CM Security Wireless Visitor Chime, 20m range, no warranty

Once set, any person or animal passing through the 3-meter sensor zone to the front of the unit will trigger the Chime or Alarm Siren so you can be sure no one will sneak in unnoticed. Use it to monitor your patio door if you leave it open in the summer for extra ventilation, or position one by your front or back doors, or even an open window – this versatile unit can be used virtually anywhere.

• Wireless entry alert chime that automatically announces visitors’ arrival and departure.
• Multiple uses to meet different needs, Ideal for shops, offices, homes, pre-schools, and reception areas.
• Place visitor chime beside door & when a visitor passes through a “ding dong” will automatically sound.
• The visitor chime operates on AAx2 batteries (batteries not included).
• Motion detection range: 2m
• Easy to installation.