Digital Multimeter
User Manual
V1.1
-3- -4- -6-
尺寸：100*140mm
-5- -7- -8- -9- -10- -11- -12- -13- -14- -15- -23- -24- -25-
Web:.astroai.com
E-mail:[email protected]
Ⅲ. MEASURING AC/DC CURRENT
● Disconnect the power supply of the circuit under test.
● Insert the red test lead into the terminal and the black
test lead into the “COM” terminal.
● Turn the rotary dial to the
continuity test, touch the red
test lead and the black test
lead to check whether they are
normal. The buzzer will beep if
the test leads are normal.
● Insert the black test lead into the “COM” terminal and red
test lead into the 10A terminal.
NOTE: The red test lead must be inserted into the 10A
terminal when using function, otherwise the Meter ma
burn out.
A
● Connect the Meter to the circuit under test in series, and
then turn on the power supply of the circuit.
● Turn the rotary dial to the “ ”
setting. The screen will display
indicating that the measurement
function is DC current.
DC
A
● Press the FUNC button to switch
AC current test. The screen will
display indicating that the
measurement function is AC
current.
AC
-20- -21--16- -17- -18- -19- -22- -26- -27-
If you at some point intend to dispose of this product, please
keep in mind that many of its components consist of valuable
materials, which can be recycled. Please do not discard it in
the garbage bin, but check with your local authorities for
recycling facilities in your area.
2 Year Warranty Limited Warranty from AstroAI Each AstroAI
Digital Multimeter will be free from defects in material and
workmanship. This warranty does not cover fuses, disposable
batteries and damage from neglect, misuse, contamination,
alteration, accident, or abnormal conditions of operation or
handling, including overvoltage failures caused by use outside
the Multimeter’s specified rating, or normal wear and tear of
mechanical components. This warranty covers the original
purchaser only and is not transferable.
If this product is defective, please contact AstroAI Customer
Support at [email protected].
HOW TO DISPOSE OF THE METER
MULTIMETER DIAGRAM
GETTING TO KNOW YOUR DEVICE
● BUTTON FUNCTIONS
17
1
2 3
4
5
6
7
8
10
9
11
12
15
13
14
16
Button Function
3
MAX Button
FUNC Button
1
HOLD Button
2
Backlight Button
4
OFF
5
AC/DC Voltage Test
6
Capacitance/Resistance
7
Continuity Test/Diode Test
8
Frequency Test
9
AC/DC Current Test
10
Live Wire Detection
11
Rotary Switch
12
10A Terminal
13
Com Terminal
14
LCD Screen
16
Test Leads
17
Terminal
15
Thank you for purchasing the True RMS 2000 Count Digital
Multimeter from AstroAI. The AstroAI True RMS Digital
Multimeter is designed to be safely and accurately used in
schools, laboratories, factories and other social/industrial
fields. This user manual provides all safety information,
operation instruction, specifications, and maintenance for the
meter. This instrument performs AC/DC Voltage, AC/DC
Current, Resistance, Capacitance, Diode Testing, Continuity
Testing and Frequency Testing. Thank you again for choosing
AstroAI, if you have any questions or concerns regarding your
product, please contact us at [email protected].
NOTE: Fully read and comprehend this manual before using
this Digital Multimeter.
WARNING
● Use the Meter strictly in accordance with this manual,
otherwise the protection function provided by the Meter may
be damaged or weakened.
● Please be especially careful when measuring over 60V DC,
30V AC RMS or 42V peak value, there is a danger of an
electric shock.
● Do not apply more than the rated voltage, as marked on the
Meter, between the terminals or between any terminal and
grounding.
SAFTY INFORMATION:This instrument is designed in
accordance with the IEC61010-1 for the safety requirements
of electronic test instruments. The instrument is designed and
manufactured in strict compliance with the IEC61010-1 CAT.III
600V overpressure safety standard and pollution level 2.
To avoid possible electric shocks or personal injury, and to
avoid possible damage to the Meter or to the equipment being
tested, adhere to the following rules:
● Check whether the Meter is working normally by measuring
the known voltage, do not use it if the readings are incorrect
or the Meter is damaged.
● Before using the meter, please check whether there are
cracks or damage to the plastic parts of the meter casing.
Do not use the Meter if all or part of the exterior casing is
damaged.
