This sensor is essentially a reed switch, encased in an ABS plastic shell. Normally the reed is ‘open’ (no connection between the two wires). The other half is a magnet. When the magnet is less than 13mm (0.5″) away, the reed switch closes. They’re often used to detect when a door or drawer is open, which is why they have mounting tabs and screws. But these also have a sticky-foam-tape back so you can also place them in locations you cant attach with screws. Technical details Normally open reed switch ABS enclosure Rated current: 100 mA max Rated voltage: 200 VDC max Distance: 15mm max Dimensions: Box size (each side): 27mmx14mmx8.7mm (1inx0.55inx0.34in) Cable Length: 25cm (10in) Weight (per side): 5.2g (0.18oz) Related
