The EX-35 series breaks the mold of low cost, quality deficient detectors. You can select between precise wide angle and long range coverage, and also multi-level or pet alley detection patterns. By incorporating our patented multi-focus technology into the spherically designed lens, the EX-35 has successfully eliminated sensitivity problems caused by changes in detection patterns.General InformationName: Optex EX-35T Motion Sensor, Optex, Inc, OptexCategory: Optex, Intrusion & Smart Home, Space/Perimeter Protection, PIR Indoor Wall MountUPC Code: 788924081366Country of origin: China. Country of origin is subject to change.