["brand new and high quality\r\n\r\nFeatures:\r\nExquisite workmanship, high efficiency, stable working performance.\r\nPremium material ensures maximum strength and durability for long lasting usage.\r\nNormally open type: When the magnet and the reed switch are together, they are in the off state (NO).\r\nNormally closed type: When the magnet and the reed switch are together, they are in the on state (NC).\r\nUsed for Non-metal door/window for protection External power supply, connect to wired or wireless alarm control panel.\r\nMagnetic Switch only, other accessories demo in the picture are not included!\r\n\r\nTips:\r\n1. Please do not use the door magnet to directly power on, or power on the equipment (such as buzzer, small speaker).\r\n2. The power must not exceed 3W, otherwise the reed switch will be damaged.\r\n\r\nSpecification:\r\nModel: MC-31B\r\nMaterial: ABS\r\nPower Supply: for DC 100V/ 0.3A\r\nColor: White\r\nDimension: 55x12x11mm/ 2.17x0.47x0.43in\r\nQuantity: 1 Set\r\n\r\nNote:\r\n1.No retail package.\r\n2.Please allow 0-1cm error due to manual measurement. plz make sure you do not mind before you bid.\r\n3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!\r\n\r\nPackage includes:\r\n1 Set x Magnetic Switch"]