- Working Voltage : 3.3V~5VApplication : Approx.3.2 x 1.4 x 0.7cmApplication : Widely used in dynamo speed detecting, pulse counting, etcOutput form Digital switch output (0 and 1) and Analog for Sensitivity.Dimensions 32 x 14 x 7mm.Small board PCB size 3.2 cm x 1.4 cm.Weight 8G