● Before using the Meter, please check whether the test leads
are cracked or damaged. Please replace the test leads of
the same model and same electrical specifications if the
leads are damaged.
● Use the Meter according to the measurement category,
voltage or current rating specified on the meter or manual.
● Comply with local and national safety regulations. Wear
personal protective equipment (such as approved rubber
gloves, masks, and flame-retardant clothing, etc.) to prevent
injury from electric shocks and arcs when hazardous live
conductors are exposed.
● Replace the battery as soon as the low-battery indicator
appears to avoid measurement errors.
● Do not use the Meter around explosive gas or steam; or
humid environments.
● When using the test leads, keep your fingers behind the
finger guards.
● When measuring, connect the neutral wire or ground wire
first, and then connect the live wire; when disconnecting,
disconnect the live wire first, and then disconnect the neutral
wire and the ground wire.
● Before opening the case or battery cover, remove the test
leads from the Meter first. Do not use the Meter when it is
disassembled or the battery cover is opened.
● The Meter can only be used with the equipped test leads to
meet the requirements of safety standards. If the test leads
are damaged and need to be replaced, replace only the
same model and the same electrical specifications.
ELECTRICAL SYMBOLS
！
Ω
Hz
mV/V
Live
mA/A
AC
(Alternating Current)
DC (Direct Current)
SIZE
5.6in
2.9in
1.7in
AC and DC
Capacitance Test
Resistance Test
Double Insulation
Voltage
Live Wire Detection
Low Battery Symbol
Audible Continuity Test
Diode Test
Earth Ground
Frequency
Warning
Current
Compliant with
EU Standards
● Use the FUNC button to further select the function if
there are multiple functions in one rotary setting.
NOTE: Pay special attention to make sure the
selected setting is correct before performing any tests.
FUNC
HOLD
MAX
● Press the MAX button to turn on/off the maximum
value record. You can use this function when you
need to record the maximum value in the
measurement scale. First, you need to connect the
multimeter to the circuit, and then press the MAX
button (please do not remove the test lead during
this measurement) to turn on the maximum value
function, then the LCD display will show the
maximum value of all the measured data; Press the
MAX button again to turn off this function.
NOTE: The screen will display when the maximum
value function is turned on.
MAX
● Press the button to turn on/off the screen’s
backlight.Press the button to turn on the backlight,
the reading can be seen clearly in a dim
environment; press this button again to turn off the
backlight.
H
● Press the HOLD button to hold or cancel the data.
Press this button while performing a test to hold
(freeze) the reading for recording, then the screen
will keep the reading when the hold function is
activated. Press the HOLD button again to turn off
this function.
NOTE:The screen will display when the data hold
function is activated.
● AUTO SHUT OFF
● Rotating the rotary switch from the OFF button to any gear
will turn on the power. After 15 minutes of standby, the Meter
will automatically turn off. To turn it on again, just rotate the
range switch or press the button.
1
2
Plug the black test lead into the COM terminal.
1
2
3
Plug the red test lead into 10A terminal when
using this function.
A
3
Plug the red test lead into terminal when
you need to use functions other than .
A
● TEST LEADS HOLDER
● The test leads can be fixed on the back of the
Meter (as shown in the figure), and the test
leads holder can facilitate the storage and next
use.
NOTE:
● To avoid damage to the Meter, do not measure voltage
exceeding 600V.
● Pay special attention to safety when measuring high voltage
to avoid electric shock or personal injury.
● Before using the Meter to test a known voltage or current,
confirm that the Meter functions work properly.
OPERATION INSTRUCTIONS
Ⅰ.MEASURING AC/DC VOLTAGE
● Insert the red test lead into the terminal and the black
test lead into the “COM” terminal.
● MEASURING AC VOLTAGE
● Turn the rotary dial to the
continuity test, touch the red
test lead and the black test lead
to check whether they are
normal. The buzzer will beep if
the test leads are normal.
● Turn the rotary dial to the“ ”
setting. The screen will display
indicating that the measurement
function is AC voltage.
V
AC
● Connect the test leads to the circuit under test (connect the
leads in parallel to the power supply or circuit under test) to
measure.
● Turn the rotary dial to the “ ”
setting. The screen will display
indicating that the measurement
function is DC voltage.
DC
● After the reading stabilizes, record the reading from the LCD
screen.
Ⅱ. MEASURING AC/DC mV VOLTAGE
● Insert the red test lead into the terminal and the black
test lead into the “COM” terminal.
