Specifications:
Model: UT120A
DC Voltage ( V ): 400V / 4V / 40V + / - ( 0.8 percent + 1 ), 600V + / - ( 1 percent +3 )
AC Voltage ( V ): 4V / 40V / 400V+ / - ( 1.2percent + 3 ), 600V + / - ( 1.5 percent + 5 )
Resistance ( ohm ): 400 ohm / 4K ohm / 40K ohm / 400K ohm+ / - ( 1 percent + 2 ), 4M ohm+ / - ( 1.2 percent + 2 ), 40M ohm + / - ( 1.5 percent + 2 )
Frequency ( Hz ): 99.9Hz / 0.999KHz / 9.99KHz / 99.9KHz + / - ( 0.5 percent + 3 )
Display Count: 4000
Auto Range: yes
Duty Cycle: 0.1 percent - 99.9 percent
Diode: yes
Auto Power Off: around 30 minutes
Continuity Buzzer: yes
Low Battery Indication: equal to or less than 2.4V
Data Hold: yes
Relative Mode: yes
Input Impedance for DCV: around 10M ohm
Power: 3V CR2032 battery ( built in )

Model: UT120B
DC Voltage ( V ): 400V / 4V / 40V + / - ( 0.8 percent + 1 ), 600V + / - ( 1 percent +3 )
AC Voltage ( V ): 4V / 40V / 400V+ / - ( 1.2percent + 3 ), 600V + / - ( 1.5 percent + 5 )
Resistance ( ohm ): 400 ohm / 4K ohm / 40K ohm / 400K ohm+ / - ( 1 percent + 2 ), 4M ohm+ / - ( 1.2 percent + 2 ), 40M ohm + / - ( 1.5 percent + 2 )
Capacitance ( F ): 4nF / 40nF / 400nF / 4uF / 40uF+ / - ( 4percent + 3 ), 100uF + / - ( 5 percent + 10 )
Frequency ( Hz ): 99.9Hz / 0.999KHz / 9.99KHz / 99.9KHz + / - ( 0.5 percent + 3 )
Display Count: 4000
Auto Range: yes
Duty Cycle: 0.1 percent - 99.9 percent
Diode: yes
Auto Power Off: around 30 minutes
Continuity Buzzer: yes
Battery: 3V CR2032 ( built in )
Low Battery Indication: equal to or less than 2.4V
Data Hold: yes
Relative Mode:yes
Input Impedance for DCV: around 10M ohm

Model: UT120C
Specifications:
DC Voltage ( V ): 400mV + / - ( 0.8 percent + 3 ), 4V / 40V+ / - ( 0.8 percent + 1 ), 600V + / - ( 1 percent + 3 )
AC Voltage ( V ): 4V / 40V / 400V+ / - ( 1.2 percent + 3 ), 600V + / - ( 1.5 percent + 5 )
DC Current ( A ): 400uA / 4mA+ / - ( 1.0 percent + 3 ), 40mA / 400mA + / - ( 1.2percent + 5 )
AC Current ( A ): 400uA / 4mA+ / - ( 1.5percent + 5 ) , 40mA / 400mA + / - ( 2 percent + 5 )
Resistance (ohm): 400ohm + / - ( 1percent + 2 ), 4Kohm / 40Kohm / 400Kohm + / - (1percent + 2), 4Mohm + / - ( 1.2 percent + 2 ), 40Mohm + / - ( 1.5 percent + 2 )
Capacitance (F): 4nF, 40nF / 400nF / 4uF / 40uF + / - ( 4 percent + 3 ), 100uF + / - ( 5 percent + 10 )
Frequency (Hz): 99.9Hz / 0.999KHz / 9.99KHz / 99.9KHz + / - ( 0.5 percent + 3 )
Display Count: 4000
Auto Range: yes
Duty Cycle: 0.1 percent - 99.9 percent
Diode: yes
Auto Power Off: around 30 minutes
Continuity Buzzer: yes
Low Battery Indication: equal to or less than 2.4V
Data Hold: yes
Relative Mode: yes
Input Impedance for DCV: around 10M ohm
Power:3V CR2032 battery ( built in )
LCD Size: 41mm x 21mm