Description
DHI-ARD2251E-W2(868)
Dahua Wireless External Triple-Tech Detector
Datasheet:
DHI-ARD2251E-W2(868)
- Support anti-masking detection.
- Support moving detection to prevent someone move or detach device.
- Support the installation of camera modules to form PIR-Cam to implement video verification.
- Pet immunity: up to 80 cm, 40kg.
- Support environment temperature monitoring.
- Supports two-way communication and frequency hopping to make communication with alarm hub stable and reliable.
- Features cloud update. You can also remotely update the device on the mobile app.
- Offers a dual backup system, and uses auto recovery when an update fails.
| Details | |
|---|---|
| Function | |
| Indicator Light | 1 × green alarm indicator |
| Button | 1 × power switch 1 × detection range adjustment switch |
| Remote Update | Cloud update |
| Low Battery Detection | Yes |
| Tamper | Tamper alarm |
| Moving Detection | Yes |
| Technical | |
| Detection Mode | PIR + Microwave |
| Sensitivity | PIR: 3 levels adjustable |
| Detection Range | Angle: 90° Range: 15 m (49.21 ft), the installation height is 1 m (3.28 ft) |
| Detection Speed | 0.3 m/s–2 m/s |
| Microwave Frequency | 24 G |
| Pet Immunity Level | < 80 cm (2.62 ft), about 40 kg (88.19 lb) |
| White Light Resistance Level | 10,000 lux |
| Anti-masking | Yes |
| Two-way Digital Temperature Compensation | Yes |
| Scenario | Outdoor / Indoor |
| Operating Current | 20 μA |
| Alarm Current | Without Camera: 26 mA (Avg) / 250 mA (Max) With Camera in Night: 380 mA (Avg) / 1.5 A (Max) |
| Wireless | |
| Carrier Frequency | 868.0 MHz–868.6 MHz |
| Transmitter Power (EIRP) | Limit 25 mW |
| Communication Mechanism | Two-way |
| Communication Distance | RF: Up to 1,600 m (5,249.34 ft) in an open space |
| Encryption Mode | AES128 |
| Frequency Hopping | Yes |
| General | |
| Power Supply | CR123A × 4 |
| Battery Life | Without Camera: 5 years (triggers 10 alarms a day) With Camera: 3.5 years (triggers alarms twice a week) |
| Operating Temperature | –25 °C to +60 °C (–13 °F to +140 °F) |
| Operating Humidity | 10%–90% (RH) |
| Product Dimensions | 211 mm × 106 mm × 94 mm (8.31″ × 4.17″ × 3.7″) |
| Installation Height | 0.8 to 1.3 m |
| Net Weight | 651 g (1.44 lb) |
| Gross Weight | 890 g (1.96 lb) |
| Installation | Wall mount / Pole mount |
| Casing Material | PC + GF |
| Protection | IP66 |
| Certifications | CE |
| Anti-corrosion Level | Basic Protection |
| Storage Temperature | –25 °C to +60 °C (–13 °F to +140 °F) |
| Packaging Dimensions | 251 mm × 116 mm × 119 mm (9.88″ × 4.57″ × 4.69”) |
