Material:The magnetic switch alarm is with high quality zinc alloy housing for better rust resistance.
Waterproof: Magnetic Contact Switches is transmitted continuously in water.
Rated Power: 10W, Max Voltage: 100V, Max Current:0.5A
Transmitting Distance: 30-50mm
Product Sizes: 106*16*16mm (L * W * H);Cable Length: 25cm/9.8"
Contact Type:Normally Closed NC(N.C. means Normally Closed: When the magnet together, the circuit is conductive( light on ); when the magnet separates, the circuit is not conductive ( light off ). PLS CHECK CAREFULLY!
The Rolling Door Contact is designed for use with window and door alarm systems, such as garage, industrial warehouse and shops, etc.