1.the device is an auto-ranging multimeter,so the mV function is always jumps, this is not defect, it is correct.
RM102Pro is a new product, 102Pro has a Auto-Functional func than RM102, all test ranges are the same.
RM102 has extra temperature test function than RM101
Temperature Measuring Range: -20 C~~1000 C (-4 F~~1832 F)
Thermomcouple range: <400 C
It is a Auto-ranging digital multimeter using double-integral style A/D transform as the core,
Can be used to measures AC/DC Voltage,AC/DC Current,Resistance,Capacitance,Diode and Continuity testing,temperature,Frequency and Etc.
The products are battery powered.they are characterized by stable function and high reliability, with the features of overload protection and LCD display for clear reading,are an ideal tools for lav,factory,radio fans and family use.
Max display:2000/4000/6000/9999 counts
Measurement mode:double-integral style A/D transform
Sample rate:3 times per second
Over range indication:OL
Low voltage indication
Working Environment:0-40 degrees,relative humidity <80%
True RMS measurement
Resistance capacitance frequency file high voltage 550V protection
Large screen display
Sampling rate: about 3 times per second
Polarity automatic recognition
Low voltage display
DC voltage: 400.0mV/4.000V/40.00V/400.0V/600V
DC voltage resolution: 0.1mV/1mV/10mV/100mV/1V
AC voltage (RMS): 400.0mV/4.000V/40.00V/400.0V/600V
AC voltage resolution: 0.1mV/1mV/10mV/100mV/1V
DC current: 40.00mA/400.0mA/10.00A
DC current resolution: 10uA/100uA/10mA
AC current (RMS): 40.00mA/400.0mA/10.00A
AC current resolution: 10uA/100uA/10mA
Resistance resolution: 0.1/1/10/100/1k/10k
Capacitance resolution: 1pF/10pF/1nF/10nF/100nF
Frequence resolution: 0.5Hz/0.5Hz/1Hz/10Hz/100Hz/1kHz
10A large current measurement, mA level small current measurement
Automatic shut down
Main measurement: AC/DC voltage, AC/ DC current, resistance,capacitance
Diode/off measurement, frequency and duty ratio measurement.
frequency measurement range: to 10MHz 1Hz
capacitance measurement range: to 6000uF 10pF
AC voltage measurement range: to 750V 0.1mV
DC voltage measurement range: to 1000V 0.1mV
AC current measurement range: to 10A 0.1uA
DC current measurement range: to 10A 0.1uA
Resistance measurement range: 0.1 60M to
Width ratio measurement range: 1% to 99%
frequency: 5/50/500/5k/50k/500k/5M/10M (+ 0.1+3)
Thermomcouple range:max 400 degrees (only RM102)
Display Type: Digital Display
Diode Test: Yes
Duty Cycle: 1%-99%
Sample Rate:3 times per second
Power: 2 x 1.5V AAA batteries(not included)
Item weight: 113.3g / 3.99oz
Item size: 12.5 x 6.5 x 2.2 cm / 4.92 x 2.56 x 0.87 in.
Package size: 16x 10×4.5 cm / 6.30 x 3.94 x 1.77 in.
all thermometer comes is tp-01