Dahua DHI-ARD2251E-W2(868) Wireless external PIR
Regular price
€185,00
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Product Description
Dahua Wireless PIR Motion Detector DHI-ARD2251E-W2(868) supports masking and motion detection, preventing attempts to remove the device. It is possible to install camera modules for video confirmation. It provides protection against animals up to 80cm and 40kg and monitors the ambient temperature. Two-way communication and frequency hopping ensure stable and reliable communication with the alarm hub. Cloud updates and remote updates via mobile app are supported, with double redundancy and automatic recovery in case of failed updates.
Specifications
| Indicator light | 1 × green alarm indicator |
| Knob | 1 × on/off switch; 1 × Detection range adjustment switch |
| Remote update | Cloud update |
| Detecting an empty battery | Yes |
| Sabotage | Sabotage alarm |
| Motion detection | Yes |
| Detection mode | PIR + Microwave |
| Sensitivity | PIR: 3 levels adjustable |
| Detection range | Angle: 90° Range: 15m (49.21ft), installation height is 1m (3.28ft) |
| Detection speed | 0.3 m/s–2 m/s |
| Microwave frequency | 24G |
| Pet immunity level | <80 cm (2.62 ft), approximately 40 kg (88.19 lb) |
| White light resistance level | 10,000 lux |
| Anti-masking | Yes |
| Two-way digital temperature compensation | Yes |
| Scenario | Outside, inside |
| Business flow | 20 uA |
| Alarm current | Without camera: 26 mA (average); 250 mA (maximum) With camera at night: 380 mA (average); 1.5 A (maximum) |
| Carrier frequency | 868.0 MHz–868.6 MHz |
| Transmitter power (EIRP) | Limit 25 mW |
| Communication mechanism | Two-way traffic |
| Communication distance | RF: Up to 1,600 m (5,249.34 ft) in open space |
| Encryption mode | AES128 |
| Frequency hopping | Yes |
| Power supply | CR123Ax4 |
| Battery life | Without camera: 5 years (activates 10 alarms per 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 | 211mm × 106mm × 94mm (8.31" × 4.17" × 3.7") |
| Installation height | 0.8 to 1.3 m |
| Net weight | 651 grams (1.44 pounds) |
| Gross weight | 890 grams (1.96 pounds) |
| Installation | Wall mounting, pole mounting |
| Casing material | PC + girlfriend |
| Protection | IP66 |
| Certifications | CE |
| Corrosion resistance level | Basic protection |
| Storage temperature | –25 °C to +60 °C (–13 °F to +140 °F) |
| Packaging dimensions | 251mm × 116mm × 119mm (9.88" × 4.57" × 4.69") |
