Product Overview

VU-3 Volumetric Accelerometer Detector

Designed for display cases in jewelry stores, museums, and art galleries, as well as high-security safes, armories, and similar facilities.
This detector identifies unauthorized entry or object movement inside a showcase and triggers an alarm via relay NC output (opens on alarm). Features triple detection technology (Ultrasonic + Vibration + Displacement) – any signal triggers an immediate alarm. Compact design for easy installation and maintenance. Built-in tamper switch included.

Core Value: Triple detection – any trigger alarms. Far more secure than single-tech sensors.

Specifications

Specifications：

Installation & Wiring Diagram

Wiring Guide:

• Relay output：NO （Normally Open）- closes on alarm
  

• Tamper switch
  

  
  

  
  

TAMP : Tamper Terminal;

RX Receiver Terminal; TX Transmitter Terminal;

Attention: Shield Wire connected to "-"；
ALARM: Alarm Terminal;   12V Power Terminal

Installation：

• Open the cover and wire as shown above

• Drill holes and secure signal processor with screws

       Wood: drill φ2mm, M4×20mm screw

       Metal/plastic: drill φ3mm, tap M4 thread

• TX/RX modules: bracket mounting recommended for easy alignment

  
  

Applications：

Additional Resources：