Digital multimeter  5999 digit +AC True RMS  

Model No.：DMM-139

This Digital multimeters are characterized by high reliability, high security, automatic range, and handheld multimeter.

Features large screen digital and high resolution, full scale overload protection and a unique design;

And it has the VFD (Variable-frequency Drive) measurement function of the inverter, which can stably measure the presence.

Variable frequency voltage or current occasions for high frequency interference signals; combined with true RMS measurement, data retention,

Relative measurement, maximum/minimum, undervoltage prompt, backlight and auto power off function make it a performance

A new generation of practical electrical measuring instruments. Can be used in various colleges and universities, smelting, communication,

Manufacturing, petroleum, defense, power, foundry, electrical equipment testing, maintenance and repair

The ideal tool. Connectable current sensor AC/DC 40A (optional)

 5999 digit + AC real rms reading True R.M.S.
 Model : DMM-139  Specifications:
 
Basic function range basic accuracy
Model DMM-139
DC voltage (V) 600mV/6V/60V/600V±(0.5%+2)
AC voltage (V) 6V/60V/600V±(0.8%+3)
DC current (A) 600μA/6000μA/60mA/600mA/6A/10A± (0.8%+2)
AC current (A) 600μA/6000μA/60mA/600mA/6A/10A±(1.0%+3)
Resistance (Ω) 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)
Frequency (Hz) 10Hz-10MHz±(0.1%+4)
Celsius temperature (°C) -40 °C to 1000 °C ± (1.0%+3)
Fahrenheit (°F) -40°F to 1832°F ±(1.5%+5)
 
special function
Maximum display 5999
Automatic range
Manual range√
True RMS√
Frequency response (Hz) 45Hz~1kHz
AC frequency conversion VFD measurement√
Duty cycle 0.1% to 99.9%√
Diode test about 3V
NCV √
Automatic shutdown for about 15 minutes√
On-off beep
Low voltage display? 2.5V√
Digital retention√
Relative measurement√
Maximum/minimum√
LCD backlight√
Input protection 600Vrms√
Input impedance up to 1GΩ√
 
General characteristics
Power supply AA1.5*2
LCD size 58 X 36 mm
Body color red + gray
Body weight 370g
Body size 175 X 80 X 48.5 mm
Standard accessories battery, test leads, temperature probe
Standard packaging box, manual, warranty card
*Optional accessories*
DMM-139 - Current Sensor AC/DC40A