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User Manual for Pro sKit models including: MT-2207 Protective Multifunction Analog Multimeter, MT-2207, Protective Multifunction Analog Multimeter, Multifunction Analog Multimeter, Analog Multimeter, Multimeter
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DocumentDocumentMT-2207 Protective Multifunction Analog Multimeter
User's Manual
1st Edition, 2023
©2023Copyright by Prokit's Industries Co., Ltd.
INTRODUCTION
This Multi-meter is an accurate, safe handheld meter that comes with mirrored Aluminum dial, robust protective holster alongside, built-in stand and hook-up design. MT-2027 is powered by batteries, offers accurate, reliable measurement of DC/AC Voltage, +/-DCV, DC Current, Resistance and Diode, LED, Transistor, Decibels, Continuity test and Capacitance with very high sensitivity quality movement. This meter is designed with double-sided glass-epoxy PCB, full overload & misused protection via two Fuses, voltage Suppressor & Diodes, and smart protection on testing via the extra Resettable Fuse & Varistor. Ideal for indoor
use in laboratory, school, workshop, and home applications. SPECIFICATION
Safety Category: IEC61010-1, CAT II 1000V CAT III 500V and Pollution Degree 2.
Common Environment: 23C5C, less than 75% RH.
Operating temperature: 0C to 40C, 32 F to 104 F
Storage temperature: -10 C to 50C, 14 F to 122F Operating Humidity Scope: Less than 90% RH. Storage Humidity Scope: less than 80% RH. Dimensione: 179(L) x 118(W) x 50(H) mm Weight: 400g approx. (not including test leads and batteries) Accessories: One pair of test leads; Spare Fuse: F0.5A 250V;F10A 250V, 5x20mm
Test Functions
Range
Accuracy
Remarks
DC V
0-0.25-1-2.5-1050-250-5001000V(2500V)
3% FSD. 4% FSD for 1000V(2500V)
Input Impedance: 20K/V, UP 50V 9K/V; Overload Protection: 0.25V/1V/2.5V/10V/50 V Range250V Max. 250V/500V/1000V Range, 1000V AC/DC Max. 2500V Range, 2500V AC/DC Max.
AC V
0-10-50-250V500V -1000V(2500V)
4% FSD. 5% FSD for 1000V(2500V)
Input Impedance: 9K/V Overload Protection: 10V/50VRange, 250V Max. Band width: 40
1
DC mA
Capacitance (uF)
BATT Check
Transistor Check LED, Diode Check Decibel
0-50uA-0.5mA5mA-50mA500mA(10A)
3% FSD. 4% FSD for 10A
X 1: 0.2 ~ 2K Midscale at 20 X 10: 2 ~ 20K Midscale at 200 X 100: 20 ~ 200K Midscale at 2000 X1K: 200~ 2M Midscale at 0K X10K: 2K ~20M Midscale at 200K Cx1: 50uF Cx10: 500uF Cx100: 5000uF Cx1K & Cx10K: Approx. Value 0 -1.2V- 1.5V2.0V-3V-3.6V: BAD (red)- ? GOOD(green) hFE: 0-1000 via special hFE socket via special hFE socket -22 dB ~ + 62 dB
4% of ARC of Scale Length
Approx. Value
5% of ARC of Scale Length Approx. Value Approx. Value Approx. Value
~10K Hz 1000V Range ,1000V AC/DC Max. 2500V Range ,2500V AC/DC Max. Drop Voltage: 250 mV Overload protected by Fuses 0.5A/250V & 10A / 250V at 10A range, Max. test time 10sec. for 10A. Overload protected by the voltage Suppressor & Fuse (3sec.)
Overload protected by the voltage Suppressor & Fuse (3sec.)
Overload protected by the voltage Suppressor & Fuse (3sec.)
At X 10 Range
At X 10 Range
At ACV ranges
2
Continuity Check
(0dB=1mW at 600) Beeper sounding under 50 Ohm
Power Source
Internal Battery: AAA, 1.5V 2pcs,
Name of part
Via Test Leads
Overload protected by the voltage Suppressor & Fuse (3sec.)
