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Help CenterAccurate UNI-T LED Large Screen, Palmtop Multimeter UT139A
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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 to measure 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.
| Specifications | Range | Best Accuracy |
| Model | UT139A | |
| DC Voltage (V) | 20mV/200mV/2V/20V/200V/600V | ±(0.5%+2) |
| AC Voltage (V) | 20mV/200mV/2V/20V/200V/600V | ±(1%+3) |
| DC Current (A) | 200μA/2000μA/20mA/200mA/2A/10A | ± (0.7%+2) |
| AC Current (A) | 200μA/2000μA/20mA/200mA/2A/10A | ±(1%+3) |
| Resistance (Ω) | 200Ω/2kΩ/20kΩ/200kΩ/2MΩ/20MΩ | ±(1.0%+2) |
| Features | ||
| Display Count | 2000 | |
| Auto Range | √ | |
| Manual Range | √ | |
| True RMS | √ | |
| Bandwidth (Hz) | 45Hz ~400Hz | |
| V.F.C | √ | |
| Diode | Around 2V | |
| NCV | √ | |
| Battery Test | 1.5V / 9V | √ |
| Auto Power Off | Around 15 Minutes | √ |
| Continuity Buzzer | √ | |
| Low Battery Indication | ≤2.5V | √ |
| Data Hold | √ | |
| Relative Mode | √ | |
| MAX/MIN | √ | |
| LCD Backlight | √ | |
| Input Protection | 600Vrms | √ |
| Input Impedance for DCV | 1GΩ Max | √ |
| 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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