Reed Switch Magnet Sensor Module
|+100 8 % $0.69|
|+300 11 % $0.67|
|+500 13 % $0.65|
|+1000 16 % $0.63|
Reed switch is a kind of passive electronic switching component with contacts with a simple structure, small size and easy to control. It consists of a sealed glass envelope where there are two ferrous elastic reeds and is filled with inert gas called rhodium. Normally, the two reeds are separated in the envelope. When a magnetic substance approaches to the glass envelope, the reeds will come together due to the magnetic field thus completing an electric circuit. When the external magnetic field disappears, two reeds will be separated because of their elasticity, the circuit is also disconnected. Therefore, as a circuit switching device controlled by magnetic field signals, reed switch can also be used as a sensor for counting and limiting, etc. ( applied in the security systems, mainly used for production of door and window magnets), and it is also widely used in a variety of communications devices. In practice, it is common to use the two permanent magnets to control connection of two metal sheets, thus it is also called a "magnetron.".
1, normally-open reed switch
2, the comparator outputs a signal clean, good waveform, driving ability, than 15mA.
3, the working voltage of 5V-3.3V
4, the output form: digital switching output (0 and 1)
5, a fixing bolt hole, easy installation
6, the small board PCB size: 3.2cm X 1.4cm
7, using a wide voltage LM393 comparator
1x Reed Switch Module