1.Scale panel 2.Point zero adjust 3. hFE socket 4.Range switch 5.VmA input socket 6.COM input socket 7.10A input socket 8.2500V input socket 9.Resistance zero adjust
CALIBRATION
Ohms Zero Adjustor located at the right side of the panel. Adjust the meter pointer to the Zero mark on the right side of Ohm scale of the meter dial when the test leads are touched together. Mechanical Adjustor Screw: located right side below the center of the meter dial to set pointer to Zero mark at the left side of the scale. (-) Jack: Plug-in connector at the lower left on the panel for black, negative test lead. (+) Jack: Plug-in connector at the lower right on the panel for Red, positive test lead.
3
STAND & HOOK-UP
This meter can be used in any operating position. It has an oblique bracket and a hook behind it. Users should choose according to their own needs. And it have magnets on its back to absorb the suspension.
OPERATING INSTRUCTIONS
CAUTION!
When making voltage or current measurements, develop the habit of turning off all power to the circuit under test. Connect the test leads at the desired points in the circuit, and then turn on the power while taking readings. Turn off the power before disconnecting the test leads from the circuit.
INTERNAL BATTERY CHECK
To check the battery condition, insert the black test lead into the (-) jack. Set the range switch to the R X1 range position and short the ends of the two sides of the test leads. If the pointer can not be brought to the zero mark, replace the 1.5V batteries. (See battery replacement.)
BEFORE OPERATING
1. Set the range switch to the proper position before making any measurement.
2. Never apply more voltage or current than the rated value in every position. 3. When the voltage or current to be measured it not known, always start with
the highest range. 4. If meter indication is in the lower half of the scale and falls within the range
of a lower scale, reset selector switch to the lower range for greatest accuracy. 5. If the meter won't work at all, check the fuse located on the PCB. If it's blown, replace it. (See fuse replacement.) 6. Avoid placing the meter where extreme shock or continuous vibration is encountered and do not store in excessively hot or damp places. Although very rugged, the meter is a sensitive measuring device and should be handled carefully & properly. 7. Do not check resistance, transistor, diode, LED, or capacitance when live voltage or current input across the circuit. 8. When the meter is not in use, keep the selector switch to the "DC or AC voltage" range position, this provides direct short across meter movement for minimum needle bounce when transporting meter. 9. If you should accidentally apply excessive voltage or current on a certain range, disconnect the leads from the circuit as quickly as possible, check instrument operation on that range by applying peoper input. If the meter does not operate properly, check fuse. If it is blown replace it. (See fuse replacement.)
4
OPERATION PROCEDURES DC Voltage Measurement
WARNING: USE EXTREME CARE WHEN MAKING MEASUREMENTS FOR HIGH VOLTAGE. DO NOT TOUCH TERMINAL OR PROBE ENDS.
1. Set the selector switch to the appropriate DCV range to be used. 2. Connect the BLACK test lead to the "-COM" jack and the RED test lead to the
"+" jack. 3. If measuring a voltage above 1000V, insert the red test lead into the "2500v"
jack. 4. If you know the polarity of the circuit to be tested, connect the black probe to
the negative side. 5. If you don't know the polarity, connect the probes to opposite sides of the
circuit and watch the pointer. If it goes to the left, reverse the probes. The RED probe will be connected to the positive. 6. Check the needle position and the get the reading on V.A scale.
AC Voltage Measurement
WARNING: USE EXTREME CARE WHEN MAKING MEASUREMENTS FOR HIGH VOLTAGE. DO NOT TOUCH TERMINAL OR PROBE ENDS!
1. Set the selector switch to the appropriate ACV range to be used and connect the test leads across the circuit or load under measurement. (Polarity of the test probes is unimportant on ACV test.)
2. Connect the BLACK test lead to the "-COM" jack and the RED test lead to the"+" jack.
3. If measuring a voltage above 1000V, insert the red test lead into the "2500v" jack.
4. Check the needle position and the get the reading on V.A scale.
Note: Measuring high voltage at 2500V range, should be wear rubber insulated gloves on both hands and be in a dry insulated environment.
DC Current Measurement
WARNING: DO NOT APPLY VOLTAGE TO MEASURING TERMINAL WHILE RANGE SWITCH IS IN CURRENT POSITION. DO NOT ATTEMPT TO MEASURE AC CURRENT.
1. Set the selector switch to the appropriate DC mA range to be used and connect the test leads in series with the circuit or the load under measurement. If the pointer deflects to the left, reverse the probes.
5
2. Connect the BLACK test lead to the "-COM" jack and the RED test lead to the Red "+" jack for Current at/less than 0.5A. For large current max. 10A, move the red test lead to the Red "10A" jack.
