Does this test a Diode ?
1433555
It measures the forward voltage drop of a diode. Not to be confused with the capacitance measurement which is for capacitors.
505682
Yes, any ohm meter will. You check the diode in both directions. Resistance will be found in open direction and open in the other. Two opens or two resistances= bad diode.
794132
Hello,This is a great analog meter which is perfect for testing all different types of diodes but not a great tool for testing capacitors. I would highly recommend a ESR meter for testing Capacitors. Hope this helps.
2089126
Yes it does, to test, plug into a power strip and turn the power strip on and make sure the GFCI is on, hit the black test button on the GFCI and it will be off as if a power failure occured, turn the power strip back on and the GFCI clicks back to the on on or powered up position (red light lit). Hope this helps.Jeffrey Nordi
1014666
I Would Say, No. Mine Wouldn't Respond To Holding The Test Button In Even With The Batteries Installed Correctly.
964404
This tester will show any voltage across its probes, AC or DC. So, the answer is yes, it will register 3.6 if your battery is good. It is a good tester, the only downside being the letters around the dial are in dark ink on a dark background. You may need a flashlight to set the dial.
2128504
You might have... I'm certainly not a professional electrician, but mine works fine on both GFCI and regular outlets. If it's not something with your wiring, it's probably the tester!
2057525
Honestly the directions are confusing and I would put it to you this way. Unless you get a capacitor with a resistor on with a diode I think you'll be fine should you have a diode just reverse the wires so it will flow through. BUT if it flows in both directions then your self discharging capacitor has a blown diode. Other than that you can test a cap any which way I have found even though I do wonder why the lack of info. It has worked well for me and I understand it is a Made in China simplistic tool but its simple and cheap for quick diagnostics. I only use it for HVAC work.
1397549
Absolutely! As long as you can access + and - posts, this tests almost everything, including button-style and 6-volt batteries.
717020
No...used to measure circuit installation..grounding, reversed polarity, open neutral, ect.
1727838
Yes. It will test both 2 and 3 prong outlet. The 2 prong outlet will need an adapter that's available from Walmart or any hardware store for less than $1. The 2 prong outlet will show no ground.
1457883
No, it is only a 120vac outlet tester. If you some how get it plugged into a 220vac outlet, you will most-likely burn it up.
2247352
Don't know but probably not reliably. It would depend on the amplitude of the signals the tester uses to execute the tests and the nature of the circuit that the cap is in. There are lots of comments/blogs out there about this tester if you google around.
1947753
yes it will, besides you can even read the impedance value!. It also detect a loose connection between hot and neutral.
1510637
No it does not. Go back and check your wiring you might have reversed the polarity.
611639
i dont know.just hook an ammeter in series with it and a battery and you'll find out
208625
You could test it if you had a 12 volt source and wired everything up. The unit basically just needs power and a ground.