Dahua DHI-ARD512-W2 Wireless Glass Break Detector with 9m Detection Range, AES128 Encryption & Two-Way Wireless

Product SKU: DHI-ARD512-W2

Product Overview

The Dahua DHI-ARD512-W2 is a wireless glass break detector designed for indoor alarm systems where windows, glazed doors and other glass areas need acoustic intrusion detection without running dedicated alarm cabling back to the hub. Its highly sensitive omnidirectional microphone listens for both the low-frequency impact and high-frequency breaking sounds associated with shattered glass, using detection algorithms to help reduce false alarms caused by surrounding noise. The detector provides a maximum 9-metre detection range and supports tempered, double-glazed, laminated, wired, plate and float glass within Dahua’s specified size and thickness limits. Two-way encrypted wireless communication uses AES128 encryption and frequency hopping for communication stability, while two additional NO/NC alarm inputs allow compatible third-party wired detectors to be incorporated. Tamper protection, low-battery detection, test mode and CR123A battery operation make it a practical addition to compatible Dahua wireless alarm installations.

Key Capabilities

Best For

• Homes with Large Windows: Suitable for indoor rooms where several supported glazed areas can be positioned within the detector’s maximum 9-metre acoustic detection range.
• Retail Shopfronts: Useful as part of an intrusion system protecting large glass shopfronts, doors and display windows against breakage.
• Offices and Commercial Premises: Provides wireless glass break monitoring around reception areas, offices and other spaces containing accessible glazing.
• Wireless Alarm Retrofits: Battery operation reduces the need to run dedicated alarm power cabling to the detector location.
• Mixed Wired and Wireless Sensors: Two NO/NC external inputs are useful where selected third-party wired detectors need to be incorporated into the alarm design.

Why Choose the DHI-ARD512-W2

The DHI-ARD512-W2 is useful when an alarm installation needs to detect the sound of glass breaking rather than relying only on door contacts or movement sensors after someone has already entered the premises. Its acoustic design listens for both high- and low-frequency characteristics associated with breaking glass, while the 9-metre range allows flexible placement within supported indoor environments. AES128 encryption, two-way communication and frequency hopping add resilience to the wireless connection, and the two NO/NC inputs make the detector more versatile than a basic standalone wireless sensor. Available through Security Wholesalers, it is particularly well suited to Dahua wireless alarm installations protecting rooms with accessible windows, glazed doors or shopfront-style glass where early breakage detection is valuable.

Buyer Decision Tips

Key Features & Technical Specifications

Product Type	Wireless glass break detector.
Detection Range	Maximum 9m.
Detection Method	High- and low-frequency acoustic glass-break detection.
Microphone	Highly sensitive omnidirectional microphone.
Supported Glass Types	Tempered, double-glazed, laminated, wired, plate and float glass.
Supported Glass Thickness	2.4–6.4mm.
Supported Glass Size	From 0.3 × 0.3m up to 3 × 3m.
External Alarm Inputs	2 × NO/NC alarm inputs.
Wireless Frequency	433.1–434.6MHz.
Communication	Two-way wireless communication.
Wireless Distance	Up to 1,200m.
Encryption	AES128.
Frequency Hopping	Supported.
Tamper Protection	Supported.
Low-Battery Detection	Supported.
Test Mode	Supported.
LED Indicator	1 × green alarm indicator.
Remote Update	Cloud update with automatic recovery from update failure.
Power Supply	1 × CR123A battery.
Battery Life	Up to 3 years with NO external input configuration; 1 year when both external sensors are enabled with NC inputs.
Operating Current	45µA.
Alarm Current	50mA.
Maximum Power Consumption	150mW.
Installation Environment	Indoor.
Installation	Surface mount.
Operating Temperature	-10 °C to +55 °C.
Operating Humidity	10%–90% RH.
Casing Material	PC and ABS.
Colour	White.
Dimensions	107.8 × 34.5 × 24.8mm.
Net Weight	45g.
Certification	CE.

Ideal Use Cases

Choosing the Right Model

• Choose this model if: You need indoor acoustic glass-break protection covering supported glazing up to 9 metres from the detector.
• Choose this model if: AES128 encrypted two-way wireless communication, frequency hopping and battery operation are important for the alarm installation.
• Check the glass specification first if: The installation contains unusually thick, very small or oversized glazing, as supported glass thickness is 2.4–6.4mm and supported dimensions range from 0.3 × 0.3m to 3 × 3m.
• Choose a different detector type if: The required location is outdoors, because the DHI-ARD512-W2 is specified for indoor installation.

FAQs

1. What does the Dahua DHI-ARD512-W2 detect?
   The DHI-ARD512-W2 is designed to recognise the acoustic signature of breaking glass. It listens for both low- and high-frequency sounds and uses algorithms intended to reduce false alarms caused by environmental noise. Dahua lists support for tempered, double-glazed, laminated, wired, plate and float glass, making the detector useful for indoor rooms with vulnerable glazed doors, windows or panels.
2. How far can the DHI-ARD512-W2 detect breaking glass?
   Dahua specifies a maximum detection range of 9 metres. The supported glass must also fall within the stated size and thickness limits: 2.4–6.4mm thick and from 0.3 × 0.3 metres up to 3 × 3 metres. When planning placement, make sure the glass you want to protect is within the detector’s rated range and matches the supported glass specifications.
3. How secure is the wireless communication on the DHI-ARD512-W2?
   The detector uses two-way wireless communication with AES128 encryption. It also supports frequency hopping, allowing the device to move to another available frequency band when the original band is affected by interference from other wireless radios. Dahua specifies a carrier frequency range of 433.1–434.6MHz and a communication distance of up to 1,200 metres.
4. Can the DHI-ARD512-W2 connect wired alarm devices as well?
   Yes. The detector provides two alarm inputs that support NO or NC configurations, and Dahua states that its two external ports can connect to third-party wired detectors. This can be useful when the installation needs a wireless glass-break detector while also bringing additional wired alarm sensors into the same device. The external input configuration also affects the expected battery life.
5. How long does the battery last in the DHI-ARD512-W2?
   The detector uses one CR123A battery. Dahua specifies battery life of up to 3 years when the external input type is NO. Where both external sensors are enabled and the input type is NC, the specified battery life is 1 year. Low-battery detection is built in, allowing the system to identify when battery replacement is required.
6. Does the DHI-ARD512-W2 have tamper protection and a test mode?
   Yes. The DHI-ARD512-W2 includes tamper detection and a dedicated test mode. It also has a green alarm indicator and supports cloud updates with automatic recovery from update failure. These functions help installers test the detector after placement and maintain the device as part of a compatible Dahua wireless alarm system.
7. What should I check before buying the DHI-ARD512-W2?
   Check that the detector will be used indoors, that the protected glass is within the maximum 9-metre detection range and that its type, thickness and size fall within Dahua’s supported specifications. Buyers sourcing the detector through Security Wholesalers should also confirm that the planned Dahua wireless alarm hub and any external NO or NC devices suit the overall alarm design before installation.

Additional Information

Dahua DHI-ARD512-W2-Datasheet