Motion sensor Busch Jaeger Wächter 90° BT — ceiling/wall detector, 90° detection angle, white

Busch Jaeger Wächter 90° BT is a compact white motion sensor designed for ceiling or wall mounting. With a 90° detection angle and Bluetooth connectivity, this detector provides presence detection for automated lighting control and security triggers in residential and commercial interiors. The device combines discreet visual design with functionality suitable for corridors, staircases, small rooms and entryways where directed detection is required.

Advantages

The sensor offers a focused 90° detection field that reduces unwanted activations outside the monitored area. Bluetooth capability enables remote configuration and integration with compatible building control systems without running additional data cabling. Its design supports both ceiling and wall installation, allowing flexible placement to match room geometry. The white finish blends with most interior surfaces and minimizes visual impact.

Suitable for

• Corridors and hallways where directional detection is needed
• Staircases and landings to control lighting based on presence
• Small offices, storage rooms and utility spaces
• Entryways and vestibules for automated lighting or alarm triggers

Key specifications

• Detection angle: 90° for directional presence sensing
• Mounting type: ceiling or wall installation
• Color: white finish designed to integrate with interior surfaces
• Connectivity: Bluetooth for configuration and integration
• Application: indoor use for lighting control and security detection

How to use

Mount the detector on a ceiling or wall at the recommended height and orientation so the 90° detection field covers the intended area. After mechanical installation, use the Bluetooth interface to configure sensitivity, time delay and integration settings with compatible control devices or apps. Test the detection pattern and adjust the sensor angle or placement if necessary to avoid false triggers from adjacent zones. Follow local electrical codes when connecting to mains power and, if required, have a qualified electrician complete the final wiring.

Usage recommendations

For reliable operation, position the sensor to face the main approach route and avoid direct exposure to heating sources or large reflective surfaces. Use the Bluetooth setup to fine-tune sensitivity and time settings to match occupancy patterns, and periodically check the mounting and firmware compatibility with the control system.