... at the entrance. This remote wireless control is fit for car alarms, home alarms, panic buttons, garage door ... lock and unlock button at the same time for 2 seconds, the LED will flash and extinguish ... unlock button, continue to press the unlock button for 3 times but within 3 seconds. When ... delete the influence to the frequency by the metal part, for example, adjust 315Mhz to 312Mhz, 433Mhz to 431Mhz ...