RC-33 Magnetic Reed Switch NC Recessed Wired Window Door Contact Sensor for Home Security and Burglar Alarm Systems _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ Features: _x000D_ _x000D_ 1.Easy to use and easy to install _x000D_ _x000D_ 2.Stable performance and long service life _x000D_ _x000D_ 3.It is not easily broken and has characteristics such as compression resistance, impact resistance, and corrosion resistance _x000D_ _x000D_ 4.A switch mainly composed of two parts: a switch and a magnet. The door magnetic switch has a small size and is suitable for various door types _x000D_ _x000D_ 5.Wide range of use: suitable for installation and use of doors and windows in various fields such as urban security, banking, telecommunications, electricity, justice, residential areas, factories, companies, schools, homes, villas, warehouses, etc _x000D_ _x000D_ Product Principles: The door magnetic switch is mainly composed of two parts: a switch and a magnet. The switch part is connected by a magnetic spring switch through a lead wire and packaged in a fixed shape; The magnet part is encapsulated in a plastic or alloy shell by a magnet with corresponding magnetic field strength. When the two are separated or close to a certain distance, it causes the switch to open and senses changes in the position of the magnetic switch of the object door _x000D_ Parameters: Model: RC-33 Embedded Door Magnetic Switch Wired Door Magnetic Alarm High quality imported ABS, imported dry reed tube 1007 #/24 # 300mm UL wire Action distance: 12MM plus or minus 5MM Switching withstand voltage: DC100V Load current: 80mA Normally closed: When the magnet approaches, it is conductive, and when the magnet leaves, it is a circuit breaker. Normally open: When the magnet approaches, it is closed (circuit breaker), and when the magnet leaves, it is a circuit breaker Appearance size: The diameter of the magnet part is about 10X14mm, and the diameter of the switch part is about 10x18mm Installation method: Concealed installation on wooden doors and windows or aluminum alloy doors and windows Attention: If the door magnet needs to be powered on, the voltage should be controlled between DC0-24V, and the power supply current should not exceed 1A. The load current should not exceed 150mA _x000D_ Package include: Package 1: Door magnetic switch * 1 Package 2: Door Magnetic Switch * 5 _x000D_ _x000D_ _x000D_