3. Check the needle position and the get the reading on V.A scale. NOTE: Excessive current input across mA range will blow the fuse that must be replaced by a same fuse rating 0.5A/250V or 10A/250V. The maximum testing time once must be not more than 10sec. and pause 5min. for next time at big current load. The maximum terminal voltage drop is 250mV except for the 10A range.
NOTE: If connected incorrectly with the voltage at these ranges, quickly remove the test leads from the circuit as to avoid damage to this tester. (This tester can afford the voltage <250V DC/AC rms. for the period of 5 seconds max.)
Resistance Measurement WARNING: DO NOT APPLY VOLTAGE TO MEASURING TERMINAL WHILE RANGE SWITCH IS IN OHM POSITION.
1. Set the selector switch to the appropriate range to be used. 2. Connect the BLACK test lead to the "-COM" jack and the RED test lead to the
Red "+" jack. 3. Short the leads by touching the probes together. Pointer should read zero at
the right hand end of the upper most scale, if it doesn't, use the Ohm adjust knob on the right hand of the panel to line up the pointer with zero. (If pointer can't be brought to zero, replace battery.) 4. Connect the test leads across the resistance to be measured. 5. Take reading on the top "" scale and multiply it by the multiplication factor indicated by the selector switch. 6. If there is little or no pointer movement from the left side of the scale, reset the selector switch to higher range. The effective reading scope on an Ohm meter scale is within the area of between 25 degree of Arc left side to the Midscale and 25 degree right side to the Midscale. NOTE: If connected incorrectly with the voltage, this tester can be automatically restored to the normal working within 1 minute after taking off the test leads or the voltage load from the tester without any damage. (This tester can afford the voltage <250V DC/AC rms. for the period of 3 seconds max.)
Continuity Test WARNING: DO NOT APPLY VOLTAGE TO MEASURING TERMINAL WHILE RANGE SWITCH IS IN OHM POSITION.
Set the selector switch to the BUZZ range. Connect the test leads to two points of circuit. If the resistance is lower than 200 Ohm approx., the Beeper sounds. NOTE: Battery voltage is sufficient for Buzzer operation as long as the Zero Ohm pointer can be adjusted to the Zero scale place. NOTE: If connected incorrectly with the voltage, quickly remove the test leads
6
from the circuit as to avoid damage to this tester.. (This tester can afford the voltage <250V DC/AC rms. for the period of 3 seconds max.)
Transistor hFE and LED Test
1. Set the selector switch to the R X 10 range. FOR Measuring Transistor hFE
2. Take note the type of transistor "PNP" or "NPN" and then insert the transistor terminals of the Emitter, Base and Collector separately into the proper holes of the socket on the front panel.
3. Read the approximate hFE Value directly at the hFE scale. NOTE: Current 10A. VCE 2.8V.
4. When the Base terminal cut, the value of Leak is Iceo for Transistor. FOR Measuring LED: Insert the transistor terminals directly into the E(Up) "+" and C(Down) "-" holes of the socket on the front panel. And then check if the LED under testing is lighting.
Diode Measurement
1. Set the selector switch to the appropriate range to be used. NOTE: To test the diode while current below 0.060 mA at X 10K range; current below 0.15 mA at X 1K range; current below 1.5 mA at X 100 range; current below 15 mA at X 10 range; current below 150 mA at X 1 range.
2. For IF (forward current) test, put the BLACK test lead to the "-COM" jack and the RED test lead to the Red "+" jack. And then connect the Black probe to the Positive terminal of the Diode, the Red probe to the Negative terminal of the Diode. For IR (reverse current) test, reverse the connection.
3. Read the linear (forward voltage) VF of the diode on the LV scale.
Battery Check
1. This meter comes with two separate battery check ranges to test either DC 1.2V /2.0V /3.0V or 3.6V batteries.
2. Set the selector switch to the appropriate BATT range to be used. 3. Connect the BLACK test lead to the "-COM" jack and the RED test lead to the
Red "+" jack. 4. Connect the Red test lead to the positive end of battery and the Black one to
the negative end of the battery to be measured. 5. Take reading on the "BATT" scale and check it good or bad as per which
portion indicated. (Note: the mark section of "?" shows that the battery may be starting to decay.) NOTE: If connected incorrectly with the voltage, quickly remove the test leads from the circuit and can avoid the damage to this tester. (This tester can afford the voltage <250V DC/AC rms. for the period of 3 seconds max.)
