... , reliable and strong anti-interference, The range of Time lag is widely, set up is correct and convenient, no mechanical wear, long ... , this screen for the controller, the internal relay pull-in time Set the length (in seconds) to delay preset. Can "shift" key, so ... current flash bit left one, the first one → Page 2 → Page 2 → Page 4 → Page 1 cycle, but also can "to a few" key ...