is very suitable for surface or semi - conceal fixing which is this case the base of bell can be sunk into the wall
is professionally designed for use in fire detection systems with central control equipment.
Dual Tech RK210PT Roiscok Motion PIR
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new lowcost, high-quality modular voice alarm system designed to simplify the provision of a BS5839 part 8 compliant voice alarm
360 Ceiling Mount Wire Pyronix Octopus EP