DescriptionThe magnetic switch alarm is with durable zinc alloy housing for better rust resistance. Professional and practical design with beautiful appearance, lightweight, easy to carry and use. The product designed great for use in family and factory window, door. etc.Features- Color: Silver. - Material: Zinc alloy. - Size: 4.80 x 2.90 x 1.40cm/ 1.89 x 1.14 x 0.55 inch. - Working current: 0.5A. - Working voltage: 100V. - This contacts works with any access control or burglar alarm system available. - The product designed great for use in family and factory window, door. etc. - Nc means normally open, when the magnet separate, the circuit is conductive( light on ). - When the magnet together, the circuit is not conductive (light off). - 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).
