USD29.99
 
Detection System: Magnetic Detection System (Hall IC)
                        Detection Range: 300rpm ~ 40,000rpm
                        Magnet Dimension : Ø 4mm x 2mm
                        Operating Voltage : 4.0v ~ 8.5v.
*Recommended range of distance between the sensor and magnets 3 to 5mm.
*Uses a non-contact rotation detection system that detects magnetism.
*Utilizes powerful samarium-cobalt magnets, which allow rotation to be detected even when the magnets are separated by a distance from the sensor unit to enable easy installation.