UNI-T UT139B True RMS Digital Multimeter
The upgraded version of UNI-T's UT139A with additional functions.
A true RMS digital multimeter, the UT139B is a high accuracy DMM which can perform all basic measurements of electrical parameters with high precision even when testing on irregular waveforms. Extremely easy to use and perfect for everyone from electricians to technicians, the UT139B always generates reliable results.
It can be used to measure DC and AC voltage from 40mV to 600V, AC/DC current from 400μA to 10A, resistance from 400Ω to 40MΩ, capacitance from 9.999nF to 99.99mF and frequency from 10Hz to 10MHz. Built-in continuity and diode functions are also available.
This product is CAT III 600V rated.
Measure AC and DC voltage from 40mV to 600V
Measure AC/DC current from 400μA to 10A
Resistance measurements from 400Ω to 40MΩ
Capacitance measurements from 9.999nF to 99.99mF
Frequency measurements from 10Hz to 10MHz
4000 count backlit LCD display
Auto and manual ranging
True RMS digital multimeter
Duty cycle, diode and continuity testing
Non-contact voltage detector built-in
Low battery indicator
Automatically switches itself off after 15 minutes of inactivity
Data hold function temporarily stores the last value on the screen
MAX/MIN and relative modes
CAT III 600V rated
UNI-T UT139B Technical Specifications