Description:1.NC means Normally Closed:When the magnet together, the circuit is conductive( light on ); when the magnet separate, the circuit is not conductive ( light off ). When make order,please check carefully!2.These are the door contact sensors that are in use with any and all commercial or residential card access systems as well as all burglar alarm system.3.Work as an anti-theft alarm, perfect for metal door and window. Specification:Product Name: Magnetic Door SwitchModel: RC-33Contact Type: NC (Normally Closed)Max. Actuation Distance: 10mmMax. Current: 0.5AMax. Contact Power: 10WWorking Voltage: DC100VEach Size(Approx): 17 x 10.6mm / 0.67 x 0.42-inch (H*D)Cable Length(Each): 25cm / 9.
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It's very important, we need it. Therefore, make sure you need it before buying the product. You should receive the item within 2-4 weeks.
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MC-31B NC/NO Magnetic Door Switch - White. Door alarm sensors. Alarm systems.
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Type:Magnetically Actuated Safety Interlock Reed Switch 3NO. Condition: NEW - see photos. These sensors are new.
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There are two types of reed switches: "normally open" reed switches and "normally closed" reed switches. A normally closed reed switch is closed when not near a magnet; when a magnet approaches it, the normally closed switch will open.
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There are two types of reed switches: "normally open" reed switches and "normally closed" reed switches. A normally closed reed switch is closed when not near a magnet; when a magnet approaches it, the normally closed switch will open.
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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.
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Description:1.NC means Normally Closed:When the magnet together, the circuit is conductive( light on ); when the magnet separate, the circuit is not conductive ( light off ).When make order, check carefully!2.These are the door contact sensors that are in use with any and all commercial or residential card access systems as well as all security burglar alarm system.3.Work as an anti-theft alarm, perfect for metal door and window. Specification:Product Name: Magnetic Door SwitchModel: HC-34AContact Type: NC (Normally Closed)Actuation Distance: 10-15mmMax. Current: 0.3AMax. Contact Power: 3WWorking Voltage: DC28VSize(Approx): 14 x 6.5mm, 12 x 6mm(H*W) Cable Length(Each): 25cm / 9.
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