- Install Small Magnetic Device On Window Or Door Frame With Adhesive Tape (included)
- Align The 2 Magnetic Parts Next To Each Other At The Arrow Sign
- When Door Or Window Opens And The 2 Magnets Separate - Alarm Sounds
- Loud 105 dB Alarm Will Ring For 20 Seconds - Automatic Shut Off - Batteries Included
- Low Battery Indicator, Fits Any Door or Window, Left And Right Side Magnet