The true RMS function increases the accuracy of AC signal measurements even with non-sinusoidal waveforms. Ideal for modern electrical installations and inverter-based equipment.
NCV enables quick indicative detection of the presence of voltage without connecting test leads, which speeds up work and increases safety when checking installations.
A practical design with a fold-out stand and a clip makes hands-free work easier – you can set the multimeter down stably or clip it securely while moving around the worksite.
The Uni-T UT139A digital multimeter is designed for electricians and technicians who need reliable measurement of voltage, current, and other electrical quantities. Thanks to true RMS, it delivers more accurate results even for non-sinusoidal waveforms, while NCV makes it easy to quickly check for the presence of voltage without direct contact.
The multimeter handles both standard and extended measurements and adds practical functions for comfortable work:
The UT139A offers a maximum displayed value of 2000 and falls into the CAT III 600 V safety category, making it a suitable choice for standard electrical work and service measurements.
