, normally open trigger delay 12V relay module, triggered by an external signal modules are high level trigger, counting time 0-999 seconds The wide range of products can be used in many fields