DHI-ARD1233-W2 WIRELESS PIR MOTION DETECTOR

Description

The Dahua ARD1233‑W2 is a compact wireless passive infrared (PIR) motion detector designed primarily for indoor security systems such as alarms in homes, apartments, villas, and small businesses. It combines intelligent detection technology with reliable wireless communication and long battery life to deliver dependable motion sensing with minimal false alerts.

🔍 Core Motion Detection Features

• PIR Detection Technology: Uses a dual‑element low‑noise PIR sensor that detects the infrared energy emitted by moving people, providing accurate detection of human movement.

• Wide Coverage: Motion can be detected up to approximately 12 meters (around 39 ft) with a 90° field of view when mounted at a recommended height (≈2.2 m).

• Motion Speed Support: It reliably senses movement within a range of 0.3 m/s to 3 m/s (≈1 – 10 ft/s).

• Adjustable Sensitivity: Three sensitivity levels (high, medium, low) let you fine‑tune detection for your environment, reducing unnecessary triggers in less active areas or increasing responsiveness where needed.

🐾 Pet Immunity & False‑Alarm Reduction

• Pet Immunity Function: The detector is designed to ignore pets weighing up to about 18 kg (≈40 lb) so that normal pet movement doesn’t trigger a false alarm.

• Auto Temperature Compensation: Helps the PIR sensor maintain reliable detection accuracy even when the ambient temperature changes significantly.

📶 Wireless Communication

• Two‑Way RF Communication: The device uses secure two‑way radio communication, ensuring both the detector and the alarm panel can exchange signals.

• Stable Wireless Link: Frequency‑hopping spread spectrum technology helps resist interference and provides stable communication with the control panel.

• Encryption: AES128 encryption protects data transmissions, adding a layer of security against signal spoofing or tampering.

• Long Range: Depending on the version and frequency band used, it can communicate up to about 1,200 – 1,600 meters (≈3,900 – 5,200 ft) in open environments to reach the alarm hub.

🧠 Smart and Practical Features

• Low Battery Alert: The detector notifies the system when the battery is running low, helping you replace it before performance degrades.

• Tamper Protection: Built‑in tamper detection alerts the system if the unit is removed or tampered with, providing additional security.

• Signal Strength Detection: Measures signal quality, useful for optimal placement and troubleshooting.

• Temperature Monitoring: In addition to motion detection, it can report ambient temperature with an accuracy around ±1 °C within a broad range.

• Cloud Firmware Updates: Support for remote or cloud‑based updates lets the device receive the latest software enhancements and can automatically recover from failed updates.

🔋 Power & Physical Design

• Battery Powered: Uses a standard CR123A battery that typically lasts up to 4 years under normal use.

• Compact, Wall‑Mountable: With a small form factor (≈104 × 60 × 50 mm), it’s easy to install in hallways, rooms, or entry points without being obtrusive.

• Operating Conditions: Designed for indoor use in environments with temperatures from about ‑10 °C to +55 °C and up to 90 % relative humidity.