Spirit-PIR is a wired indoor detector equipped with a passive dual pyroelectric element and Fresnel lens technology. This lens has 52 detection zones to ensure full coverage with no dead angle and no bottom approach. The maximum detection range is 18 m. Thanks to the advanced IFT technology, the detector automatically adjusts the alarm thresholds in the event of electromagnetic or electrical disturbances, minimizing the risk of false alarms. The functions of digital temperature compensation and automatic sensitivity allow the detector to adapt itself to changing environmental conditions in order to maintain the stability and effectiveness of intrusion detection. Additionally, the detector has immunity to small animals up to 10 kg, built-in end-of-line resistors, provides a wide viewing angle of 85.9 °, is protected against tampering with the enclosure opening, and meets the Grade II standard. DC 9 16V power supply. Sizes 86.8 x 65.4 x 45.5 mm.