RB – 33 3/4″ Roller Ball Reed Contact (Normally Open)

This means, when the magnet is next to the contact (the door/window is closed), the circuit is open.  Each pack contains 10 contacts and magnets.

This 3/4″ roller reed ball contact uses a special compressed plastic ball to keep it dirt and paint resistant.

Features:

• Standard Size: 3/4″ x 1 5/8″
• Complete  with spacers and screws
• Thin end for easy installation
• De-activated Rhodium reed switch used
• 12″ leads std. Longer leads available
• White