Features:OOTDTY brand new and high qualityThe for shell is made of ABS material, which is wear-resistant and durable, and isn't clean to damage.Sealed design, dustproof and waterproof, even though the door is within the water, the desire now not be interrupted.Strong adsorption force, the magnet end is product of stable magnetic potting to make the extra sensitiveLight weight, smooth to install, solid concealment.Suitable for wood door/glass door/plastic door.Specifications:Material: PlasticLength: Approx. 64mm/2.51inch/DetectionDetection Distance: 20-30m/65.62-98.43ftTransmitting Frequency: 315/433mhzWorkingQuiescent Current: 0.5uaAlarm Current: 15maWorking Temperature: -10~60℃Package Includes:1 Set WindowNote:1.Please allow 1-2cm errors thanks to guide measurement, just be sure you do not intellect before you order.2.Due to the variation between assorted monitors, the image may not mirror the particular shade of the item.