I purchased one of there a few months ago and it is not accurate at all. I thought I was doing something wrong but everytime i use it its way off.
814580
Physics are never wrong. Excellent accuracy once it is calibrated. That is my experience.
814581
Did you calibrate it? You need to have or make a calibration sample at the correct temp and then adjust it. Mine was right on out of the box but they do vary
814582
Hello Nick, what are you using it for? I am using it for the pool and it is very accurate, but you do have to convert it from Parts Per Thousands to Parts Per million, so it will appear very low on the meter. Bob
814583
How are you verifying your calibration?Most hydrometers are calibrated for a specific temperature range. If you're trying to compare it to one of those you need to adjust for temperature. This device automatically compensates for temp (within a specific range) as long as you let your sample sit briefly before taking a reading you should be all set.That also said, you may need to periodically calibrate your refractometer. You can either use distilled water, or buy a pre-calibrated test solution. There's a small screw under the black nipple that you can then use to adjust the calibration. How are you verifying your calibration?Most hydrometers are calibrated for a specific temperature range. If you're trying to compare it to one of those you need to adjust for temperature. This device automatically compensates for temp (within a specific range) as long as you let your sample sit briefly before taking a reading you should be all set.That also said, you may need to periodically calibrate your refractometer. You can either use distilled water, or buy a pre-calibrated test solution. There's a small screw under the black nipple that you can then use to adjust the... » Read More How are you verifying your calibration?Most hydrometers are calibrated for a specific temperature range. If you're trying to compare it to one of those you need to adjust for temperature. This device automatically compensates for temp (within a specific range) as long as you let your sample sit briefly before taking a reading you should be all set.That also said, you may need to periodically calibrate your refractometer. You can either use distilled water, or buy a pre-calibrated test solution. There's a small screw under the black nipple that you can then use to adjust the calibration. « Show Less
814584
Hey you properly calibrated it by using RODI water. You must put RODI water where you use it for the saltwater then just above it is a black cap an under the cap is a screw to calibrate it. So look into the eye part then adjust it to zero then it should work fine
814585
Did you calibrate with distilled water like it recommended? If so and it's still off I'd send it back for replacement or refund. All the chineese knock offs have tendencies towards really good or occasionally defective. There not put through riguous testing before their shipped. Mine worked great.
832320
I have many times, with no issues, but you might want to check with the manufacturer for 100% accuracy!
402084
I have found them not to be very accurate. I returned my first unit for that reason. The second unit was not much better. There are better auto units available. I don't use it anymore in my office.
1348322
I have some of this problem too and not accurate at all, such a wasted of money. So, I don't use it anymore.
154269
Even it it is, don't buy it. It's a really piece of garbage. I bought it, tested it, and the readings are all random. Spend the extra few dollars and get a good one. This one you really should stay away...
819478
THis step counter does not work as it should. I would send it back and order the Yamax Power walker EX-510. It is rated as number one in accuracy. THe one you have is known to be completetly inaccurate. I do not know why Amazon continues to sell it. I threw mine away after one day.
796321
Mine seems to give accurate readings...instruction sheet in box is fairly clear and easy to follow, even for an old timer like me.
142522
yes, meter does not work very well, used for about 4 months and never was accurate, stopped using
330071
I am an RN and I bought this for my aging parents. From what I can determine, I tested it before I gave it to them it was accurate. I bought one for myself, another brand and it read the same so that is what I can tell you.
2274235
I've noticed the same thing. Not sure why, but the readings seem pretty consistent over time so I think it's accurate.
1918535
I can tell you its terrible inaccurate , the battery doesnt last and its unreliable. Wouldnt bother with it
1821077
I had one and returned it because it was totally inaccurate. I built my house and I know where the pipes are, it was showing PVC pipes in exterior walls that I KNOW are not present. I wouldn't spend any amount of money on this - and I'm a huge Dewalt fan.
65991
No send it back it is not accurate took mine to Dr . App. Big difference in reading.
1925990
I found it to be inaccurate regardless of how many pellets I shot through it. I ended up returning it.
93323
To be honest this meter never works right. It always gives me crazy readings. I've never bee able to trust it. I would return it if I could. WWW.hiselconstruction.com
1396587
I checked it with my other meter and it appears to be already calibrated. Both of my meters match.
1163072
It is not accurate. The local appliance store came to check on the temperature of my refrigerator and the Taylor thermometer was off by five degrees! Do not buy it. It does not use batteries.