DescriptionThe Magnetic Contact Switch is with durable PVC housing for better rust resistance. Designed for use with window and door alarm systems, such as the garage, industrial warehouse, and shops, etc. NC means Normally Closed: When the magnet together, the circuit is conductive( light on ); when the magnet separates, the circuit is not conductive ( light off ). NO means Normally Open: when the magnet separates, the circuit is conductive( light on ); When the magnet together, the circuit is not conductive ( light off ). Please check the right need carefully before purchasing it!SpecificationType: Normally Open (NO) Normally Closed (NC)Max. Current: 0.5AMax. Voltage: 100VMax. Power: 10WInstallation Hole Size: 8x4mmInstallation Hole Distance: 15mmMax Sensing Distance: 10mmCable Length: 30cm/ 11.8"Total Size: 29x15.35mm/ 11.42" x 6.04" (L*W)Package Content:3 Pcs x Magnetic Door Switch