● Turn the rotary dial to the continuity
test, touch the red test lead and the
black test lead to check whether
they are normal. The buzzer will
beep if the test leads are normal.
● Turn the rotary dial to the “ ”
setting. The screen will display
indicating that the measurement
function is mV voltage.
DC
mV
● Connect the test leads to the circuit under test (connect the
leads in parallel to the power supply or circuit under test) to
measure.
NOTE: If the reading is negative when measuring the DC
voltage, it means that the positive and negative poles of the
test leads are reversed, please change the test leads.
● Press the FUNC button to switch
to AC mA voltage test. The screen
will display indicating that the
measurement function is AC
voltage.
AC
● Turn the rotary switch to the OFF position to turn off the
Meter.
VOLTAGE TIPS
HOW TO FIND A LIVE WIRE IN A SOCKET:
● Switch to the voltage test setting.
● Connect the black test lead to the grounded wire or
jack. Connect the red test lead to one of the jacks to
be measured.
● Check both jacks. One should have a reading and the
other should remain at or near zero. The live wire will
have the reading.
● After the reading stabilizes, record the reading from the LCD
screen.
● Turn the rotary switch to the OFF position to turn off the
Meter.
VOLTAGE NOTES
● Choose the V setting to measure the unknown voltage first,
and then select the appropriate range according to the
voltage.
● To avoid damage to the meter, do not measure voltage
exceeding 600V DC or 600V AC CATIII.
● Pay special attention to the voltage setting of the
Multimeter. The LCD screen will indicate whether the
setting is in AC. Use the “Select” button to choose the
correct setting.
● If the AC setting is used to measure DC and vice-
versa, an overflow symbol will be displayed.
Performing this has the potential to damage the Meter
or any components you are attempting to test.
● When measuring voltage, the result will fluctuate depending
on the power supply. Generally speaking, the result will
fluctuate ±10V, which is NOT an inaccurate result.
● After the reading stabilizes, record the reading from the LCD
screen.
● Turn the rotary switch to the OFF position to turn off the
Meter.
Ⅳ. MEASURING AC/DC mA CURRENT
● Disconnect the power supply of the circuit under test.
● Insert the red test lead into the terminal and the black
test lead into the “COM” terminal.
● Turn the rotary dial to the“ ”
setting. The screen will display
indicating that the measurement
function is DC current.
DC
mV
● Press the FUNC button to switch
AC mA current test. The screen
will display indicating that the
measurement function is AC
current.
AC
● Turn the rotary dial to the
continuity test, touch the red
test lead and the black test
lead to check whether they are
normal. The buzzer will beep if
the test leads are normal.
● After the reading stabilizes, record the reading from the LCD
screen.
● Turn the rotary switch to the OFF position to turn off the Meter.
● Connect the Meter to the circuit under test in series, and
then turn on the power supply of the circuit.
NOTE: If the reading is negative when measuring the DC
current, it means that the positive and negative poles of the
test leads are reversed, please change the test leads.
AUTOMOTIVE PARASITIC BATTERY DRAIN
● Check if the battery voltage and power generation are within
normal range. The battery voltage is generally around 12.7V
and the power generation is around 14V.
● Turn off all electrical accessories inside and outside the car
and close the doors.
● Remove the negative electrode of the battery. Set the
Multimeter to the maximum current level and connect
the Meter in series to the battery. Connect the red test lead
to the negative line and the black test lead to the battery
terminal.
● Adjust the Meter, if necessary, to a lower range.
● Wait for about 30 minutes; after all the modules of the
vehicle enter the sleep state, read the accurate static
discharge current. The discharge current is generally 0.02A
(20mA), however, this can vary depending on the vehicle.
Generally, it is normal to not exceed 50mA.
● If the drain is larger than 50mA, begin checking fuses
individually for which circuit is carrying the excess load. If a
removed fuse reduces the battery draw to below 50mA, it
can be determined the corresponding circuit is drawing the
excess discharge.
Ⅴ. MEASURING RESISTANCE
● Insert the red test lead into the terminal and the black
test lead into the “COM” terminal.
● Turn the rotary dial to the“ ”
setting. The screen will display “Ω”
indicating that the measurement
function is resistance.
Ω
CURRENT NOTES
● Choose the setting to measure first when you are not sure
whether to choose the setting or setting, then decide
whether to select for measurement.
