Reed module, 4 pcs/set Sensor Magnetic Switch Module Diy Kit Normally Open Electrical & Electronic

【Passive electronic switch】 --Reed spring short circuit, is a passive electronic switch contact component, with a simple structure, small size, easy to control and so on. 【Usage principle】-- Generally, two glass tubes made of special material reeds are separated. When the magnetic substance is close to the glass tube, under the action of the magnetic field lines, the two reed tubes are magnetized and attract the contacts to each other, and the reeds will be pulled together, so that the circuit of the connection node communicates. After the external magnetic force disappears. 【Compatibility】-- As a for controlling the magnetic field line switching device, the reed can be used as a counter, and it is also widely used in various communication devices. 【High-quality reed module】--The imported normally open reed comparator output is clean, the waveform is good, and the driving capacity is greater than 15mA. The output form is a digital switch output (0 and 1) with fixed bolt holes. The PCB board is small in size for easy installation. 【Application】-- Application: SPC exchange, copy machine, washing machines, refrigerators, camera, disinfect cupboard, door magnetic, magnetic window, electromagnetic relays, electronic weighing apparatus, level meter, gas meter, water meter.