Dahua Alarm ARD512-W2 Dahua Wireless Glass Break Detector

Wireless indoor glass break detector designed to detect the sound of breaking glass. Uses dual-frequency sound analysis (high and low frequency) with intelligent algorithms to reduce false alarms. Supports two-way encrypted wireless communication and frequency hopping for stable operation.

Datasheet

---

Key Features

• Detects tempered, double-glazed, laminated, wired, plate and float glass

• Simultaneous high and low frequency sound detection

• Advanced algorithm to reduce false alarms

• 2-channel alarm input (NO/NC)

• Two-way encrypted wireless communication

• AES128 encryption

• Frequency hopping mechanism

• Cloud firmware update with auto recovery

• Tamper protection

• Low battery detection

---

Detection

• Detection range: Up to 9 m

• Glass thickness: 2.4 mm – 6.4 mm

• Glass size: 0.3 m × 0.3 m to 3 m × 3 m

• Microphone: Highly-sensitive omnidirectional

• Test mode: Yes

• LED indicator: 1 × green alarm indicator

• Application: Indoor

---

Ports

• Alarm input: 2 (NO/NC)

---

Electrical

• Power supply: 1 × CR123A battery

• Battery model: CR123A

• Battery life:

  • 3 years (external input type NO)

  • 1 year (both external sensors enabled, input type NC)

• Operating current: 45 μA

• Alarm current: 50 mA

• Max power consumption: 150 mW

• Low battery detection: Yes

• Tamper: Yes

---

Wireless

• Frequency: 433.1 – 434.6 MHz

• Communication: Two-way

• Communication distance: Up to 1,200 m (open space)

• Encryption: AES128

• Frequency hopping: Yes

---

Environmental

• Operating temperature: –10°C to +55°C (indoor)

• Operating humidity: 10%–90% RH

• Anti-corrosion level: Basic protection

• Certification: CE

---

Physical

• Installation: Surface mount

• Casing material: PC + ABS

• Color: White

• Dimensions: 107.8 × 34.5 × 24.8 mm

• Net weight: 45 g

• Gross weight: 130 g

• Packaging dimensions: 95 × 43 × 139 mm