Volumetric wire infrared detector dual technology with Fresnel lens, managed via microprocessor, for indoor installation in doors, perimetric walls, and so on.

Dual technology sensors have two types of detections: infrared and microwave.
Alarm is generated only if both technology are activated, with consequently less false alarms.
SVFM-B has been developed with a temperature auto-compensation technology, wich executes a continuous temperature analysis, keeping itself on average to avoid false alarms.
It embeds a impulses counter device to adjust the sensiblity of the intruder detection and it includes a system to show the protected zone (walk test) during the installation.
Alarm signal transmission can be instantaneous or delayed and after an alarm sensor blocks next transmissions for 3 minutes.