[Specification] - Type: Normally Open (NO) Normally Closed (NC); Max Sensing Distance: 10mm; Cable Length: 30cm/ 11.8"; Total Size: 29x15.35mm/ 11.42" x 6.04" (L*W); Max. Current: 0.5A; Max. Voltage: 100V; Max. Power: 10W[Installation Dimension] - Installation Hole Size: 8x4mm; Installation Hole Distance: 15mm[Durable Material] - The magnetic switch alarm is with durable PVC housing for better rust resistance[Normally Open] - 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 ).
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