Motion Detector Nedis ALRMMW20WT White

The Nedis ALRMMW20WT motion detector is a white, battery-powered passive infrared (PIR) sensor designed for indoor use. It wirelessly links to a compatible siren and alerts you when movement is detected within its coverage. The detector offers a wide detection range and flexible placement thanks to its wireless, battery-operated design. The siren communicates with the sensor up to 80 metres and features an adjustable volume suitable for noisy environments.

Advantages

The device provides wireless motion detection with easy placement because it runs on batteries and does not require wiring. It pairs with a siren at distances up to 80 metres, ensuring communication across typical indoor spaces. The siren produces sound levels sufficient to be heard above background noise in busy rooms, and volume can be adjusted to match your requirements. The white finish integrates discreetly into homes and offices.

Suitable for

• Home intrusion detection in corridors, living rooms and entryways
• Office motion monitoring for common areas and small rooms
• Temporary or rental properties where non‑invasive installation is required
• Areas requiring remote placement of a sensor without access to mains power

Key specifications

• Model: Nedis ALRMMW20WT
• Type: PIR motion detector (battery operated)
• Colour: White
• Wireless range to siren: up to 80 metres
• Intended use: Indoor
• Includes: Motion sensor (pairs with compatible siren)

How to use

Install batteries, mount the detector in the chosen indoor location using standard mounting hardware or adhesive, and pair it with the compatible siren following the manufacturer pairing procedure. Position the sensor to cover the desired area, avoiding direct sunlight, heating vents or reflective surfaces that could affect PIR performance. Adjust the siren volume as needed once the devices are linked.

Usage recommendations

Place the sensor at a height and angle that provide a clear view of the monitored area, typically 1.8–2.5 m above the floor for optimal PIR coverage. Test detection and siren volume after installation and check batteries periodically to maintain reliable operation.