Dahua Technology

Dahua Triple-Tech Detector ARD2251E-W2

Rs. 11,440.64

~~Rs. 13,728.76~~ Rs. 11,440.64

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Overview

The Dahua ARD2251E-W2 Triple-Tech Detector is a professional-grade outdoor wireless intrusion detector that combines PIR, microwave, optical technology, and intelligent algorithms to provide highly accurate motion detection while minimizing false alarms. Designed for both indoor and outdoor applications, the detector offers dependable perimeter protection for homes, villas, offices, warehouses, and commercial facilities.

Featuring anti-masking technology, pet immunity, moving detection, environmental temperature monitoring, and IP66 weatherproof protection, the ARD2251E-W2 delivers reliable performance even in harsh environments. Two-way wireless communication, AES128 encryption, and frequency hopping technology ensure secure and stable communication with the Dahua Alarm Hub.

Key Features

✔ Triple-tech detection using PIR, microwave and optical technologies

✔ Outdoor and indoor installation support

✔ Detection range up to 15 m with 90° coverage

✔ Anti-masking detection

✔ Motion detection against tampering or removal

✔ Pet immunity up to 40 kg

✔ Automatic digital temperature compensation

✔ White light resistance up to 10,000 lux

✔ Environmental temperature monitoring

✔ Two-way wireless communication

✔ AES128 encryption and frequency hopping technology

✔ Cloud firmware update with automatic recovery

✔ IP66 weatherproof protection

✔ Battery life up to 5 years

Why Choose Dahua ARD2251E-W2?

Advanced Triple-Tech Detection

Combining PIR, microwave and optical technologies provides highly reliable detection and reduces false alarms caused by environmental interference.

Ideal for Outdoor Protection

With IP66-rated weatherproof housing and operation down to -25°C, the detector is designed for harsh outdoor environments.

Enhanced Security Features

Anti-masking detection and moving detection help prevent attempts to block, remove or tamper with the detector.

Pet-Friendly Design

Pet immunity up to 40 kg helps eliminate false alarms caused by animals.

Long Battery Life

Technical Specifications

Feature	Specification
Product Type	Wireless Triple-Tech Detector
Detection Technology	PIR + Microwave + Optical Algorithm
Detection Range	15 m
Detection Angle	90°
Installation Height	0.8 m – 1.3 m
Detection Speed	0.3 m/s – 2 m/s
Microwave Frequency	24 GHz
Pet Immunity	Up to 40 kg and 80 cm Height
Sensitivity Adjustment	3 Levels
White Light Immunity	10,000 lux
Anti-Masking	Supported
Moving Detection	Supported
Temperature Compensation	Two-Way Digital Temperature Compensation
Environmental Temperature Monitoring	Supported
Application Scenario	Indoor and Outdoor
Communication Mechanism	Two-Way Wireless Communication
Encryption Mode	AES128
Frequency Hopping	Supported
Wireless Frequency	868.0 MHz – 868.6 MHz
Transmission Power	Up to 25 mW (EIRP)
Communication Distance	Up to 1,600 m (Open Area)
Remote Upgrade	Cloud Update
Low Battery Detection	Supported
Tamper Alarm	Supported
Power Supply	4 × CR123A Batteries
Battery Life	Up to 5 Years
Operating Temperature	-25°C to +60°C
Operating Humidity	10% – 90% RH
Protection Level	IP66
Installation	Wall Mount or Pole Mount
Dimensions	211 × 106 × 94 mm
Net Weight	651 g
Casing Material	PC + GF
Certification	CE EN50131 Grade 2