Melexis 90217 Hall-Effect Sensor #605-00005
This sensor can detect a magnetic field. By putting a magnet on a wheel, the rotation speed can be measured.
More information is available on the website of manufacturer
Parallax.
€ 3,96 (€ 4,71 incl.VAT)
3/8" Bias Magnet #605-00006
High strength and low cost magnet. The dimensions are 0.375 x 0.125 in (9.525 x 3.175 mm)
