Orca Magnetic Quick Mount for Smoke Alarms SKU: 236733 MODEL: 140010 Error. try again later You've successfully joined the club $ 8 .66 each Mitre 10 MAvailable at Mitre 10 MEGA stores. Variants Includes 1 x adhesive surface plate, 1 x magnetic alarm plate. Features and benefits No drilling required. Fits on most smoke detectors. Minimum detector diameter 8cm. Ideal for caravans, boats, or anywhere you don’t want holes drilled. Quick and easy assembly.