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| Specifications | |
| Manufacturer | Visonic |
| Manufacturer Product No. | GFD-30 or GFD-30 0-1893-0 |
| UPC | 780245189301 |
| Acoustical Detection Range | Up to 50 feet (15 meters) radius (adjustable- varies with room shape, acoustics, temperature and humidity |
| Coverage Area | Up to 5,000 Square feet (500 square meters) |
| Cutoff Frequency | 5 kHz (nominal) |
| Microphone | Electrical Condenser |
| Electrical Voltage | 9V DC - 16V DC (protected against reverse polarity) |
| Current | 20mA |
| Relay Output |
|
| Alarm Period | 2.3 Seconds |
| Indicators |
|
| Testing | Built-in testet with ambient noise monitoring ("DET" LED) |
| Operating Temperature | 14° F to 122° F (-10° C to 50° C) |
| Storage Temperature | -4° F to 140° F (-20° C to 60° C) |
| Dimensions | 5.0" x 3.3" x 1.5" (125mm x 85mm x 39mm) |
| Weight | 6.3 oz (180g) |
| Color | White |