● If you insert the red test lead into the 10A jack, be sure to
insert the test lead back into the jack after the test to
avoid forgetting to switch the jack for the next operation and
thus burning the Multimeter.
● When testing a high current, for safety reasons, each
measurement time should be less than 10 seconds, and the
interval time between tests should be greater than 15 minutes.
● When testing the current, there must be a load in the circuit.
Do not connect the multimeter in series with the circuit
without a load to measure; doing so can potentially damage
the Meter.
● Do not apply a current exceeding the Meter’s range to avoid
damaging the Meter.
● Turn the rotary dial to the
continuity test, touch the red
test lead and the black test
lead to check whether they are
normal. The buzzer will beep if
the test leads are normal.
Ⅵ. MEASURING CAPACITANCE
● Insert the red test lead into the terminal and the black
test lead into the “COM” terminal.
● Turn the rotary dial to the “ ”
setting. Press the FUNC button
to switch to capacitance test. The
screen will display “F” indicating
that the measurement function is
capacitance.
Ω
● Turn the rotary switch to the OFF position to turn off the Meter.
● Connect the test leads to both ends of the circuit or resistor
under test (connect the leads to the resistance under test in
parallel).
● After the reading stabilizes, record the reading from the LCD
screen.
RESISTANCE NOTES
● Do not change the resistance while taking a measurement.
Doing so may damage the Meter and affect the test results.
● Do not test parallel circuits. The accuracy of the measurement
will be affected, and the results may not be accurate.
● Do not directly measure the internal resistance of
micrometers, galvanometers, batteries, and other instruments.
● Turn the rotary dial to the
continuity test, touch the red
test lead and the black test
lead to check whether they are
normal. The buzzer will beep if
the test leads are normal.
Ⅶ. CONTINUITY TEST
● Turn the rotary dial to the setting. The
screen will display indicating that the
measurement function is continuity.
Touch the red test lead and the black
test lead to check whether they are
normal. The buzzer will beep if the test
leads are normal.
● Turn the rotary switch to the OFF position to turn off the Meter.
● Connect the test leads to both ends of the circuit or resistor
under test (connect the leads to the resistance under test in
parallel).
● After the reading stabilizes, record the reading from the LCD
screen.
CAPACITANCE TIPS
● If the measured value is significantly different from the value
marked on the capacitor, the capacitor is damaged.
CAPACITANCE NOTES
● Before measuring the capacitor, discharge the capacitor to
avoid damage to the Meter. Do so by connecting the
capacitor to a high-powered resistor.
● Discharge the capacitor after measurement to avoid any
potential safety hazards.
● If the capacitance is large, it may take a long time for the
reading to stabilize.
● Insert the red test lead into the terminal and the black
test lead into the “COM” terminal.
Ⅷ. DIODE TEST
● Connect the test leads to both ends of the circuit or
resistance under test (parallel). If the resistance of the
circuit or resistance under test is connected and less than
50Ω, the buzzer will emit a beep and the
measured resistance value will be
displayed on the LCD display.
● If the circuit or resistance under test is
disconnected, or the resistance value is
greater than 50Ω, the LCD display will
display” OL”.
● Turn the rotary switch to the OFF position to turn off the
Meter.
● Turn the rotary dial to the“ ”
setting. Press the FUNC button
to switch diode test. The screen
will display“ ”indicating that the
measurement function is diode.
● Insert the red test lead into the terminal and the black
test lead into the “COM” terminal.
● Turn the rotary dial to the
continuity test, touch the red
test lead and the black test
lead to check whether they are
normal. The buzzer will beep if
the test leads are normal.
● Connect the red test lead to the anode of the diode under
test and the black test lead to the cathode of the diode.
NOTE: Usually the anode of the diode is the longer end.
● The LCD screen will display the approximate voltage drop
reading of the diode. If the test leads are connected
reversely, “OL” will be displayed on the LCD screen. Please
replace the test leads to measure again.
● Turn the rotary switch to the OFF position to turn off the
Meter.
DIODE TEST TIPS
● Is the diode functioning correctly: If the red test lead is
connected to the positive pole of the diode and the black
lead is connected to negative, then the diode should be in a
forward conduction state, and the displayed value is the
forward voltage drop.
● Normal diode forward pressure drops: the general silicon
tube is 0.5- 0.7 V, germanium tube is 0.15-0.3V.
