The DT830B series multimeter is a compact, light tool - a bargain if you need something cheap and reliable. The heart of the instrument is the ICL7106 IC coupled with a large 3 1/2 digit, 7 segment, 0.5" high LCD display with a maximum reading of 1999.The DT-830B can measure DCV (0,1mV - 1000V), ACV (0,1V - 750V), DCA (0,1mA - 10A), Ohm (0,1Ω - 2MΩ) diode forward voltage drop and hFE for bipolar PNP and NPN transistors.

Specifications

The DT830B has a wide operating temperature: -20°C to 75° (32°F to 104°F) and a storage temperature of: -10°C to 50°C (10°F to 122°F). The accuracy is guaranteed to stay in the following limits for 1 year, when used at 23°C ± 5°C, less than 75% relative humidity:

AC voltage

Frequency range: 45Hz to 450Hz.
Response: Average responding, calibrated in RMS of a sine wave.

Range	Resolution	Accuracy
200V	100mV	±1.2 % of rdg ± 10 digits
750V	1V	±1.2 % of rdg ± 10 digits

DC voltage

Range	Resolution	Accuracy
200mV	0.1mV	±0.5% of rdg ± 2 digits
2000mV	1mV	±0.5% of rdg ± 2 digits
20V	10mV	±0.5% of rdg ± 2 digits
200V	100mV	±0.5% of rdg ± 2 digits
1000V	1V	±0.8% of rdg ± 2 digits

Input impedance: 1MΩ
Maximum input voltage: 1000V DC or 750V rms (200mV scale: 500V DC or 350V AC rms) Note: some models will have a maximum DC input voltage of only 600V with an overload protection of 250V RMS AC for the 200mV range and 600V DC or RMS AC for other ranges.

DC current

Overload protection: F250mA 250V fuse (10A range is unfused!).

Range	Resolution	Accuracy
200µA	0.1µA	±1.0% of rdg ± 2 digits
2000µA	1µA	±1.0% of rdg ± 2 digits
20mA	0.01mA	±1.0% of rdg ± 2 digits
200mA	0.1mA	±1.5% of rdg ± 2 digits
10A	10mA	±3.0% of rdg ± 2 digits

Resistance

Maximum open circuit voltage: 3.2V
Overload protection: 250V rms. AC on all ranges.

Range	Resolution	Accuracy
200Ω	0.1Ω	±0.8% of rdg ± 3 digits
2000Ω	1Ω	±0.8% of rdg ± 2 digits
20kΩ	10Ω	±0.8% of rdg ± 2 digits
200kΩ	100Ω	±0.8% of rdg ± 2 digits
2000kΩ	1kΩ	±1.0% of rdg ± 2 digits

Other specs

Diode aprox. testing voltage is 2.8V with a current of 1mA. The overload protection in the diode test mode is 250V RMS. AC.
Over range indication: figure "1" on the display.
Size: 126×70×25mm
Weight: 170g.