Ajax Systems DoorProtect Jeweller — Manufacturer product image

Door and window sensor

DoorProtect Jeweller

An indoor magnetic opening detector supplied with small and large magnets and an input for an additional wired sensor.

Reed-switch opening detection
Additional NC sensor input
Up to seven-year calculated battery life

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Ajax Systems DoorProtect Jeweller specifications
Brand	Ajax Systems
Model	DoorProtect Jeweller
Product type	Door and window sensor
Detection technology	Reed switch
Magnets included	Small and large
Magnet operating gap	Small: up to 1 cm; large: up to 2 cm
Additional detector input	Wired normally closed (NC)
Battery	1 × CR123A
Battery life	Up to 7 years, calculated
Ingress protection	IP50
Installation	Indoor
Chime	Supported with compatible Ajax siren
Radio protocol	Jeweller; regional frequency variant must match hub

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Specifications checked on 25 October 2026. Details refer to the linked manufacturer variant; confirm the supplied model, compatibility and included accessories with your quotation.