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Addressable Base – B501AP

This System Sensor base is designed for use with all 500, 200, 200+ and 200 Advanced intelligent ranges of sensors and their variants. The standard B501AP is white, an IV suffix indicates the base is ivory in colour, a BK suffix for black.

The B501AP Base is designed to accept S200 detectors and has a tamper resistant feature which can be enabled by breaking off a plastic tab. When enabled the detector cannot be removed without a suitable tool. The base can be labelled with a break-off address tag. Available in white, ivory and black colours.


• Width: 102mm
• Weight: 39 g
• Height: 22.5 mm
• Mounting to mounting boxes with a hole spacing of 60mm. Screw size max diameter 4 mm (head diameter 8 mm).
• -30°C to +60°C operating temperature range
• 10% to 93% Relative Operating Humidity
• Compatible with all S200 addressable sensors