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Key Features
UT139 Series digital multimeters are newly designed to offer users better performance and higher safety rating. Totally over-load protection and unique structural design make it new type of multimeter with high performance/ price ratio and a best choice for electricians used in electrical maintenance and repairing.
1.True RMS for the whole series;
2.Measure signals with varied frequency (VFC);
3.Measure large capacitance up to 100mF;
4.Optional AC/DC 60A current clamps in different models tomeasure current up to 60A(1mv=1A);
5.NCV designed for the whole series, a necessity for electricians;
6.AA1.5V*2(5#) battery, easy for users to purchase and replace;
7.Soft rubber holster is easy to stand 2m drop;
8.Optional magnetic hanging strap offered to facilitate tests in special location;
9.Fast to replace fuse, just by opening battery cover;
10.Reliable with use of internal 2PCS fuses with high-breaking capacity;
11.Protection against 600V input/1 minute from misconnection;
12.Safety Rating: CAT III 600V.

An ideal tool for equipment testing, maintenance and repair widely needed in electronics, electric power, schools, metallurgy, communications, manufacturing, petroleum, national defense, chemical industry, etc.

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Specifications Range Best Accuracy
Model UT139B
DC Voltage (V) 40mV/400mV/4V/40V/400V/600V ±(0.5%+2)
AC Voltage (V) 40mV/400mV/4V/40V/400V/600V ±(0.8%+3)
DC Current (A) 400μA/4000μA/40mA/400mA/4A/10A ± (0.7%+2)
AC Current (A) 400μA/4000μA/40mA/400mA/4A/10A ±(1%+3)
Resistance (Ω) 400Ω/4kΩ/40kΩ/400kΩ/4MΩ/40MΩ ±(0.8%+2)
Capacitance (F) 9.999nF/99.99nF/999.9nF/9.999μF/99.99μF/
Frequency (Hz) 10Hz-10MHz ±(0.1%+4)
Display Count 4000
Auto Range YES
Manual Range YES
Bandwidth (Hz) 45Hz ~1kHz
Duty Cycle 0.1%-99.9% YES
Diode Around 3V
Auto Power Off Around 15 Minutes YES
Continuity Buzzer YES
Low Battery Indication ≤2.5V YES
Data Hold YES
Relative Mode YES
LCD Backlight YES
Input Protection 600Vrms YES
Input Impedance for DCV 1GΩ Max YES
General Characteristics
Power AA1.5*2
LCD Size 58mm × 36 mm
Product Colour Red and Grey
Product Net Weight 370g
Product Size 175mm x 81mm x 48.5 mm
Standard Accessories Battery, Test Leads
Standard Individual Packing Gift Box, English Manual
Standard Quantity Per Carton 40 PCs
Standard Carton Measurement 645mm×450mm×340mm (0.098CBM Per Standar Carton)
Standard Carton Cross Weight 25.5 Kg


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