Introduction
This manual provides detailed operating instructions for the UNI-T UT139A/B/C series of True RMS Digital Multimeters. These versatile instruments are designed for accurate AC/DC voltage and current measurements, resistance, diode testing, circuit continuity, capacitance, frequency, and non-contact AC voltage sensing (NCV). The manual covers essential information including an overview of the product, accessories, safety operation regulations, electric symbols, comprehensive specifications, appearance structure, LCD display functions, range selection, measurement instructions, technical index, and upkeep/maintenance procedures.
The UT139 series multimeters are suitable for a wide range of applications in electrical and electronic maintenance, offering reliability and ease of use. For detailed specifications and operational guidance, please refer to the respective sections within this document.
Key Features
- True RMS measurement for accurate readings
- Auto and manual ranging capabilities
- Large LCD display for clear visibility
- NCV (Non-Contact AC Voltage Sensing) function
- Safety features compliant with IEC/EN61010-1 standards
Resources
For more information about UNI-T products, please visit the official website: UNI-T Official Website
