Sort by popularity Sort by average rating Sort by latest Sort by price: low to high Sort by price: high to low View: 12 24 All Add to Wishlist Add to Wishlist Add to cart Add to Wishlist Add to Wishlist Sensor ModuleInfrared Speed Sensor Module RM2.00 This is a sensor you can use with Arduino to measure the speed of motor coupled with encoder disk by rate of interruption of optical light, act as a contactless tachometer.