Dahua Technology

Dahua Sesmic Detector ARD421

Rs. 5,040.64

~~Rs. 6,048.76~~ Rs. 5,040.64

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Overview

The Dahua ARD421 Seismic Detector is a high-performance vibration detector designed to protect ATMs, safes, vaults, vehicles, metal cabinets, and other high-value assets. It can detect attacks caused by impacts, electric drills, impact drivers, gas cutting, and explosions, providing reliable physical intrusion detection.

Equipped with a piezoelectric ceramic sensor and temperature sensor, the ARD421 offers configurable sensitivity levels and impact counts to adapt to different installation environments. Additional features such as low-voltage detection, tamper protection, and selectable NO/NC alarm output make it an ideal solution for high-security applications.

Key Features

✔ Detects impacts, drilling, gas cutting, and explosions

✔ Piezoelectric ceramic vibration sensor

✔ Built-in temperature sensor

✔ 5 adjustable sensitivity levels

✔ Configurable number of impact counts

✔ Temperature rise alarm (10°C increase within 30 seconds)

✔ Two-color LED status indicator

✔ Low-voltage alarm below 8 V

✔ Selectable NO or NC alarm output

✔ Case tamper and fall detection

Why Choose Dahua ARD421?

Advanced Physical Attack Detection

Detects vibrations generated by impacts, electric drills, gas cutting and explosions to provide comprehensive protection against physical intrusion.

Flexible Sensitivity Adjustment

Five adjustable sensitivity levels and configurable impact counts allow the detector to be optimized for different surfaces and applications.

Temperature Monitoring

The built-in temperature sensor can trigger alarms when a rapid temperature increase is detected, helping identify gas-cutting attacks.

Tamper Protection

Built-in tamper detection alerts users when unauthorized attempts are made to remove or open the device.

Ideal for High-Security Environments

Perfect for protecting ATMs, vaults, safes, armored vehicles, and metal storage cabinets.

Technical Specifications

Feature	Specification
Product Type	Seismic / Vibration Detector
Model	ARD421
Sensor Type	Piezoelectric Ceramic Sensor + Temperature Sensor
Detection Mode	Mechanical Vibration and Temperature Detection
Sensitivity Levels	5 Adjustable Levels
Alarm Output	1 Channel Dry Contact (12 VDC, 0.11 A Max.)
Relay Output	Normally Closed (Default), NO/NC Selectable
Indicator Light	One Two-Color LED Indicator
Tamper Detection	Supported
Operating Current	18 mA
Alarm Current	15 mA
Power Supply	9–15 VDC
Power Consumption	≤1.2 W
Operating Temperature	-25°C to +55°C
Storage Temperature	-40°C to +70°C
Operating Humidity	0%–95% RH (Non-Condensing)
Installation	Wall Mount
Casing Material	Zinc-Aluminum Alloy
Dimensions	85 × 37 × 28 mm
Net Weight	395 g
Gross Weight	436 g
Certifications	CE