Dimensions93mm(h) x 24mm(w) x 25mm(d)Dimensions74mm(h) x 48mm(w) x 18.5mm(d) VIBRO is an intelligent, microprocessor-controlled shock sensorsuitable for a variety of internal applications. The unit is easy to install, featuring a unique Learn Modeђ function, which automatically sets the sensitivity by learningђ the level andnumber of impacts required to generate an alarm. Multiple impacts can be overridden using the Gross Attackђ feature, which enables VIBRO to create an alarm from a single impact. The unit has a wide dynamic range allowing it to be calibrated tosuit quiet or noisy environments and a non-volatile memory retains all the programmed settings should the supply voltage be removed and subsequently restored. The GX-252T is a microprocessor-based glassbreak detectorutilising dual frequency analysis to detect the common sounds of shattering glass and acoustical shock when a window is broken. The sensor only activates when specific frequency patterns continuefor a fixed time period, making it highly immune to false alarms. The GX-252T protects 3mm (1/8") plate glass and 6mm (1/4")plate, tempered and laminated glass at a range of up to 7.6m. > Learn Modeђ automatic sensitivity setting > ՑTest Mode to ensure detector is within range of glass at installation > ՑGross Attack feature > Selectable Alarm Memory > Selectable walk test > Auto ՑSelf-Test on start-up > Also available in brown > 7.6m (MAX.)7.6m (MAX.)7.6m (MAX.) 11.5 18.0V DC20 ֖ 30 mA 0C +55аC60g Alarm Output 9.0 16.0V DC Quiescent: 16.5 mA at 12V DC -20ְC +50C35g N.C./N.O. Alarm Output supervised relay output24V, 1.0A (max.) Alarm: N.C. 15.8 mA at 12V DC 24V, 150mA resistive