Dereve manufacture a range of wind up and mechanical Door Bells , that require no batteries, wiring or electricity. They simply fit to the inside of your front door and give a life-time of maintenance free, reliable service.
Each is presented on an attractive blister pack card, together with all fixing Screws and instructions. Clockwork action needing only occasional winding of dome
Please note that these product properties are not a replacement for the manufacturer's literature and it is always recommended that Dereve (Flow Controls) is consulted before specifying.
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| Uniclass (?) | Pr_30_36 Hardware products | |