<p> And High Quality</p> <p>Single beam infrared radiation: suitable for anti-theft such as doors and windows, box, fence and so on. Small size, big effect</p> <p>Sealed shell, stronger waterproof: Thanks to the good waterproof design, it can effectively cope with all kinds of bad weather, so that the internal components are not eroded by rain</p> <p>Detection distance 20m: Install to ensure that the emitter and the receiver are on the same horizontal line</p> <p>Stable and reliable anti-interference: using hemispherical optical lens, the beam is concentrated, precise and non-scattering, and the automatic strong light adjustment system can effectively avoid the interference of strong light and car headlights</p> <p>Specifications</p> <p>Light source mode: infrared pulse type</p> <p>Detection method: Beam interruption pick-up type</p> <p>Package Include:1 Pair X Alarm Sensor</p> <p>Note:</p> <p>Due to different personal measurement methods, there will be an error of 2-4 cm, please understand</p> <p>Thanks for your support</p>