Aparat de masura multimetru digital UNI-T UT139E

Multimeter UNI-T UT139E
UT139E is a new professional multimeter with true RMS specification and CAT III 600V protection designed for the needs of electricians. The device meets cETLus certification and includes a number of extra features such as low impedance voltage (LoZ), non-contact Voltage Measurement (NCV), capacitance measurement for capacitors, or temperature Measurement. The 31-segment analog line ensures a better display of the measured values ​​and improved visual representation. The display readings are dark on a light background, unlike the UT139S, where the readings are bright on a dark background, otherwise the two are exactly the same. The display range is ± 9,999 for capacitance and frequency measurements and ± 5,999 for other measurements. Refresh rate 2 to 3 times per second. The fuses are protected by tube fuses (range 10A fuse FF 10A H / 600V (6 x 25mm); range mA / µA fuse FF 600mA H / 600V (6 x 32mm)). The multimeter is powered by two AA 1.5V alkaline batteries. The measuring range can be selected automatically or manually. The package includes measuring cables with tips, a thermal probe with a K-cell, and a battery.

UT139E is an ideal choice if you want a professionally equipped multimeter with a number of extra features that is also accurate, safe, easy to read and use.

Product parameters (multimeter function) :

- True RMS (the device measures the effective value of alternating current and voltage)
- AC voltage ranges measurement (AC) : 60 mV / 600 V
- AC current ranges measurement (AC) : 600 μA / 10 A
- DC voltage ranges measurement (DC) : 60 mV / 600 V
- DC current ranges measurement (DC) : 600 μA / 10 A
- Resistance ranges measurement : 600 Ω / 60 MΩ
- ranges Capacitor capacitance measurement : 9,999 nF / 99.99 mF
- Relative capacitance measurement mode (REL)
- Analog line
- Line continuity test (buzzer)
- Diode test
- Non-contact voltage measurement (NCV)
- AC variable frequency measurement (LPF VAC)
- AC low impedance measurement (LoZ VAC)
- Duty cycle (DCL)
- Automatic and manual range selection
- Detection of reversed polarity
- Data hold
- Display of minimum and maximum values
- Display backlight
- Automatic shutdown when idle
- Low battery indication
- Overload protection, fuse protected

Technical parameters :

- DC voltage measurement ( vstupní impedance podle rozsahu 3 až cca 10MΩ ) :
(range / resolution / accuracy )
60.00 mV / 0.01mV / ±0.7 % + 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 measurementí ( vstupní impedance cca 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
LPF 600.0 V / 0.1 V / ± 4.0 % + 3
LoZ 600.0 V / 0.1 V / ± 2.0 % + 10


- 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 :
( range / resolution / accuracy )
9.999 nF / 0.001 nF / při REL módu ± 4 % + 10
99.99 nF až 999.9 µF / 0.01 nF až 0.1 µF / ± 4 % + 10
9.999 mF až 99.99 mF / 0.001 mF až 0.01 mF / ± 10 %


- Frequency and duty cycle measurement :
( range / resolution / accuracy )
9.999 Hz až 9.999 MHz / 0.001 Hz až 0.001 MHz / ± 0.1 % + 4
0.1 % až 99.9 % / 0.1 % / Pouze referenční


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


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

- With the thermostatic probe (cell type K), only temperatures up to 250°C / 482°F

- Display type : LCD TN
- Display diagonal : 68 mm
- Sampling frequency : 3 / s
- Number of digits : 6000
- Analog line : 31 segments
- Multimeter dimensions : 170 x 80 x 48 mm
- Power supply : 2 x AA 1.5 V battery (included)
- Thermal probe with type K (included)
- Test leads with tips (included)
- Fuse F1 : 6 x 32 mm FF 600 mA H 600 V (installed)
- Fuse F2 : 6 x 25 mm FF 10 A H 600 V (installed)
- Fall resistance : 1 m
- Weight : approx. 354 g (including batteries)
- Operating temperature : - 10 to 50°C
- The device meets following standards :
cETLus, CAT III 600V, double insulation, 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
Complies with UL STD standards: 61010-1, 61010-2-030
Certified by CSA STD. C22.2 No. 61010-1, 61010-2-030, 61010-2-033

Manufacturer: UNI-TREND

Package contents :

- multimeter UT139E with impact plastic cover
- 2 x AA 1.5 V batteries
- F1 fuse: 6 x 32mm FF 600mA H 600V (in device)
- F2 Fuse: 6 x 25mm FF 10A H 600V (in device)
- thermo probe with cell type K (included)
- test leads with spikes (included)
- instructions for use in Czech, Slovak and English