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Sensors, Sirens & Doorbells / Presence Sensor

Does the radar presence sensor need neutral wire?

Short answer: Check wiring type; WBET-08 supports 3-wire/4-wire installation.
Intermediate Last reviewed: 2026-06-26

Explanation

The WBET-08 is an AC-powered controller and supports 3-wire/4-wire wiring depending on setup. Electrical installation should be handled by a qualified person.

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