● If "000 "is displayed, the diode is broken.You can also verify
that the red test lead is connected to the negative pole of the
tested diode and the black test rod is connected to the
positive pole. The diode should display OL.
POLARITY JUDGMENT METHOD
● Switch the Multimeter to the Resistance setting.
● Connect the two test leads to the two electrodes of the diode.
● Measure one result, then swap the positions of the test
leads, then measure the second result.
● The larger result is the reverse resistance and the smaller
result is the forward resistance. The smaller resistance is
when the black test lead is connected to the positive end of
the diode and the red lead is connected to the negative end.
Ⅸ. FREQUENCY TEST
Ⅹ. LIVE WIRE DETECTION
● Insert the red test lead into the terminal and the black
test lead into the “COM” terminal.
● Turn the rotary dial to the
continuity test, touch the red
test lead and the black test
lead to check whether they are
normal. The buzzer will beep if
the test leads are normal.
● Connect the test leads in parallel to both ends of the tested
power supply or circuit.
● Turn the rotary switch to the OFF position to turn off the Meter.
● After the reading stabilizes, record the reading from the LCD
screen.
● Insert the red test lead into the terminal and the black
test lead into the “COM” terminal.
● Turn the rotary dial to the “Live”
setting. The screen will display
“Live” indicating that the
measurement function is live wire.
● Turn the rotary dial to the
continuity test, touch the red
test lead and the black test
lead to check whether they are
normal. The buzzer will beep if
the test leads are normal.
● Remove the black test lead. Touch the point to be measured
with the tip of the red test lead.
● When the meter senses a weak AC signal, the LCD screen
will display “--L”, and the buzzer emits a slow beep; When
the meter senses a strong AC signal, the LCD screen will
display “--H”, and the buzzer will emit a quick beep.
● Turn the rotary switch to the OFF position to turn off the Meter.
MAINTENANCE
CLEANING THE METER
If there is dust or humidity in the terminals, it may produce
erroneous measurements. Please clean the Meter as follows:
● Turn off the power to the Meter and remove the test leads.
● Turn the meter over and shake out the dust accumulated in
the input jack, wipe the case with a damp cloth or mild
detergent. Wipe the contacts in each terminal with a clean
cotton swab dampened in alcohol.
SPECIFICATIONS
REPLACING THE BATTERY AND FUSE
BATTERY REPLACEMENT:
● Turn off the Meter and remove the test leads.
● Unscrew the screws fixing the battery cover with a
screwdriver, and remove the battery cover.
● Remove the old battery and replace it with a new battery of
the same specification.
● Put the battery cover back to its original position and fix the
battery cover with the removed screws.
● Battery Type:NEDA1604/6F22--9V Batteries
REPLACING FUSE:
● Turn off the Meter and remove the test leads.
● Unscrew the screws fixing the battery cover with a
screwdriver, and remove the battery cover and the battery.
● Remove the insulating sleeve and screws on the back cover
of the Meter.
● Remove the blown fuses and replace them with new fuses
of the same specification, and make sure that the fuses are
loaded into the fuse clip and clamped tightly.
● Put the insulation cover, the battery and the battery cover
back, and lock the cover with screws.
● The specifications of fuses:
Fuse 1: F250mA/250V fuse; Size:φ5*20mm
Fuse 2: F10A/250V fuse; Size:φ5*20mm
2000,3 ½
3 Times/Second
Digital Display
Sampling Speed
Ⅰ.PRECISION INDEX
Reference Conditions:Ambient Temperature :18°C to 28°C,
Relative Humidity: ≤ 80%,Accuracy: (%rdg + dgts)
The accuracy is applicable within one year after calibration.
