Dahua DHI-ARD2251E-W2(868V) - Wireless PIR Motion Detector with Video Verification

Dahua DHI-ARD2251E-W2(868V) — Wireless PIR Motion Detector with Video Verification

The Dahua DHI-ARD2251E-W2(868V) is a wireless PIR motion detector that captures a verification image whenever it triggers, so you can see the actual cause of every alarm activation. It communicates wirelessly at 868MHz and is designed to pair with a compatible Dahua wireless alarm hub.

Who is it for?

This detector suits wireless intruder alarm installations where visual confirmation of an alert matters, giving installers and end users photographic evidence alongside each motion trigger. Its pet immunity setting (up to 80cm / 40kg) makes it a practical choice for homes and small commercial premises with pets, reducing false alarms while still catching a genuine intruder.

Key specification

Detection Type	PIR motion detection with video verification
Anti-Masking	Yes
Ingress Protection	IP66
Image Resolution	1280×960, 640×480, 320×240, 160×120
Pet Immunity	Up to 80cm / 40kg
Anti-Tamper	Movement detection to guard against removal or tampering
Firmware Update	Cloud update via mobile app, with dual backup and auto-recovery
Environmental Monitoring	Onboard temperature monitoring
Wireless Frequency	868MHz

What you will need

• A compatible Dahua wireless alarm hub/panel — this detector needs to be paired with a Dahua wireless control panel to operate as part of a system
• Battery power — the detector is wireless and battery-operated, so no mains wiring is required

Frequently asked questions

Does this detector send a photo when it triggers?

Yes, the DHI-ARD2251E-W2(868V) captures a verification image at resolutions up to 1280×960 whenever it detects motion, so you can confirm the cause of the alarm remotely.

Will it false-alarm on my pets?

It includes pet immunity for animals up to around 80cm in height and 40kg in weight, cutting down false triggers from pets while still detecting human intruders.

Is it suitable for outdoor use?

It carries an IP66 ingress protection rating, so it is built to cope with dust and heavy rain when sited appropriately.

Does it need a hub to work?

Yes — it communicates wirelessly at 868MHz with a compatible Dahua wireless alarm hub/panel, which is required for it to function as part of a system.

Browse the full Dahua range, our Intruder alarms category, Contact us on 01902 902251, or visit our Wolverhampton trade counter.