Jim P
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Jim P 15/07/2020
Of the three I ordered all were quite accurate. I was able to improve this a bit using the volt and amp adjustments. There are no marking on the outside to indicate voltage or amperage rating, so there was no obvious why to tell them apart from the 200v version of this meter. Another issue was that it does not go below about 0.3v at which point is just reads 0.000 volts. Also it does not go below about .010 amps at which point is just reads 0.000 amps.
3pcs DC 100V 10A 0.28 Inch Mini Digital Voltmeter Ammeter 4 Bit 5 Wires Voltage Current Meter with LED Dual Display
₹896.89 ₹1,412.24
4
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Comments (0)
Jim P 12/11/2018
Wire is not 22 Gauge as advertised. Actual it size a 24 Gauge Otherwise ok.
Geekcreit 140pcs U Shape Solderless Breadboard Jumper Cable Dupont Wire For Shield
₹414.78 ₹722.33
0
Recommendations
Comments (2)

Jim P These are crap. There are not copper inside but apparently aluminum. When I cut and look as cross section there was no copper inside only white metal. Discovered this when I could not get solder to stick to them. I put this junk in the trash.

Jim P 12/11/2018
Wire is not 22 Gauge as advertised. Actual it size a 24 Gauge Otherwise ok.
Geekcreit 140pcs U Shape Solderless Breadboard Jumper Cable Dupont Wire For Shield
₹414.78 ₹722.33
0
Comments (2)
Jim P 10/06/2020
Excellent value. After brief testing everything seems to be in good order and works well. Volt and amp meter is very accurate. My only complaint so far is that the power switch is in the back.
KP184 DC Electronic Load Battery Capacity Tester RS485/232 400W 150V 40A AC220V Professional Battery Tester
₹15,459.84 ₹24,935.74
1
Recommendations
Comments (0)
Jim P 15/07/2020
Ok I think
DIGOO DG-KN95 5/10PCS KN95 4 Layers Face Mask Anti Droplets Dust Car Exhaust Foldable Breathing Protective Mask Filter Respirator
₹830.39 ₹996.63
0
Recommendations
Comments (0)
Jim P 15/07/2020
Ok I think
10pcs TIP120 NPN TO-220 Darlington Transistors Field Effect Transistor
₹414.78 ₹719.00
0
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Comments (0)
Jim P 15/07/2020
Looks good.
18650 Battery Box Rechargeable Battery Holder Board with Switch for 2x18650 Batteries DIY kit Case
₹414.78 ₹497.90
0
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Comments (0)
Jim P 15/07/2020
Works ok but minimum input needs to be about 12v not 10. Was only able to test between 10-30v input and 12-50v out and up to about 200w. Efficiency was generally between 87 and 93% over this range. While the smds board appears good, the placement of some the through hole components was a bit sloppy. Most notably the heat sink insulator on one of the power transistors was on upside-down so that transistor metal made contact with the heat sink.
DC 600W 10-60V to 12-80V Boost Converter Step Up Module Power Supply
₹1,329.12 ₹1,661.61
0
Recommendations
Comments (0)
Jim P 15/07/2020
Looks ok on initial inspection.
1pcs 6.5x14.5cm Stripboard Veroboard Uncut PCB Platine Single Side Circuit Board
₹248.53 ₹813.76
0
Recommendations
Comments (0)
Jim P 15/07/2020
They are nobs -- not much to say. They do not have any set screw.
30Pcs White Plastic For Rotary Taper Potentiometer Hole 6mm Knob
₹221.10 ₹664.14
0
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Comments (0)
Jim P 15/07/2020
Of the three I ordered one was very inaccurate being off by 2 volts at 30v and it could not be adjusted to do any better. The other two had acceptable accuracy. There are no marking on the outside to indicate voltage or amperage rating, so there was no obvious why to tell them apart from the 100v version of this meter. Another issue was that it does not go below about 0.3v at which point is just reads 0.000 volts. Also it does not go below about .010 amps at which point is just reads 0.000 amps.
3pcs DC 200V 10A 0.28 Inch Mini Digital Voltmeter Ammeter 4 Bit 5 Wires Voltage Current Meter with LED Dual Display
₹896.89 ₹1,412.24
0
Recommendations
Comments (0)
Jim P 12/07/2020
Pros: Excellent value. Works very well so far. Heats up fairly quickly. The sleep function works and is a nice feature I think. Overall very happy with unit. Cons: Power switch in back. Somewhat noisy fan. No flow through ventilation (exit holes only). Difficult to remove and replace the solder collection tube when cleaning out solder.
Pro'sKit SS-331H Electric Solder Sucker Desoldering Device Anti-static High Power Strong Suction Desoldering Pump for PCB Circuit Board Repair
₹15,792.33 ₹18,119.75
0
Recommendations
Comments (1)
Jim P 10/08/2019
Works. Tested output was limited to max of about +-23 mA to ground terminal with an input voltage between 3 to 5V before output voltage starts dropping below 12V. About 44 ma at 24 V between + and - terminal. Would buy again.
DC-DC 5V to 12V Power Supply Module 2.8V - 5.5V Input 12V Output Step Up Module DC DC Converter Board
₹174.56 ₹830.39
0
Recommendations
Comments (0)
Jim P 12/11/2018
Product works good. Voltage and Amp are pretty accurate. Amp-Hour displayed agrees very closely with my measurements.
ZB2L3 18650 Battery Capacity Tester External Load Discharge Type 1.2-12V Tester with Two 7.5 Resistors
₹512.86 ₹913.51
0
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Comments (0)
Jim P 12/11/2018
Resistance is within expected values. Operates smoothly.
WXD3-13-2W 100K 68K 47K 22K 10K 4.7K 3.3K 2.2K 1K 680 470 330 220 100 Ohm Wirewound Potentiometer
₹158.76 ₹221.94
0
Recommendations
Comments (0)
Jim P 12/11/2018
Appears to be good quality..
1M 8/10/12/14/16/18/20/22/24/26 AWG Silicone Wire SR Wire
₹154.61 ₹581.02
0
Recommendations
Comments (0)
Jim P 24/08/2018
So far it works just find. Construction quality is only fair but otherwise ok. Would buy again.
DANIU P1013 BNC Q9 Male Plug To BNC Q9 Male Plug Oscilloscope Test Probe Cable Lead 100CM
₹709.86 ₹913.51
0
Recommendations
Comments (0)
Jim P 24/08/2018
Have not tested, but package matches description
10pcs 5mm 940nm IR Infrared Diode Launch Emitter Receive Receiver LED
₹414.78
0
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Comments (0)
Jim P 24/08/2018
Nice enough heat sink. No issues except for slightly bent fin on one of them
2Pcs 150x60x25mm Aluminum Heat Sink Heatsink Cooling For Chip IC LED Power Memory Transistor
₹844.52 ₹1,412.24
0
Recommendations
Comments (0)
Jim P 24/08/2018
Ok for what they are. You need to provide your own electrical insulator between transistor and heat sink.
Aluminum Heat Sink Heat Sink For TO-220 L780xCV Three Terminal Positive Voltage Regulator
₹159.59 ₹298.41
0
Recommendations
Comments (0)

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