DHI-ARD2251E-W2(868) Dahua Wireless External Triple-Tech Detector

Product reference: BSARD2251E-W2(868)

Wireless Triple-Tech Detector DHI-ARD2251E-W2 performs high precision detection using PIR, microwave detection technology, optical technology and intelligent algorithms. It also eliminates interference caused by small animals, the ambient temperature and changes in the light to  ensure that the detector accurately recognizes when people move, even in complex environments. When combined with the camera module, its capabilities expand allowing you to both monitor your scene through videos and images, and check alarms in real time. You also receive alarm notifications when alarms are triggered, so that you can stay up to date on the situation of your site.

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At stores prices may vary
Price:
€221.53
€183.08 tax excl.

Product information

ARD2251E-W2(868) Dahua Wireless External Triple-Tech Detector.

Features:

  • 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.

Specifications:

Port

Indicator Light

1 × green alarm indicator

Button

1 × power button

Function

Tamper Alarm

Yes

Remote Upgrade

Cloud update

Search

Signal strength detection

Test Mode

Yes

Low Battery Alarm

Yes

Wireless

Carrier Frequency

868.0 MHz–868.6 MHz

Transmitter Power(EIRP)

Limit 25mW

Communication Distance

Up to 1,600 m (5,249.34 ft) in an open space

Communication Mechanism

Two-way

Encryption Mode

AES128

Frequency Hopping

Yes

General

Power Supply

CR123A battery

Power Consumption

Max. 120 mW

Operating Temperature

–10 °C to +55 °C (+14 °F to +131 °F) (indoor)

Operating Humidity

10%–90% (RH).

Dimensions

104.0 mm × 60.0 mm × 50.0 mm (4.09" × 2.36" × 1.97") (L × W × H)

Package Dimensions

135.0 mm × 98.5 mm × 56.8 mm (5.31" × 3.88" × 2.24") (L × W × H)

Installation Mode

Wall mount

Net Weight

100 g (0.22 lb)

Gross Weight

170 g (0.37 lb)

Certifications

CE

EN 50131-1:2006+A1:2009+A2:2017+A3:2020

EN 50131-2-2:2017

EN 50131-6:2017

EN 50131-5-3:2017

Security Grade 2

Environmental Class II

Battery Life

4 years

Casing

PC + ABS

Temperature

Measuring Range

–15 °C to +65 °C (+18.8 °F to +149 °F) (indoor)

Measuring Precision

± 1 °C (± 33.8 °F)

Resolution

1 °C (33.8 °F)

Specification

Detection Mode

PIR

Sensor

Dual-element low-noise PIR sensor

Detection Range

12 m (39.37 ft) (90°) with installation height of 2.2 m (7.21 ft)

Detection Speed

0.3 m/s–3 m/s (0.98 ft/s–9.84 ft/s)

Pet Immunity Level

≤ 18 kg (39.68 lb)

White Light Resistance Level

2000 lx

Two-way Digital Temperature Compensation

Yes, no attenuation of detection distance in high temperature

Sensitivity

3 levels adjustable

Features

Color White
Pet imune Yes
Placement Suitable outdoors

Manufacturer

Dahua Technology is a world-leading video-centric AIoT solution and service provider. With its ‘Dahua Think#’ corporate strategy, Dahua Technology focuses on two core businesses: City and Enterprise. The company firmly strengthens its technological strategies that include AloT and IoT digital intelligence platforms, comprehensively promoting the digital intelligence upgrading of cities and enterprises based on customer needs, and creating more value for the digital-intelligent transformation of various industries.

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