Features:

• Operates by means of a light sensor
• Powerful buzzer
• Modern design & compact
• Easy to use
• How it works:
  • switch the Frig Alarm on before placing it inside the refrigerator
  • after 30 seconds the Frig Alarm will beep when the door is not properly closed

  

Specifications

• Power supply: (3) 1.5v LR44 alkaline batteries (included)
• Dimensions: 5.7" x 2.2" x 2.2" (145 x 55 x 55mm)
• Weight: 2.25 oz (62g)