Motion detector Sonoff SNZB-03P Wall, detection angle 110°, range 6 m, CR2477 battery, plastic housing

Sonoff SNZB-03P Wall is a battery-powered Zigbee 3.0 motion detector designed for wall mounting. With a 110° detection angle and up to 6 m detection distance, the compact plastic housing (44×44×65 mm) contains a CR2477 cell that can provide up to three years of operation. The sensor detects presence and movement for home automation, security scenes and energy-saving applications and is certified to CE, FCC, ISED and RoHS standards.

Advantages

The detector provides fast detection and response, automatically turning lights on within about 5 seconds when motion is detected and switching them off after movement stops to reduce energy use. Its Zigbee 3.0 compatibility enables integration with a range of hubs and local scene execution, so automations continue to work even if Wi‑Fi is down. Built-in ambient light assessment lets the device decide whether lighting should be triggered based on current brightness. The unit supports long battery life from a single CR2477 cell and operates reliably across a wide temperature range.

Suitable for

• Automatic lighting control in hallways, stairwells and entryways
• Presence detection for security scenes and alarm triggering
• Energy-saving automation in rooms with intermittent occupancy
• Integration into Zigbee-based smart home systems and local scenes

Key specifications

• Detection angle: 110°
• Detection distance: up to 6 m
• Mounting type: wall mount
• Communication protocol: Zigbee 3.0 compatible
• Power source: CR2477 replaceable battery
• Housing material and dimensions: plastic, 44 × 44 × 65 mm
• Operating temperature range: -10 to 60 °C
• Fast detection latency: about 5 seconds to trigger connected lights

How to use

Mount the Sonoff SNZB-03P on a wall at the recommended height and angle so its 110° sensor field covers the desired area. Install the CR2477 battery and pair the device to a Zigbee 3.0 hub using the hub’s pairing procedure or the eWeLink app where applicable. Configure scenes and automation rules to trigger lights, alarms or other Zigbee devices based on motion and ambient light conditions. Place the sensor away from direct heat sources and avoid aiming it toward windows where sunlight might cause false triggers.

Recommendations

For reliable detection, install the sensor at a height of about 1.8–2.2 m and test the coverage area after mounting. Use Zigbee hubs known to support local scene execution to preserve automations when Wi‑Fi is unavailable. Replace the CR2477 battery proactively when low battery notifications appear in the app, and periodically clean the housing to prevent dust buildup on the sensor lens.