Does this need a separate power supply or can I use the battery I am measuring?
1656005
As Frank said "Yes it does require a totally separate power supply"As Tim Said "Steer clear of this item." I also got nothing but erratic readings for voltage and current. Run like the wind and never look! back"
1656006
It powers from the power source you measure. It will come with wires to go to system positive and ground. But I really recommend you don't buy this product. I ordered two and they both gave different erratic readings for the 5 minutes they worked. Steer clear of this item.
1656007
Yes it does require a totally separate power supply for the volt amp meter then the battery you are measuring.
1883103
No, it is a simple volt meter that uses the battery you are testing to supply the needed power. It has two scales printed on the face of the meter, one for button cells and one for all others.
607046
No, this is not a power supply, only a controller. You still have to provide a separate power supply.
603200
Hi, Yes, you can use the meter power it and monitor it when connected to the same source. You can also have it be powered by another unit to measure something else. The input voltage ranges from 4.5 to 30 volts. Just make sure to not wire the unit backwards as there is no reverse voltage protection. Note that the brown (or black in some models) wire is the main (common) negative wire and the red wire is the positive power wire. The other color yellow (or white in some models) is the positive voltage measuring wire. For example, you would power the volt meter by connecting it to the brown wire to the negative terminal of the voltage supply and the red to the positive terminal of the voltage supply. You then would connect the yellow white to the positive terminal of whatever you are measuring to it and the brown wire to the negative part (you'll need to solder another to it to make a "Y" connection lead). Last remark, the little screw on the back of the unit allows you to calibrate the unit, you might want to compare and make changes to the unit with another volt meter you already know that is accurate as mine was off by 0.2 volts. I hope this helps!
1420595
It is 12 volts with a separate power supply. You would need a 240 power supply.
1882161
There is a small chain that connects the power measure to the carrier. please take a look at these links.https://www.youtube.com/watch?feature=player_embedded&v;=-l6zHscC9Zohttp://leeprecision.com/load-master-help-videos.html
1419464
i don't think that will work as you would be measuring micro voltage , you may need a galvanometer
611639
i dont know.just hook an ammeter in series with it and a battery and you'll find out
723329
The power supply is an option. It uses a 9 volt battery (not supplied - no surprise there). When the power supply is used, the battery functions as a back-up.
1944358
Not sure why you would want/need to, but sure, you could use a PSU instead of the supplied power. I have yet to use anything but the supplied PS.
77770
It is all a contained unit and there isn't room for another battery in it. I would imagine you could wire one externally and have it beside the unit or behind it in the wall for better appearance. Hope this helps.
1514765
The unit I purchased came with a power supply and there was no option to purchase without one. The supply itself is a small, simple 5.9v 1a supply; not worth much of a discount if it is not included anyway.
625580
No, it doesn't need a separate power supply, it can draw the power from USB port on a laptop. If you intent to connect it to an USB hub, make sure that the USB hub can provide sufficient power. Non/low powered USB hub will not work.
2150011
You will need to connect the PSU to power source In order to power the tester
1289945
We generally just use multimeters and/or Hydrometers to check batteries, I don't think this has that capability. It's great for charging though.
1671319
If you wish to charge the included battery from an AC power source, you will need an optional power supply
647739
the C wite is essentially just a power source. If everything else works with just a battery and you don't have just the C wire, then this is what you need.