描述
ARD2251E-W2(V)
Dahua Wireless External PIR-Camera (Only compatible with ARC3800H series)
ARD2251E-W2(V) 屬大華防盜警報產品。傑成系統有限公司（香港防盜）為大華產品安裝商及經銷商，可提供供應、安裝、調試、保養及維修。方案可參考防盜系統。規格以原廠資料為準。
規格
Video & Audio
| Field of View | 110° (H); 60° (V) |
|---|---|
| Image Type | JPEG |
| Resolution | 1280 × 960; 640 × 480; 320 × 240;160 × 120 |
| Frame Rate | 2 |
| Illumination Mode | Infrared Light |
| Day/Night Switch | Color/Black and White |
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 |
| White Light Resistance Level | 10,000 lux |
| Anti-masking | Yes |
| Two-way Digital Temperature Compensation | Yes |
| Scenario | Outdoor, indoor |
| Operating Current | 20 uA |
| Alarm Current | Without Camera: 26 mA (Avg); 250 mA (Max) With Camera in Night: 380 mA (Avg); 1.5 A (Max) |
Wireless
| Carrier Frequency | 433.1 MHz–434.6 MHz |
|---|---|
| Transmitter Power (EIRP) | Limit 10 mW |
| Communication Mechanism | Two-way |
| Communication Distance | RF: Up to 1,200 m (3,937.01 ft) in an open space RF-HD: Up to 1,000 m (3280.84 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 | 263 mm × 106 mm × 94 mm (10.35" × 4.17" × 3.70") |
| Installation Height | 0.8 m–1.3 m (2.62 ft–4.27 ft) |
| Net Weight | 0.76 kg (1.68 lb) |
| Gross Weight | 1.06 kg (2.34 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) |
| Storage Humidity | 10%–90% (RH) |
| Packaging Dimensions | 297 mm × 146 mm × 120 mm (11.69" × 5.75" × 4.72") |
