Description
The DHI-ARD324-W2(868) is a wireless magnetic contact with mounting for the Dahua alarm system, suitable for securing doors and windows. It features a reed switch, a 40mm opening, one dry contact input, a low battery warning, an LED indicator, and tamper protection. Furthermore, the contact can measure temperature levels with an accuracy of ±1°C within a range of -15°C to +65°C. In addition to open and closed detection, this model also has a tilt sensor and a shock sensor, making it ideal for bedroom windows where you can set the alarm to night mode and still ventilate the room with tilt-and-turn windows.
The DHI-ARD324-W2 communicates bidirectionally at distances of up to 1200 m in open space, using an 868 MHz wireless frequency, protected by AES128 encryption and frequency hopping. Its rugged housing, made of high-quality PC and ABS, allows for use in temperatures between -10°C and +55°C and is designed for indoor applications. It is powered by a CR123A battery with a battery life of up to 5 years.
Specifications
| Input/Output
|
Alarm Input |
1 (Normally Closed; Normally Open; Pulse Counter) |
| Function
|
Indicator lamp |
1 × green alarm indicator |
|
Knob |
1 × on/off button |
|
Distance update |
Cloud update |
|
Low Battery Detection |
Yes |
|
Sabotage |
Yes |
|
Measuring range (Temperature) |
Indoor: –15 °C to +65 °C (+5 °F to +149 °F) |
|
Measurement accuracy |
±1 °C (±1.8 °F) |
| Technical
|
Sensor |
Triaxial Accelerometer, Reed Switch |
|
Movement distance |
< 40 mm (1.57") |
|
Shock detection |
High, normal, low |
|
Tilt detection |
Up to 25° |
|
Test mode |
Yes |
|
Scenario |
Non-metal doors |
|
Business flow |
12 uA |
|
Alarm current |
2.3 mA |
| Wireless
|
Carrier Frequency |
868.0 MHz–868.6 MHz |
|
Transmit Power (EIRP) Limit |
25 mW |
|
Communication distance |
Up to 1,200 m (3937.01 ft) in open space |
|
Communication mechanism |
Two-way |
|
Frequency hopping |
Yes |
|
Encryption mode |
AES128 |
| General
|
Power supply |
CR123A × 1 |
|
Battery life |
3 years (external input type is NO, triggered 2 times per day, battery efficiency of 70%)
1.5 years (external input type is NC) |
|
Power consumption |
167 mW |
|
Operating temperature |
Indoor: –10 °C to +55 °C (+14 °F to +131 °F) |
|
Operating humidity |
10%–90% (RH) |
|
Storage temperature |
–10 °C to +55 °C (+14 °F to +131 °F) |
|
Storage humidity |
10%–90% (RH) |
|
Product dimensions |
100.2 mm × 20.8 mm × 20.3 mm (3.94" × 0.82" × 0.80") |
|
Net Weight |
70 g (0.15 lb) |
|
Installation |
Bracket mount |
|
Housing material |
PC + ABS |
|
Certifications |
CE |
