SOFT ALARMS - Alert after 1 minute (for 2 seconds), a second alarm after 2 minutes (for 4 seconds) when the fridge door is still open or ajar. CONTINUOUS ALARM - Alert after 3 minutes (stay 60 seconds) will help you close the fridge or freezer door in normal situations. LOUD SIREN - Loud Mode includes an additional 110dB Siren every 4 minutes (stay 20 seconds), activate using SET Button (4 beeps confirmation). FOUR MODES - Low (80dB), Medium (85dB), Normal (90dB with a beep every 10s), Loud (95dB, with a beep every 10s and a 110db Siren every 4 minutes). EASY TO USE - FRIDGGI emits a low volume beep when you exceed the allowed gap between the Alarm and the mini sensor; open/close the door to check before peeling the double-sided tape.