Paradox Acoustic glass break detector. Directional. BUS-operated, wired. Indoor use, coverage 4.5 m (low sensitivity), 9 m (high sensitivity), audio and infrasonic spectrum analysis. Tamper switch, 7 filters: frequency, digital amplifier gain and frequency fluctuation assessment, impact and shock wave analysis. High immunity to RF interference; Addressable – Digiplex Evo™ and conventional – relay