The UNI-T UT373 Mini Tachometer is a reliable and portable device designed for non-contact RPM measurement, making it perfect for applications involving motors and other rotating machinery. It features a 5-digit LCD display, supports measurement up to 99,999 RPM, and offers features such as MAX/MIN recording, data hold, and low battery indication. With its laser sensor, it provides accurate and safe measurements from a distance, making it essential for maintenance and diagnostic tasks in various industries.