7
Decibels Measurement
1. Set the selector switch to AC 10V range.
2. Connect the BLACK test lead to the "-COM" jack and the RED test lead to the
Red "+" jack.
3. Connect the test leads to the measuring circuit specially in series with a
0.047F/400V Metalized Polyester Capacitor. And then read the bottom Red
dB scale.
4. For more dB scope, change the selector switch to the others of ACV ranges
and make the same actions. Add the appropriate number of dB scale reading
as noted on the chart below.
NOTE: For absolute dB measurements, circuit impedance must be 600 Ohm. 0
dB = 1mw dissipated in a 600 Ohm impedance (equivalent to 0.755V across 600
Ohm)
ACV RANGE
ADD dB Number
50
14
250
28
500
34
1000
40
Capacitance Measurement
WARNING: DO NOT APPLY VOLTAGE TO MEASURING TERMINAL WHILE MAKING ANY CAPACITANCE MEASUREMENTS. BEFORE TESTING ANY CAPACITORS, DISCHARGE THE CAPACITOR COMPLETELY.
1) Set the selector switch to the C X1/X10/X100/X1K/X10K(R
X10K/X1K/X100/X10/X1) range.
2) Connect the BLACK test lead to the "-COM" jack and the RED test lead
to the Red "+" jack.
3) Connect the test leads to the capacitor to be measured (Note the polarity
of capacitor).
4) Watch the needle deflection to the right topside, and read the Red
C2000uF scale on the Dial.
TROUBLESHOOTING
Nevertheless, problems or malfunctions may occur. For this reason, the following is a description of how you can eliminate possible malfunctions yourself:
Error
Possible cause
The multimeter does not work.
No measurements possible via V/mA socket.
Are the batteries exhausted? Check the state of the batteries and the fuse 0.5A.
Is the fuse defective? Check the fuse 0.5A (fuse replacement)
8
No measurements possible via 10A socket.
No change in measured values.
Faulty measuring results are displayed.
Is the fuse defective? Check the fuse 10A (fuse replacement)
Have you selected the right measuring sockets? Is the measuring range/mode correct (AC/DC)? Has null balancing of the display or a 0 Ohm calibration for the resistance measurement been carried out? Is the batteries not properly assembled in?
MAINTENANCE Replacement for Battery and/or Fuse should only be done after the test leads have been disconnected and POWER OFF. 1. Battery Replacement
1) This tester uses 2pcs AAA size 1.5V batteries which are located under the lower battery cover together with the big tilt device on the lower part of the rear case.
2) Note the condition of the batteries using the procedure described above, if the battery needs to be replaced, open the lower tilt device on the rear case and then turn the screw and take off the cover of the battery cabinet together with the tilt device on the rear case.
3) Remove the spent batteries and replace them with a battery of the same type. Observing polarity as indicated battery polarity marking on the bottom of the battery compartments.
4) Replace the battery cabinet cover and tighten the screw.
2. Fuse Replacement
1) When the fuse needs replacement, use only UL-Listed 0.5A/250V fuse or 10A/250V fuse identical in physical size to the original type 5 x 20 mm.
2) Open the lower tilt device on the rear case and then turn the screw and take off the cover of the battery cabinet together with the tilt device.
3) The old fuses inside their holders located on the PCB can be visible and access to be removed. Then take off the melt fuses and install the new fuses into their original places.
4) Replace the battery cabinet cover and tighten the screw.
NOTE: 2pcs stand-by fuses are provided and located beside the batteries under the lower battery cover with rating marked below the fuses.
9
MT-2207
( LED 10A ) - 90 - 1.5V PH1 - - - - - 10ALED
,. - DC50V,20Kohm /V; 50V, 9Kohm/V AC 9Kohm/V - 0.25/1/2.5/10/50/250/500/1000V(2500V) - 50A/0.5m/5m/50m/500mA(10A) - 10/50/250/500/1000V(2500V) - X1/X10/X100/X1K/X10K - - - Cx1(Rx10K)/ Cx10(Rx1K)/ Cx100(Rx100)/ Cx1k(Rx10)/ Cx10k(Rx1)
- 23C5C, < 75% RH - 0C ~ 40C, < 90% RH - -10C ~ 50C, < 80% RH - mA 0.5A 250V ; 10A 10A 250V - 2x1.5V AAA - 179x 118x 50mm - 400
DCV
DC50V
0-0.25V-1V-2.5V10V-50V-250V-
±3%FSD() ±4%FSD(1000V/2500
20K/V; 50V 9K/V 0.25V/1V/2.5V/10V/50V
500V1000V(2500V)
V )
,250V Max. 250V/1000V , 1000V Max.
