Quickly measure RPM, surface speed and length with one tool. Use the contact wheel for up-close readings or laser mode for safer, non-contact measurements up to 1.6ft (0.5m) away...
A device for indicating speed of rotation RPM Meter is an instrument measuring the rotation speed of a shaft or disk, as in a motor or other machine....
Features : \n \n 4 Digit seven segment LED display \n Wide range 10 RPM – 9999 RPM \n 3 to 30V DC Input Pulse from any type Sensor \n Allows Maximum 3.5 kHz Input Pulse Speed \n 12 V DC Sensor Supply \n Universal Supply Voltage 90 to 270V AC /...