Dahua DHI-ARD2251E-W2(868V) - AirShield Wireless PIR Camera
Product Features
- Dahua DHI-ARD2251E-W2(868V) AirShield wireless PIR camera and outdoor motion sensor with video verification.
- Triple-tech PIR, microwave and optical detection with anti-masking, 15m range.
- Built-in camera, snapshots up to 1280 x 960, infrared illumination to 15m.
- IP66, outdoor and indoor use, pet immunity up to 80cm and about 40kg.
- 868MHz two-way link, only compatible with the ARC3800H series.
Dahua DHI-ARD2251E-W2(868V) — AirShield Wireless External PIR Camera
The Dahua DHI-ARD2251E-W2(868V) is an AirShield wireless external PIR camera and outdoor PIR detector with video verification. It works as an external PIR detector, outdoor motion sensor and outdoor motion detector. Dahua describes it as a triple-tech detector: PIR, microwave and optical technology with intelligent algorithms, filtering out interference from small animals, ambient temperature and changes in light. It is IP66 rated for outdoor and indoor use, and it is only compatible with the ARC3800H series.
Also listed as ARD2251E-W2(868V).
Key features
- Triple-tech detection: PIR, microwave and optical technology with intelligent algorithms; 15m range at 90° (installation height 1m).
- Video verification: a built-in camera sends snapshots at up to 1280 × 960, with infrared illumination of 15m at night.
- Anti-masking detection, and moving detection to prevent someone moving or detaching the device.
- Pet immunity: up to 80cm, about 40kg.
- IP66, scenario outdoor and indoor, operating temperature -25°C to +60°C.
- Environment temperature monitoring, with cloud update, dual backup and automatic recovery if an update fails.
- Two-way communication and frequency hopping on 868MHz: RF up to 1,600m, RF-HD up to 1,400m in open space.
- Four CR123A batteries: 5 years without the camera, 3.5 years with the camera.
- Suitable for the ARC3800H series only, excluding the ARC3000H series and ARA43 series.
Technical specification
| Model | DHI-ARD2251E-W2(868V) |
|---|---|
| Type | Wireless triple-tech detector (external PIR-camera) |
| Detection mode | PIR + microwave |
| Sensitivity | PIR: 3 levels adjustable |
| Detection range | Angle 90°; range 15m (49.21 ft) with installation height of 1m (3.28 ft) |
| Detection speed | 0.3m/s-2m/s |
| Microwave frequency | 24 GHz |
| Pet immunity level | Under 80cm (2.62 ft), about 40kg (88.19 lb) |
| White light resistance level | 10,000 lux |
| Anti-masking | Yes |
| Scenario | Outdoor, indoor |
| Field of view | 110° (H); 60° (V) |
| Resolution | 1280 × 960; 640 × 480; 320 × 240; 160 × 120 (JPEG, frame rate 2) |
| Illumination | Infrared light, 15m (49.21 ft); colour and black and white day-night switch |
| Carrier frequency | 868.0MHz-868.6MHz |
| Communication | Two-way, AES128 encryption, frequency hopping |
| Communication distance | RF: up to 1,600m (5,249.34 ft); RF-HD: up to 1,400m (4,593.18 ft) in an open space |
| Power supply | CR123A × 4 |
| Battery life | Without camera: 5 years (10 alarms a day); with camera: 3.5 years (alarms twice a week) |
| Operating temperature | -25°C to +60°C (-13°F to +140°F), 10%-90% RH |
| Protection | IP66 |
| Dimensions | 263mm × 106mm × 94mm (10.35" × 4.17" × 3.70") |
| Installation | Wall mount, pole mount; installation height 0.8m to 1.3m |
| Net weight | 763g (1.68 lb) |
| Certifications | CE; EN 50131-1:2006+A1:2009+A2:2017+A3:2020; EN 50131-6:2017+A1:2021; EN 50131-5-3:2017; EN 50131-2-4:2020; Security Grade 2; Environmental Class IV |
Works with
- Dahua DHI-ARC3800H-FW2(868) alarm hub (the ARC3800H series is the only hub series Dahua lists for this detector)
Common questions
Does it send a photo when it triggers?
Yes. It has a built-in camera for video verification, with JPEG snapshots at 1280 × 960, 640 × 480, 320 × 240 or 160 × 120, and infrared illumination of 15m at night.
Can I use it outdoors?
Dahua lists the scenario as outdoor and indoor. It is IP66 rated with an operating range of -25°C to +60°C.
Will it false-alarm on pets?
It has pet immunity for animals under 80cm and about 40kg, and the triple-tech detection filters out interference from small animals, temperature and light changes.
Which alarm hubs does it work with?
Dahua says it is suitable for the ARC3800H series only, excluding the ARC3000H series and ARA43 series.
Does it have anti-masking and tamper protection?
Yes. Dahua lists anti-masking detection, a tamper alarm, and moving detection to prevent someone moving or detaching the device.
How long do the batteries last?
It takes 4 CR123A batteries. Dahua quotes 5 years without the camera (10 alarms a day) or 3.5 years with the camera (alarms twice a week).
How is it mounted?
Wall mount or pole mount, at an installation height of 0.8m to 1.3m.
Full manufacturer specification: Dahua product page
Supplied by Zenith Security Co, Wolverhampton. We deliver to England, Scotland and Wales, or you can collect from our Wolverhampton trade counter (please call first).
Browse the full Dahua range, more intruder alarms, or contact us on 01902 902251 or visit our Wolverhampton trade counter for advice.
Browse the range: Dahua AirShield alarms · Dahua cameras.
| Product Code | DHI-ARD2251E-W2(868V) |
|---|---|
| Brand | Dahua |
| Device Type | PIR/Pet |
| Product Type | Intruder & Smoke Alarm |
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