Home
Electrical Instruments 4.Handheld MultimeterUT139 True RMS Digital Multimeter
The UT139 series of true RMS digital multimeters are characterized by high reliability, high security, automatic range, and handheld multimeter. With large screen digital and high-resolution function, full-scale overload protection and unique design; and VFD (Variable-frequency Drive) measurement function, it can stably measure variable-frequency voltage or current occasions with high-frequency interference signals; True rms measurement, data retention, relative measurement, maximum/minimum, undervoltage indication, backlighting, and auto-shutdown make it a new generation of practical electrical measurement instruments with superior performance. It can be used as an ideal tool for testing, maintenance and repair of various colleges and universities, smelting, communication, manufacturing, petroleum, defense, electric power, foundry, and circuit power equipment.
Specifications | Range | Best Accuracy | ||
Model | UT139A | UT139B | UT139C | |
DC Voltage (V) | 20mV/ 200mV/2V/ 20V/ 200V/600V | ±(0.5%+2) | ||
40mV/400mV/4V/ 40V/ 400V/600V | ±(0.5%+2) | |||
60mV/600mV/6V/ 60V/ 600V | ±(0.5%+2) | |||
AC Voltage (V) | 20mV/200mV/2V/ 20V/ 200V/ 600V | ±(1.0%+3) | ||
40mV/400mV/4V/40V/400V/600V | ±(0.8%+3) | |||
60mV/600mV/6V/ 60V/ 600V | ±(0.8%+3) | |||
DC Current (A) | 200μA/2000μA/20mA/ 200mA/ 2A/10A | ± (0.7%+2) | ||
400μA/4000μA/40mA/400mA/ 4A/10A | ± (0.7%+2) | |||
600μA/6000μA/60mA/ 600mA/ 6A/10A | ± (0.7%+2) | |||
AC Current (A) | 200μA/2000μA/20mA/ 200mA/ 2A/10A | ±(1.0%+3) | ||
400μA/4000μA/40mA/400mA/ 4A/10A | ±(1.0%+3) | |||
600μA/6000μA/60mA/ 600mA/ 6A/10A | ±(1.0%+3) | |||
Resistance (Ω) | 200Ω/ 2KΩ/ 20KΩ/ 200KΩ/ 2MΩ/ 20MΩ | ±(1.0%+2) | ||
400Ω/ 4KΩ/ 40KΩ/ 400KΩ/ 4MΩ/ 40MΩ | ±(0.8%+2) | |||
600Ω/ 6KΩ/ 60KΩ/ 600KΩ/ 6MΩ/ 60MΩ | ±(0.8%+2) | |||
Capacitance (F) | 9.999nF/99.99nF/999.9nF/9.999μF/99.99μF/999.9μF/9.999mF/99.99mF | ±(4.0%+5) | ±(4.0%+5) | |
Frequency(Hz) | 10Hz-10MHz | ±(0.1%+4) | ±(0.1%+4) | |
Temperature (°C) | -40°C~1000°C | ±(1.0%+3) | ||
Temperature (°F) | -40°F~1832°F | ±(1.5%+5) | ||
Features | ||||
Display Count | 1999 | 3999 | 5999 | |
Auto Range | Yes | Yes | Yes | |
Manual Range | Yes | Yes | Yes | |
True RMS | Yes | Yes | Yes | |
Frequency response | 45Hz-400Hz | 45Hz-1kHz | ||
VFC | Yes | Yes | Yes | |
Duty cycle | 0.1%-99.9% | Yes | Yes | |
Diode | Around 2V | Around 3V | Around 3V | |
NCV | Yes | Yes | Yes | |
Battery Test | 1.5V/9V | Yes | ||
Auto Power Off | Around 15 Minutes | Yes | Yes | Yes |
Continuity Buzzer | Yes | Yes | Yes | |
Low Battery Indication | ≤2.5V | Yes | Yes | Yes |
Data Hold | Yes | Yes | Yes | |
Relative measurement | Yes | Yes | Yes | |
Maximum/minimum | Yes | Yes | Yes | |
LCD backlight | Yes | Yes | ||
Input protection | 600Vrms | Yes | Yes | Yes |
Input resistance | 200mV≥100MΩ，200mV≥1GΩ | Yes | ||
40mV≥100MΩ，400mV≥1GΩ | Yes | |||
60mV≥100MΩ，600mV≥1GΩ | Yes | |||
Current caliper measurement | DCA 60A | ±(1.0%+3) | ||
ACA 60A | ±(1.2%+3) | |||
General Characteristic | ||||
Power | AA1.5*2 | |||
LCD Size | 58mm X36mm | |||
Product Color | Red and Grey | |||
Product Net Weight | 370g | |||
Product Size | 175mm X 81mm X48.5mm | |||
Standard Accessories | Battery, test pen, temperature probe(UT139C) | |||
Standard Individual Packing | Gift Box,English Manual,warranty card | |||
Standard Quantity Per Carton | 40 PCs | |||
Standard Carton Measurement | 645mm X 450mm X 340mm (0.099 CBM Per Standard Carton) | |||
Standard Carton Gross Weight | 25.5Kg | |||
Optional Accessories | Current sensor AC/DC40A(UT139C) | |||
