Black Measure RPM Guage For Industral Tachometer❀

Feature: \n 1. Adopting advanced technologies to achieve contact or non-contact measurement of rotation speed and line speed.\n2. Speed sensor with groove measures speed and length of wire, cable and rope conveniently.\n3. Automatically store max value, min value and the last measurement value.\n4. Contact accessory and photoelectric accessory can be converted mutually at any time to achieve multi-purpose use.\u200B\n5. Automatically prompt when the voltage of power supply voltage is lower than the specified value.\u200B \n\nSpecification: \n\nThis item adopts the microcomputer (CPU) technique and junction\n technique for one instrument which combines Photo Tach (RPM) and Contact\nTach (RPM, m/min). \n\nFeatures: \n\n1. Adopting advanced technologies to achieve contact or non-contact\nmeasurement of rotation speed and line speed. \n\n2. Speed sensor with groove measures\nspeed and length of wire, cable and rope\nconveniently. \n\n3. Automatically store max value, min value and: