ARDUINO Accessory, Speed Sensor Module

Color Blue Material PCB Features Main chip: LM393; With output status indicator light, lower level, light on; High level, light off; Working voltage: 3.3~12V; Output format: 0 and 1 digit Application widely be used in dynamo speed detecting or Arduino DIY project Packing List 1 x Speed sensor module Dimensions: 1.50 in x 0.51 in x 0.47 in (3.8 cm x 1.3 cm x 1.2 cm) Weight: 0.18 oz (5 g)