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Dahua Wireless External Triple-Tech Detector

• Support anti-masking detection.
• Support moving detection to prevent someone move or detach the 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 the 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.

DHI-ARD2251E-W2 SPEC SHEET