Change Over Reed Switch

This is a non-contact magnetic switch.  When there is no magnet near the switch current flows through one wire.  When the magnet is near the switch, current flows through the other wire.  Small Magnet included.

Tutorial for this switch: 

 http://www.hacktronics.com/Tutorials/magnetic-proximity-sensor.html

Benefits:

• 2 part magnetically operated proximity sensor
• UL recognized
• Choice of normally open,normally closed or change over contacts
• Customer defined sensitivity
• Choice of cable length and connector Benefits
• Quick and easy to install
• No standby power requirement
• Operates through non-ferrous materials such as wood,plastic or aluminum
• Hermetically sealed,magnetically operated contacts continue to operate long after optical and other technologies fail due to contamination