Volumetrics are in a way the eyes and ears of your alarm system. There are several different detection techniques: Passive infrared detector (PIR): this type of detector senses all warm body movements. The detector transmit infrared rays and triggers the alarm when one or more of these beams are broken. The double technology detector designed for the protection of houses where there are pets is provided with PIR sensors (pyroelectric double element). It is protected against the polarity inversion by LEDs. The selection among minisensor is indicated by LED and the NC anti tamper contact requires 30Vdc ,50mA max. One or two selection by minisensor is necessary for the pulse counting. This infrared operates at a temperature situated between –20° and +60°C. The digital temperature compensation is made automatically. It is protected by an ABS box in case of fire. Available in 3 versions: IRA11 for pets of less than 11Kg IRA23 for pets of less than 23Kg

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