UTC Fire & Security NX-470 SAW 4-Button Keychain Touchpad (60-659-95R) The small but powerful wireless keychain touchpad works like an electronic key. It can arm or disarm a Networx security system, activate the police or an auxiliary panic alarm, and turn lights on/off The keychain touchpad fits on a keychain, in a pocket, or in a purse, and is added to the system as either a sensor or a wireless touchpad. An LED light confirms RF transmission. Recessed buttons.