Features 1、Photoelectric vibration sensor with adjustable sensitivity. 2、With micro‑processing controller to reduce false positives. 3、Low power consumption, tampering function, alarm indication 4、Small size, convenient in use, elegant style, perfect decoration. 5、Flexible installation, widely applicable to almost all environments. Specification Features: Photoelectric vibration sensor with adjustable sensitivity. With micro-processing controller to reduce false positives. Low power consumption, tampering function, alarm indication Small size, convenient in use, elegant style, perfect decoration. Flexible installation, widely applicable to almost all environments. Specifications: Condition: Brand New Material: ABS Color: White Working Current: 15mA Alarm Contact: NC, 12V DC, 15mA Maximum Tamper Contact: NC, 12V DC, 15mA Maximum Alarm Time: 2.2s/min Warm-up Time: 1 minute RFI: 25V/m, 10Mhz~1Ghz Operating Temperature: -20°C~50°C Storage Temperature: -20°C~50°C Size: Approx. 83 x 24 x 24mm/3.3 x 0.9 x 0.9in Package Weight: Approx.36g/1.3oz Package List: 1 x Detector 1 x User Manual Package List 1 x Detector 1 x User Manual