uxcell N.C. Recessed Wired Security Window Door Contact Sensor Alarm Magnetic Reed Switch White RC-33 10pcs

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About this item [Specification] - Current: 0.5A ; Voltage: 100V ; Power Rating: 10W; Action Distance: 10mm [Dimension] - Cable Length: 25cm/9.8"; Total Size: 17mm x 10.6mm/0.67" x 0.42" (L*D) [Widely Usedl] - This Recessed Door Contact Sensor works with any access control or burglar alarm system available [Normally Closed] - 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 ). [Note] - the Magnetic Door Switch must be installed according to the sensing distance. It can only provide a switch signal to the transmitter. It cannot directly load the power, nor directly connect the lamp! Show more