GBD20 is a digital glass break detector. Entire process of glass braking is divided to four stages: flexing, cracking, shattering and falling of the glass. Each stage is analyzed in frequency range and as a time duration. Alarm will be generated only if three consecutive stages exist in incoming signal.
GBD20 has also an anti-masking function which generates alarm if a loud sound persist in the premise for more then a second.
GBD20 has automatic adjustment of all parameters and is fully compatible with any conventional alarm control panel.
Technical specifications:
| Power supply |
7V – 18V |
| Current consumption |
15 mA / 25 mA |
| Operating frequency |
2 kHz - 10 kHz |
| Output relay |
0.1 A @ 24 V DC |
| Microphone |
piezo-electric |
| Detection range |
7 m |
| Glass types |
wired, tempered, plated, laminated |
| Minimal glass size |
30 x 60 cm |
| Indication, LED |
Test mode / Pre-alarm / Alarm / Memory |
| Operating temperature |
-10°C/+50°C |
| Storage temperature |
-20°C/+60°C |
| Housing |
ABS plastic box |
| Dimensions |
88 x 62 x 21 mm |
| Others |
Tamper protection, AntiMasking, alarm event memory |