2500V , 2500V Max.
10
ACV
DCA
Capacitance
BATT Check LED,
0-10V-50V-250V500V1000V(2500V)
±4%FSD() ±5%FSD(1000V/2500 V )
9K/V 10V/50V , 250V Max. 250V/500V/ 1000V ,
1000V Max.
40~10KHz
2500V , 2500V Max.
250mV
0-50A -0.5mA- 5 mA-50 mA -
±3%FSD() ±4%FSD(10A )
500mA(10A)
mA F0.5A 250V 10A F10A/250V ,
10
X1:0.2~2K (20)
AC/DC250V 3
X10:2~20K
(200)
X100:20~200K (2000)
±4%ofARC()
X1K:200~2M
(20K)
X10K:2K~20M
(200K)
Cx1: 50uF Cx10: 500uF
AC/DC250V 3
Cx100: 5000uF
Cx1K:
Cx10K:
1.2V-2V-3V-3.6V: GOOD -?- BAD
8-12 AC/DV250V 3
hFE: 0-1000
×10
×10 C,E ,"+","-"
50
AC/DC250V 3
1.5VAAA : x2
11
Test () Resistance()
() DC Volt(V)
() DC CurrentA
() AC Volt(V)
hFE
Diode
Range Position
×1 ×10 ×100 ×1K ×10K
DC 0.25V 1 V
2.5V 10V 50V 250V 500V 1000V 2500V DC 50A 0.5mA
5mA 50mA 500mA 10A
AC 10V 50V 250V 500V 1000V 2500V
×10 ×10K
×1K ×100 ×10 ×1
Scale to read
250 10 250 10 50 250 50 10 250 50 50 50 50 50 10 10 50 250 50 10 250 IC/IB
Multiplied ×1 ×10 ×100 ×1000 ×10000 ×0.001 ×0.1 ×0.01 ×1 ×1 ×1 ×10 ×100 ×10 ×1 ×0.01 ×0.1 ×1 ×10 ×1 ×1 ×1 ×1 ×10 ×100 ×10 ×1 A×1 A×10 A×100
mA×1 mA×10
12
:
1. 2. 3.hFE 4. 5.VmA 6.COM 7.10A 8. 2500V 9.
1.
2. "+""-COM" 3. Rx10 4. ""
1.
1000V 2500V 2500V 2500V () 2.
13
1000V 2500V 2500V 2500V . () 2500V 4. () 10A 10 5 mA 500mA F0.5A 250V 10A 10A F10A 250V 5. () 5 (K X1000)
6. (Buzz) ()
Buzz <50ohm ,
7. AA / 1.2V,AA AAA
1.5V;CR2032 3.0V, 3.6V (GOOD)"" (BAD)
8. dB
dB 0.047F/400V 10V dB (-10dB~+22dB) 50V 14dB dB 250V 28dB 500V 34dB 1000V 40dB 1000V dB 22+40=62dB 9. hFE()(LED) "" X10 hFE
14
hFE (1) 0 -
hFE ("PNP""NPN") (2) hFE IC/IB LED (1) LED +- (2) LED 10. (1) ""X10K 0~60 A
X1K 0~150 AX100 0~1.5m AX10 0~15mAX1 0~150mA (2) "COM""+" IF() IR() IF (3) IF IR LV () 11. () a." " b."+""-" c. C
DC
15
1). 1.5V
PH1 2). PH1 F0.5A/250V F10A/250V5*20mm,
UL
2
16
MT-2207
( LED 10A ) - 90 - 1.5V PH1 - - - - - 10ALED
,. - DC50V,20Kohm /V; 50V, 9Kohm/V AC 9Kohm/V - 0.25/1/2.5/10/50/250/500/1000V(2500V) - 50A/0.5m/5m/50m/500mA(10A) - 10/50/250/500/1000V(2500V) - X1/X10/X100/X1K/X10K - - - Cx1(Rx10K)/ Cx10(Rx1K)/ Cx100(Rx100)/ Cx1k(Rx10)/ Cx10k(Rx1) - 23C5C, < 75% RH - 0C ~ 40C, < 90% RH - -10C ~ 50C, < 80% RH - mA 0.5A 250V ;10A 10A 250V - 2x1.5V AAA - 179x 118x 50mm - 400
DCV
0.25V-1V-2.5V10V-50V-250V500V1000V(2500V)
DC50V 20K/V; 50V
±3%FSD() 9K/V
±4%FSD(1000V/
2500V )
0.25V/1V/2.5V/10V/50V
250V Max;
250V/1000V ,1000V Max.
