Csparkv - 2 Pack Freezer Door Alarm, 3/15/30/60 Seconds Window Security Alarm, Door Open Alarm with 4 in 1 Door Sensor

4 in 1 Mode: This alarm with 4 modes. 1. Time-out alarm (sounds 'Di-Di-Di' from 0dB to 108dB if the door is left open for 3/15/30/60s); 2. General alarm (alarm stops if the door is closed); 3. Constant alarm (alarms constantly even the door is closed); 4. Door opening chime (sounds "DingDong" once the door is opened) 108dB Loud Alarm: The door and window alarm helps to effectively deter intruders/thieves with a loud 108dB alarm. You can easily set the appropriate mode according to your needs. Easy to Install: Simple peel and stick installation, easy to install on most freezers/refrigerators or any door without any tools. Package including 2 x refrigerator alarms, 2 x magnetic strips, double-sided sticker, user manual. Installation Note: Please make sure to close the alarm and the magnetic strip, the installation distance between them should not exceed 0.78 inch. The 2 parts should be aligned by their alignment arrow. 2 x AA batteries can stay 2 years. (batteries are not included)