Wireless, Compact Glass Breakage Detector

SAFE Glass Guard

Glass Guard is a very small wireless glass break detector designed for securing glazed surfaces equipped with two NC inputs. Multi-factor glass break detection with the ability to remotely configure sensitivity significantly eliminates the occurrence of false alarms.

Thanks to the encrypted SAFE communication protocol, Keeper ensures secure connection with the central control unit of the SAFE security system at a distance of up to 1,600 meters in open space. The detector is powered by a replaceable battery that allows continuous operation for up to 3 years.

ParametersManualDatalist

Glass break detection up to 9 m

Radio signal range up to 1600 m

Cloud-based device firmware update

2x

2x input for connecting a wired external NC detector

Smart bracket for quick and easy installation

Security level 2 according to ČSN EN 50131

Data encryption with AES algorithm with floating code

Up to 3 years of battery life

Tamper protection against sabotage and unauthorized manipulation

Addition of a device to the system by scanning a QR code

Integrated temperature sensor

Bidirectional information transfer between devices

Protection against radio signal jamming

Easy installation of the device

Description of the Device

Reliable Protection of Glazed Surfaces

Glass Guard is a top-tier wireless detector that continuously monitors ambient sounds and is capable of reliably recognizing the breaking of various types of glass – from standard through tempered, wired, double-glazed, toughened to laminated. Its range reaches up to 9 meters, making it an ideal choice for securing even larger spaces with glass surfaces. Thanks to a highly sensitive audio microphone, the device is capable of precisely identifying specific low-frequency and high-frequency sounds that are characteristic of glass breaking. This technology simultaneously effectively eliminates disruptive sounds from the surroundings, thereby minimizing the risk of false alarms.

Two-stage Glass Break Detection Technology

Glass Guard features a highly sensitive omnidirectional microphone that i s 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.

Supports System Expandability

Glass Guard is equipped with two inputs that allow connection of external wired detectors. These inputs ensure easy integration of additional security elements, including devices from third-party manufacturers. In the ProSAFE app, individual inputs can be freely configured as NO (normally open), NC (normally closed), or Pulse. Connectable devices may include, for example, flammable gas detectors, armored garage door contacts, flood detectors, motion PIR sensors, and others. This feature significantly increases system flexibility and expands the modular capabilities of the SAFE security system.

Easy Installation and Convenient Setup

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.

Technical Specifications

Model Designation
  • SAFE 38120White version
    EAN code - 0728204234815
Interface
  • Indication1× Green LED
  • Button1× Power button
Functions
  • Sabotage ContactYes (tamper)
  • Remote UpdateYes (Cloud)
  • Temperature SensorYes
  • SearchSignal strength detection
  • Test ModeYes
  • Low Battery WarningYes
Wireless Transmission
  • Carrier Frequency868.0 MHz – 868.6 MHz
  • Transmitter Power (EIRP)Limit 25 mW
  • Communication TypeBidirectional
  • Communication DistanceUp to 1,600 m (5249.34 ft) in the open area
  • Encryption ModeAES128
  • Frequency HoppingYes
General
  • Power Supply1 × CR123A battery
  • Power ConsumptionMax. 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 Humidity10 % – 90 % (RH)
  • Product Dimensions107.8 mm × 34.5 mm × 24.8 mm (4.24" × 1.36" × 0.98") (L × W × H)
  • Package Dimensions140 mm x 95 mm 43 mm
  • InstallationOn a mounting panel
  • Weight (net)45 g (0.10 lb)
  • Weight (gross)138 g (0.30 lb)
  • Housing MaterialPC + ABS
  • CompatibilityHub 2 Plus LTE SAFE 38300
  • ComplianceCE
    Security level 2
    Environmental class II
  • Warranty36 months
Temperature Parameters
  • Measuring Range-15 °C to +65 °C (+18.8 °F to +149 °F) (indoors)
  • Measurement Accuracy±1 °C (± 33.8 °F)
  • Resolution1 °C (33.8 °F)
Detection Parameters
  • Detection TypeAcoustic
  • SensorHighly sensitive omnidirectional microphone
  • Detection RangeMax. 9 m (29.53 ft)
Inputs/Outputs
  • Alarm Input2× NC/NO potential-free (adjustable)