17
ACV
DCA
Capacitance BATT Check LED,
2500V , 2500V Max.
10V-50V-250V500V1000V(2500V)
±4%FSD() ±5%FSD(1000V/2 500V )
9K/V 10V/50V ,250V Max; 250V/500V/ 1000V
1000V Max.
40~10KHz
2500V , 2500V Max.
250mV
50A -0.5mA- 5 mA-50 mA 500mA, 10A
±3%FSD() mA F0.5A/250V ±4%FSD(10A ) 10A F10A/250V
,
10
X1:0.2~2K
AC/DC250V
(20)
3
X10:2~20K
(200)
X100:20~200K ±4% of ARC(
(2000) )
X1K:200~2M
(20K)
X10K:2K~20M
(200K)
C
AC/DC250V
Cx1: 50uF
3
Cx10: 500uF
Cx100: 5000uF
Cx1K: Cx10K:
8-12
1.2-2-3-3.6V: GOOD -?-BAD
AC/DV250V 3
hFE: 0-1000
×10
×10
C,E "+"
"-"
50
AC/DC 250V 3
1.5VAAA 2
18
Test () Resistance()
() DC Volt(V)
() DC CurrentA
() AC Volt(V)
hFE
Diode
Range Position
×1 ×10 ×100 ×1K ×10K
DC 0.25V 1 V 2.5V 10V 50V 250V 500V 1000V 2500V
DC 50A 0.5mA 5mA 50mA 500mA 10A
AC 10V 50V 250V 500V 1000V 2500V
×10 ×10K
×1K ×100 ×10 ×1
Scale to read
250 10 250 10 50 250 50 10 250 50 50 50 50 50 10 10 50 250 50 10 250 IC/IB
Multiplied ×1 ×10 ×100 ×1000 ×10000 ×0.001 ×0.1 ×0.01 ×1 ×1 ×1 ×10 ×100 ×10 ×1 ×0.01 ×0.1 ×1 ×10 ×1 ×1 ×1 ×1 ×10 ×100 ×10 ×1 A×1 A×10 A×100 mA×1 mA×10
19
1. 2. 3.hFE 4. 5.VmA 6.COM 7.10A 8.2500V 9.
1.
2. "+""-COM"
3. Rx10
4. ""
1.
() 3.
20
.( ) 2500V 4. () 10A 10
5 mA 500mA F0.5A 250V 10A 10A, F10A 250V 5. () (K X1000)
6. (Buzz) ()
Buzz <50,
7. AA / 1.2V,AA AAA
1.5V;CR2032 3.0V, 3.6V (GOOD)"" (BAD)
8. dB
dB 0.047F/400V 10V dB (-10dB~+22dB) 50V 14dB dB 250V 28dB 500V 34dB 1000V 40dB 1000V dB 22+40=62dB 9. hFE()(LED) "OHM" X10 hFE
21
1) 0 -
hFE
("PNP""NPN")
2) hFE IC/IB
LED
1) LED +-
2) LED
10.
1) ""X10K 0~60 A
X1K 0~150 AX100 0~1.5m AX10 0~15mAX1
0~150mA
2) "COM""+"
IF() IR() IF
3) IF IR LV ()
11.
(
)
a.
b."+""-"
c. C
22
1). 1.5V
PH1 2). PH1 (F0.5A 250V;10A 250V), UL 2
23
MT-2207
12 (
)
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)
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·
·
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130 7 5 886-2-22183233
E-mail: pk@mail.prokits.com.tw
/ 1365 25 021-68183050 400 1699 629
24
PROKIT'S INDUSTRIES CO., LTD
http://www.prokits.com.tw E-mail: pk@mail.prokits.com.tw
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