The Glass Guard is a very small wireless glass shatter detector designed to secure glass surfaces with two NC inputs. The multi-factor glass shatter detection with remote sensitivity configuration significantly eliminates the occurrence of false alarms. Thanks to the encrypted SAFEKeeper communication protocol, it provides a secure connection to the central control unit of the ProSAFE alarm system up to a distance of 1,600 metres in open areas. The detector is powered by a replaceable battery that allows continuous operation for up to 3 years.
Glass Guard is top of the line wireless detector that continuously monitors ambient sounds and can reliably detect the breakage of various types of glass - from classic to tempered, wire, double glazed, toughened and laminated. Its range is up to 9 metres, making it the ideal choice for securing even larger areas with glass surfaces. Thanks to the high-sensitivity audio microphone the device is capable of accurately identifying specific low and high frequency sounds that are characteristic of glass breakage. This technology also effectively eliminates disturbing ambient sounds, minimising the risk of false alarms.
Glass Guard features a highly sensitive omnidirectional microphone that is designed to reliably detect acoustic signals in two steps. First, it detects the characteristic sound of glass impact (low frequency signal) and then the sound of glass breaking and shattering (high frequency signal). The alarm is only triggered if both signals are detected simultaneously. Thanks to the advanced two-stage glass break detection technology, Glass Guard is resistant to false alarms - for example, when simply tapping on a glass door panel.
Glass Guard is equipped with two inputsthat allow connection of external wired detectors.These inputs provide easy integration of additional security features, including third-party devices. Individual inputs can be freely configured in ProSAFE as NO (normally open), NC (normally closed) or Pulse. Connectable devices can include, for example, combustible gas detectors, armored garage door contacts, flood detectors, PIR motion sensors and more. This feature greatly increases system flexibility and expands the modular capabilities of the ProSAFE alarm system.
The glass splinter detector should be placed in a room where there are glass surfaces, such as windows or glass doors. It is important that it is correctly oriented and has an unobstructed view of the protected glass surfaces. The Glass Guard is equipped with a tamper function that protects the device from sabotage or tampering. Adding the detector to the system is extremely simple thanks to the ProSAFE app - just scan the device's unique QR code and then set the required functions. Within moments, everything is ready and your device can start working reliably.
| SAFE 38120 | White version EAN code - 0728204234815 |
| Indication | 1× Green LED |
| Button | 1× Power button |
| Sabotage Contact | Yes (tamper) |
| Remote Update | Yes (Cloud) |
| Temperature Sensor | Yes |
| Search | Signal strength detection |
| Test Mode | Yes |
| Low Battery Warning | Yes |
| Carrier Frequency | 868.0 MHz – 868.6 MHz |
| Transmitter Power (EIRP) | Limit 25 mW |
| Communication Distance | Up to 1,600 m (5249.34 ft) in the open |
| Communication Type | Bidirectional |
| Encryption Mode | AES128 |
| Frequency Hopping | Yes |
| Power Supply | 1 × CR123A battery |
| Power Consumption | Max. 150 mW |
| Current Consumption | ≤45 μA (operation) / ≤50 mA (alarm) |
| Battery Life | 3 years (ext. input NO) 1 year (ext. input NC, both inputs allowed) |
| Operating Temperature | -10 °C to +55 °C (+14 °F to +131 °F) (indoors) |
| Operating Humidity | 10 % to 90 % (RH) |
| Product Dimensions | 107.8 mm × 34.5 mm × 24.8 mm (4.24" × 1.36" × 0.98") (L × W × H) |
| Package Dimensions | 95 mm × 43 mm × 139 mm (3.74" × 1.69" × 5.47") (L × W × H) |
| Installation | On a mounting panel |
| Weight (net) | 45 g (0.10 lb) |
| Weight (gross) | 130 g (0.29 lb) |
| Housing Material | PC + ABS |
| Compatibility | Hub 2 Plus LTE SAFE 38300 |
| Compliance | CE |
| Warranty | 36 months |
| Measuring Range | -15 °C to +65 °C (+18.8 °F to +149 °F) (indoors) |
| Measurement Accuracy | ±1 °C (± 33.8 °F) |
| Resolution | 1 °C (33.8 °F) |
| Detection Type | Acoustic |
| Sensor | Highly sensitive omnidirectional microphone |
| Detection Range | Max. 9 m (29.53 ft) |
| Alarm Input | 2× NC/NO potential-free (adjustable) |
