Kerui Wireless Indoor Motion Sensor Door Bell Shop Visitor Alert Chime Alarm Burglar For Business When Entering Door Opens

Attention: 1, Please Use Good Quality Alkaline Batteries, Avoid Using Less Electricity And Electrolyte Leakage Ordinary Carbon Battery 2, Non-Professional Workers Do Not Repair Without Authorization 3, Please Avoid The Product Installed In The Rain,With Long Time Direct Sunshine,Strong Magnetic,Heavy Cold And Hot Air Place Feature: Power Safe Design, Triple Functions 32 Songs Computer Optional Led Indicator Light Large Range Of Infrared Set Up And Adjust 1,Sound Adjustment:4 Level Of Adjustable Sound Volume,Press The Button And Adjust1-2-3-4-3-2-1 , But Volume Of The Alarm Sound Is Not Adjustable 2,Choosing Music:32 Beautiful Songs ,Press The Music Key To Choose ,To Return To Dingdong After Restart Or Close 3,Mode Choice: Voice :Play Dingdong ,Hello,Welcome Alarm: Play Alarming Music:32 Beautiful Songs To Choose Technical Parameter: 1,Working Current:80Ma 3,Detection Range:4-6M(25) 4,Detection Angle:110 5,Installation Height :15M-25M 6,Battery Installation Schematic Diagram:Pull The Switch Battery Cover,Open The Battery Cover Installed Correctly,Press The Key Of Battery Switch ,Finish The Installation Package Included: 1 X Motion Detector Entry Door Bell Wireless Infrared Pir Chime Sensor Alarm