User Manual

Below table indicated for information about the rotary switch positions.
Rotary Switch
Rotary Switch Position
OFF
V
A
Ω
V
Function
Turn on or off the power.
AC voltage measurement range from 200V to 300V.
DC current measurement range from 2000µA to 200mA.
Square wave output.
Battery test (1.5V & 9V battery).
Diode test.
Resistance measurement range from 200Ω to 2000kΩ.
DC voltage measurement range from 200mV to 300V.
Display Symbols
Symbol Meaning
Indicates negative reading.
The input value is too large for the selected range.
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Model UT20B: OPERATING MANUAL