ALGORITHM 

Unique algorithm is based on recognition of sequence of low-frequency  
and high-frequency signals of framed pane glass breakage.

Low-frequency signal is emitted upon the impact of glass. High-frequency signal occurs upon the glass breakage.

For creating an alarm, both a low-frequency sound of the glass impact and a high-frequency glass breakage 
sound must be registered within a predetermined time frame.

Since both detector channels must register the actual glass breakage, false alarms are practically excluded.

The program of microcontroller, based on the mathematical algorithm, analyzes signals and detects only 
the actual breakage of all standard framed glass types.

RELIABILITY

Due to the unique program and perfectly adjusted filters the PATROL-501 provides excellent protection from false alarms in extremely harsh environments. Highly selective sensitivity of the high frequency channel enables the PATROL-501 to detect real glass breakage with high accuracy among a variety of background noises.

The above features enable the PATROL-501 to be used in extremely harsh environments, such as airports, industrial plants as well as in the vicinity of noisy restaurants, bars, etc. High RFI and EMI immunity allows the detector to be mounted next to radio and electromagnetic emission sources.


                             THE PATROL-501: PROFESSIONAL AND RELIABLE
THE PATROL-501: THE BEST SOLUTION TO GLASS PROTECTION IN A SECURITY AREA

TECHNICAL SPECIFICATIONS 

Power input:.............................................................9 - 16VDC;
Current consumption: 
In stand-by mode:.........................................................17.8mA; 
In alarm mode with LED on:...........................................18.7mA;
Alarm period:....................................................................3sec;
Warm up period:...............................................................2sec; 
Detection range:......................................................12m x 170º;
Relay output:..........................................NC; 60V; 120mA; 16Ω;
Opening protection:.......................................TAMPER SWITCH;
Microphone type:.................Omnidirectional Electret Microphone;
Operating temperature range:..................................-30ºC +50ºC; 
Storage temperature range:.....................................-40ºC +80ºC;
RFI immunity:......30V/m at a frequency range 10MHz - 1000MHz;
EMI immunity:..............................................................50000V;
Dimensions:..........................................87mm x 52mm x 24mm; 
Weight:.............................................................................58gr.