Paradox DG457 Glass break detector for alarm systems.

Features:
Two operational modes (addressable for the DigiPlex EVO series or conventional relay operation)
Remote test mode when used with Test Trek V2
Full audio and infrasonic spectrum analysis
7 frequency digital filters, digital amplifier gain and frequency fluctuation assessment
Impact and shock wave analysis
High-immunity to RFI and EMI signals
Adjustable sensitivity: covers up to 9m (30ft) when set to high and up to 4.5m (15ft) when set to low
Test Trek (459) used for testing available separately
Anti-tamper switch