Battery. The Hoyles 200 exitguard is an integral keypad operated door alarm. Use to deter the misuse of emergency exit doors and an ideal solution for the security of fire exit doors. When the door is opened an integral high powered sounder is activated to warn those close that security has been breached. Supplied with full fitting instructions, including wall fixings, batteries (for battery versions), door contact, 1 metre of cable and door warning label.. Key pad operation. Door contact supplied. Auto re-arm & reset delay 0-88 seconds. Optional “door open too long” delay 0-88 seconds