how do you calibrate this meter? and does it come with the button batteries? thanks.
1891476
Comes with batteries and little screw driver to calibrate it (maybe this model doesn't I don't remember?). It works but get what you pay for and not the best quality, to calibrate it up use calibrate solution and follow directions.
860528
Sorry I can't help you on this yet. I bought these units to give me readouts on my battery supplies for my solar power system and I won't be putting the system together until this summer. The meters are in Montana at my cabin and I will be here in North Dakota working until spring. So don't have access to them or the paperwork that may have come with them.
2135066
You can order one that is calibrated. Meters typically do not come from the factory with NIST calibration certs. It is best to have them calibrated locally.
826816
I do not recall anything about calibration and I no longer have it. After spending two days with very unusual readings, I threw it in the trash. I purchased a used military compass which still works after 30 years.
1396587
I checked it with my other meter and it appears to be already calibrated. Both of my meters match.
808572
Calibration is easily done by simply rotating a small screw inside the battery compartment. Unlike higher priced sound level meters, this Wensn SLM's calibration screw is very sensitive; small rotation angles cause large changes to the calibration, so be careful and double-check your adjustment. Obviously you will need either a precision calibrator or, less reliably, an already calibrated SLM to compare sound levels to. I've checked two new Wensn SLMs when first purchased and they both were within the advertised calibration range, at least for the 1000 Hz frequency that most calibrators generate. These are less accurate though and not linear enough at the extremes of their advertised frequency range.
6029
Hi Zitch I just look up the operating instructions on line and it does not indicate that you can calibrate this gauge. I have checked mine against a few manual gauges and it was very accurate. Hope this helps. Dave.
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.
756255
I have never tried calibrating it with a thermometer close by but it seems to work well cycling my electric heaters on the ceiling. I have two of them and they they both work fine. Would buy them again.
1565889
No. The battery wouldn't last that long AND you would not get an accurate reading. I do not use this meter anymore because of the inaccuracies in the levels and pulse readings. I hope I helped you with your question.
1552178
Sorry Calvin, I think this a great meter, however, I only use it to check the voltage on my AA and AAA batteries and rechargeable batteries from Amazon..... Works Great ! Phil Pauls Valley, Oklahoma
721610
The only answer to your question that I have is that I didn't have to calibrate mine, and it seems to work correctly. This is not a hi-tech compass. It's pretty cheap overall. But if you can't afford a good one, it works in a pinch. It sticks to your window wherever it is convenient for you.
1050040
Yes, the controller buttons work with android. Not sure what you mean by battery meter.
1026025
U can zero it by touching the leads together...most meters do the same thing and depending where u r there is electricity all around as is shown on am oscilloscope.
114938
Yes it uses batteries, it comes with them. They are button batteries, i believe they are CR 2032 or 2025
1586860
It has a 4 dotted meter. You push a button and btw 1-4 dots light up to tell you how much battery life is left. I find the meter to be accurate.
498656
It came calibrated but I also had an old school fool scale that I used to verify the digital scale was correct. There is also an instruction manual.