Dahua ARD416 Wired Shock Detector

Overview

The Dahua ARD416 is a wired shock detector that senses the small vibrations of drilling, hammering or forcing travelling through the surface it is fixed to, so the alarm goes off while an intruder is still trying to get in. It protects safes, ATMs, vaults, strongrooms, cash counters, steel cabinets and the walls of jewellery shops and bank branches, where attack must be detected before entry.

Is it right for you?

• It suits a safe, cabinet, ATM or wall that is a target for forcing, on a wired alarm panel with a spare zone.
• Coverage is 2 to 7 m on metal and 0.5 to 3 m on reinforced concrete, so one detector covers a safe or a short run of wall.
• Range depends heavily on the material and how firmly the detector is fixed. Near traffic or machinery you will need to test and lower the sensitivity.
• It needs a wired panel and a 9 to 15 V DC supply; it is not a wireless sensor.

Key features

• Piezoelectric ceramic sensor that picks up minute vibrations.
• Adjustable sensitivity, set to moderate by default.
• Normally closed (NC) alarm output rated 24 V DC, 100 mA, plus a separate NC case and wall tamper output rated 12 V DC, 100 mA.
• Draws 12 mA or less at 12 V DC, so it can run from a panel’s auxiliary output.
• Red and green indicator.
• Works from -25 to 50 °C and 10 to 95% humidity.
• Small surface-mount case in PC and ABS, 32 × 25 × 95 mm, 41 g.

What else you need

A wired alarm panel with a free zone for the alarm output and one for the tamper output, such as the Dahua ARC2008C-V3 or ARC2016C-V3, plus a 9 to 15 V DC supply, usually the panel’s auxiliary output. Put it on a 24-hour zone so the safe or vault stays protected when the building is disarmed.

Installation

Surface mount it firmly on the metal or concrete being protected, wire the alarm and tamper outputs and the 9 to 15 V DC supply back to the panel, then test each location and adjust the sensitivity so that traffic or machinery does not trigger it. An alarm installer should fit and test it.

Before you buy

• Detection range varies with the surface and fixing, so test each location before relying on it.
• It is a wired detector and needs a panel zone and supply.