FIELD: physics.
SUBSTANCE: portable alarm contains a control unit, designed to fix on the arm at least one permanently installed sensor that is connected to the control unit, an informer about the triggering of sensors connected to the control unit, an informer of third parties also connected to the control unit, at least one of the sensors included in the control unit group containing doorbell, bell or mobile phone ring sensor, water/natural gas flow sensor, smoke/fire sensor, door open/open sensor, sensor volume, temperature sensor in different ranges, incl. infrared, distance measuring sensor, sensing device, pressure sensor, motion sensor.
EFFECT: improving the security of protected premises.
15 cl
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