The UNI-T Mini Tachometer RPM Meter UT373 is a compact and reliable non-contact measuring instrument designed to accurately measure rotational speed (RPM) of motors, fans, shafts, and rotating machinery. Using laser technology, this tachometer allows safe RPM measurement without physical contact, making it ideal for industrial and maintenance applications. The UT373 digital tachometer features a clear LCD display that shows fast and precise RPM readings. Its lightweight and handheld design makes it easy to use in tight or hard-to-reach spaces. This device is widely used by technicians, engineers, and maintenance professionals for diagnosing machine performance and ensuring optimal operating speed. UNI-T is a globally trusted brand known for quality testing instruments, and the UT373 reflects durability, accuracy, and long service life. It is suitable for workshops, factories, HVAC systems, power plants, and educational labs across Pakistan. Easy to operate and highly accurate, the UNI-T UT373 mini tachometer is an essential tool for preventive maintenance and mechanical diagnostics. video Features: Auto range. Up to 99999 display; overload display, "OL". RPM measurement and revolution count. Max/Min, Data hold. Signal trigger/laser-on indication. Low battery/auto power-off indication. LCD backlight. Specifications: RPM measurement range: 10.0～9999.9 RPM ±(0.04%+2), 10000～99999 RPM ±(0.04%+2) RPM measurement resolution: 0.1 to 1 Counting measurement range: 0～99999 count Counting measurement resolution: 1 count (<10kHz, pulse width10 ~ 90%) Counting measurement accuracy: ±1 count Auto range: Yes Auto power off: Yes Low battery indication: Yes Laser-on indication: Yes Data hold: Yes Maximum/minimum: Yes Rotating speed/count function switching: Yes Overload indication: Yes LCD backlight: Yes Refresh rate: About 1s to 7s (depending on the speed, >120 rpm for 1s) Sensor type: Photodiodes and laser tubes Target distance: 50mm ~ 200mm Measuring angle: The angle between the laser and the surface being measured is less than 30° Display: 5-digit segment code; 99999 max display Drop test: 1m Working temperature and humidity: 0 ° C to 50 ° C (no more than 80%RH) Storage temperature and humidity: -20 ° C to + 60 ° C (no more than 80%RH) Protection rating: IP65 Power supply: 3 1.5V batteries (AAA) Battery life: Continuous work for 12 hours Product color: Red and grey Product weight: 85g (excluding battery) Product size: 183.8x56x34mm Uses: Motor and fan speed measurement Industrial machinery maintenance HVAC system diagnostics Workshop and factory testing Educational and training labs Package Include: 1 x UNI T Mini Tachometer RPM Meter UT373