32°F~104°F
(0°C~40°C;<80% RH,<10°C Non-condensing)
39X22mm
Auto or Manual
“-” Automatically Displayed
“OL” Displayed
displayed when battery voltage is
lower than normal
LCD Dimensions
Range Selection
Polarity Indication
Overload
Indication
Low Battery
Indication
Work
Environment
Storage
Temperature
Power
Weight
Dimensions
Safety/
Compliance
14°F~122°F
(-10°C~6°C;<70% RH, Remove the Battery)
NEDA1604 or 6F22，9V Battery
Approximately 211g
5.6×2.9×1.7in
CAT.III 600V; Pollution Level: 2;
Altitude <2000m
DETAILED SPECIFICATION
Range
200mV
Resolution
Accuracy
0.1mV
2V 0.001V
20V 0.01V
±(0.5% rdg +5 dgts）
200V 0.1V
600V 1V
● Input Impedance: 10MΩ
● Overload Protection: 600V
● Maximum Measuring Voltage: 600V
● Input Impedance: 10MΩ
● Overload Protection: 600V
● Maximum Measuring Voltage: 600V
● Frequency Range: 40Hz ~ 1kHz
● Response: True RMS
Ⅱ.DC VOLTAGE
Ⅲ.AC VOLTAGE
Range
200mV
Resolution
Accuracy
0.1mV
2V
0.001V
20V
0.01V
200V
0.1V
600V
1V
±(1.0% rdg +5 dgts）
● Overload Protection: mA: F250mA/250V fuse
10A: F10A/250V fuse
● When large currents are measured, the continuous
measurement time should not exceed 15 seconds.
● Overload Protection: mA: F250mA/250V fuse
10A: F10A/250V fuse
● When large currents are measured, the continuous
measurement time should not exceed 15 seconds.
● Frequency Range: 40Hz ~ 1kHz
● Response: True RMS
Ⅳ.DC CURRENT
Ⅴ.AC CURRENT
Range
20mA
Resolution
Accuracy
0.01mA
200mA
0.1mA
10A
0.01A
±(1.2% rdg +5 dgts）
Range
20mA
Resolution
Accuracy
0.01mA
200mA
0.1mA
10A
0.01A
±(1.5% rdg +5 dgts）
● Overload Protection: 250v
VI.RESISTANCE
VII.CAPACITANCE
200Ω 0.1Ω
2kΩ 0.001kΩ
20kΩ 0.01kΩ
200kΩ 0.1kΩ
2MΩ 0.001MΩ
20MΩ 0.01MΩ
Range
Resolution
Accuracy
±(1.0% rdg +5 dgts）
● Overload Protection: 250v
2nF
0.001nF
20nF 0.01nF
200nF 0.1nF
2μF 0.001μF
20μF 0.01μF
200μF 0.1μF
2mF 0.001mF
Range
Resolution
Accuracy
±(4.0% rdg +5 dgts）
The buzzer inside the Meter
will beep if the resistance
<50Ω.
Open Circuit Voltage:
approximately2V
Overload Protection:
250V
The approximate diode
forward voltage value will
be displayed.
Reverse DC Voltage:
approximately 2.0V
Overload
Protection:250V
● 1 x Owner’s Manual
● 1 x Pair of Test Leads
● 1 x AstroAI 2000 Counts Multimeter
INCLUDED IN BOX
VIII.FREQUENCY
IX.CONTINUITY TEST
X.DIODE TEST
2Hz 0.001Hz
20Hz 0.01Hz
200Hz 0.1Hz
2kHz 0.001kHz
20kHz 0.01kHz
200kHz 0.1kHz
2MHz 0.001MHz
Range
Resolution
Accuracy
±(1.0% rdg +3 dgts）
● Overload Protection: 250v
-2-
● Turn the rotary dial to the “Hz”
setting. The screen will display
“Hz”indicating that the
measurement function is
frequency.
DIGITAL MULTIMETER
2000 Counts
A s t r o A I
FUNC
HOLD
MAX
OFF
V
mV
A
mA
Live
COM
10A
Ω
600V CAT
MAX Live NCV
H
MKΩHz％μmVAF℃℉
AC
DC
V
Hz
III
！ ！
MAX
10A/250V
MAX
250mA/250V
M2KOR
n
DIGITAL MULTIMETER
2000 Counts
A st ro A I
FUNC
HOLD
MAX
OFF
V
mV
A
mA
Live
COM
10A
Ω
600V CAT
MAX Live NCV
H
MKΩHz％μmVAF℃℉
AC
DC
V
Hz
III
！ ！
MAX
10A/250V
MAX
250mA/250V
M2KOR
n
DIGITAL MULTIMETER
2000 Counts
A st ro A I
FUNC
HOLD
MAX
OFF
V
mV
A
mA
Live
COM
10A
Ω
600V CAT
MAX Live NCV
H
MKΩHz％μmVAF℃℉
AC
DC
V
Hz
III
！ ！
MAX
10A/250V
MAX
250mA/250V
M2KOR
n
250mA/250V10A/250V
