Multimeter UNI-T UT139C

Product detailed description

Multimeter UNI-T UT139C
We offer a 3-year warranty on this product.

The UNI-T UT139C multimeter is a new professional multimeter with True RMS classification and CAT III 600V protection, designed to meet the needs of electricians for the measurement of LV distribution networks in buildings. The innovative and industrial design with protective housing guarantees the multimeter's impact resistance. The instrument includes a number of superior functions such as low impedance voltage measurement (LoZ) (for UT139E + UT139S variant), variable frequency voltage measurement (VFC) (for UT139E + UT139S variant), non-contact voltage measurement (NCV), capacitor capacitance measurement, frequency ratio measurement, or even temperature measurement. The large and clear LCD TN backlit display ensures a perfect display of the measured values. The display display range is ± 6,000, for capacitance and frequency 9999. Refresh rate 2 to 3 times per second. Fusing of current ranges is performed by tubular fuses (10A range by FF 10A H/600V fuse (6 x 25mm); mA/µA range by FF 600mA H/600V fuse (6 x 32mm)). The power supply of the multimeter is provided by two AA 1.5 alkaline batteries. The range of measurement quantities can be selected automatically, also manually. Included in the package are measuring cables with tips, thermo probe with K-cell and also batteries.

The UT139C is the ideal choice if you want a professionally equipped multimeter with a range of superior features that is also accurate, clear, safe and very easy to use.

Product parameters (multimeter function):

- true RMS measurement (the instrument measures the effective value of AC current and voltage)
- aC voltage measurement range (AC 45Hz to 1kHz) : 60mV/600V
- aC current measurement range (AC 45Hz to 1kHz) : 600 uA/10 A
- dC voltage measurement range (DC) : 60 mV / 600 V
- dC current measurement range (DC) : 600 uA/10 A
- resistance measurement range : 600 Ω/60 MOhm
- capacitor capacitance measurement range : 9.999 nF / 99.99 mF
- relative Mode Capacitance (REL) measurement
- possibility of connecting optional clamps for measuring currents up to 60A AC/DC
- wiring continuity test (buzzer)
- test of diodes and semiconductor transitions at 3.2V
- non-contact voltage measurement (NCV)
- measurement of alternation (DCL)
- automatic and manual range selection
- reverse polarity detection
- data hold function
- minimum and maximum value display
- display backlight
- automatic shutdown when idle
- low battery indication
- overload protection, fuse protection

Technical parameters :
- DC voltage measurement ( input impedance according to range 3 to approx. 10MΩ ) :
       ( range / resolution / accuracy )
60.00 mV / 0.01mV / ±0.5% + 3
600.0 mV / 0.1 mV / ± 0.5 % + 2
6.000 V / 1 mV / ± 0.7 % + 3
60.00 V / 0.01 V / ± 0.7 % + 3
600.0 V / 0.1 V / ± 0.7 % + 3


- AC voltage measurement ( input impedance approx. 10MΩ ) :
( range / resolution / accuracy )
60.00 mV / 0.01 mV / ± 1.0 % + 3
600.0 mV / 0.1 mV / ± 1.0 % + 3
6.000 V / 0.001 V / ± 0.8% + 3
60.00 V / 0.01 V / ± 0.8% + 3
600.0 V / 0.1 V / ± 0.8 % + 3
VFC 200 to 600.0 V / 0.1 V / ± 4.0% + 3

- DC current measurement :
( range / resolution / accuracy )
600.0 μA / 0.1 μA / ± 0.7 % + 2
6000 μA / 1 μA / ± 0.7% + 2
60.00 mA / 0.01 mA / ± 0.7 % + 2
600.0 mA / 0.1 mA / ± 0.7 % + 2
6.000 A / 0.001 A / ± 1.0 % + 3
10.00 A / 0.01 A / ± 1.0 % + 3


- AC current measurement :
( range / resolution / accuracy )
600.0 μA / 0.1 μA / ± 1.0 % + 3
6000 μA / 1 μA / ± 1.0% + 3
60.00 mA / 0.01 mA / ± 1.0 % + 3
600.0 mA / 0.1 mA / ± 1.0 % + 3
6.000 A / 0.001 A / ± 1.2 % + 3
10.00 A / 0.01 A / ± 1.2 % + 3


- Resistance measurement :
( range / resolution / accuracy )
600.0 Ω / 0.1 Ω / ± 1.0 % + 2
6.000 kΩ / 0.001 kΩ / ± 0.8% + 2
60.00 kΩ / 0.01 kΩ / ± 0.8% + 2
600.0 kΩ / 0.1 kΩ / ± 0.8% + 2
6.000 MΩ / 0.001 MΩ / ± 1.2% + 3
60.00 MΩ / 0.01 MΩ / ± 1.5% + 5


- Capacitance measurement of capacitors :
( range / resolution / accuracy )
9.999 nF / 0.001 nF / in REL mode ± 4% + 10
99.99 nF to 999.9 µF / 0.01 nF to 0.1 µF / ±4% + 10
9.999 mF to 99.99 mF / 0.001 mF to 0.01 mF / ±10%


- Measurement of frequency and alternans :
( range / resolution / accuracy )
9.999 Hz to 9.999 MHz / 0.001 Hz to 0.001 MHz / ± 0.1% + 4
0.1% to 99.9% / 0.1% / reference only


- Temperature measurement in °C :
( range/resolution/accuracy)
- 40 to 40°C / 1°C / ± 4
> 40 to 500°C / 1°C / ± 1.0% + 4
> 500 to 1000°C / 1°C / ± 2.0% + 4


- Temperature measurement in °F :
( range / resolution / accuracy )
- 40 to 104°F / 1°F / ±5
> 104 to 932°F / 1°F / ± 1.5% + 5
> 932 to 1832°F / 1°F / ± 2.5% + 5

Only temperatures up to a maximum of 230°C can be measured with the included thermocouple probe (type K cell)

- display type : LCD TN
- display diagonal : 68 mm
- sampling rate : 3 / s
- number of digits : 6000
- power supply : 2 x AA 1.5 V batteries
- dimensions of the instrument : 170 x 80 x 48 mm
- drop resistance : 1 m
- weight : approx. 354 g (including batteries)
- working temperature : - 10 to 50 °C
- the instrument meets the standards :
      cETLus, CAT III 600V, double insulated, overload protection 600V-PTC, pollution class II
     EN 61326-1:2013; EN 61326-2-2:2013
     EN 61010-1:2010; EN 61010-2-030:2010; EN 61010-2-033:2012
      Conforms to UL STD .:61010-1, 61010-2-030
      Certified by CSA STD. C22.2 Nos. 61010-1, 61010-2-030, 61010-2-033


Contents of the package :

- multimeter UT139C with anti-shock plastic case
- batteries 2 x AA 1.5 V
- fuse F1 : 6 x 32 mm FF 600 mA H 600 V (in instrument)
- fuse F2 : 6 x 25 mm FF 10 A H 600 V (in instrument)
- k-cell thermocouple probe (included)
- test leads with spikes (included)
- instructions for use Czech, Slovak and English


- Manufacturer : UNI-TREND
- www.uni-t.cz