Eufy Security Entry Sensor White - Entry SensorProtect Your Doors and Windows from Break-Ins with eufy Security Entry Sensor. Once a window or door is ajar by 1.5 inch an alert will be sent to your smartphone and a 100-decibel siren will go off on the HomeBase (can be disabled). 2 Year Battery LifeOne CR-123A battery provides monitoring for 730 days. For Doors and; WindowsSmall and compact design fits onto any door or window frame. 100 Decibel SirenIf a forced entry is detected a siren as loud as a jackhammer will be triggered on HomeBase and you’ll be notified instantly on your smartphone. Easy InstallationJust peel off the mounting tape and stick the sensor onto the door or window you want to monitor.Note Requires a Homebase or Homebase 2 to function. What's in the Box . Entry SensorMagnetic BaseMounting ScrewsInstruction Manual and; Happy Card. .. 7.4 x 2.8 x 2.2 cm.security & smart alarms. 0% interest for 4 months Available on all purchases over £99. Terms and conditions apply. Subject to status. Looking for alternatives to stores like Amazon, Ebay, Currys, Very, Argos, Back Market, John Lewis, Ebuyer, AO, Dell, EE, Carphone Warehouse, HP, or Box? Discover our unique selection.