EX104. The Hoyles 100 exitguard is a keyswitch 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, door contact, 1 metre of cable and door warning label.. Key switch operation. Door contact supplied. Auto re-arm & reset delay (variable). Optional “door open too long” delay 15 seconds