Customer Review

114 of 141 people found the following review helpful
1.0 out of 5 stars No two the same, March 27, 2011
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This review is from: AcuRite 00613A1 Indoor Humidity Monitor (Kitchen)
Placed both together with fresh batteries from the same package. Both had different readings on humidity, both temperature readings were the same and accurate. Reversed batteries from one unit to the other and same result, readings were 6% different (ie 31% vs 37%). Left next to each other over night and same result the next day. Would not bother to purchase unless you bought 10 units and selected the best ones, even that should be verified by another accurate source. A hugh waste of time and energy, Only UPS made out on this purchase.
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Comments

Tracked by 3 customers

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Showing 1-10 of 11 posts in this discussion
Initial post: May 27, 2011 2:37:44 AM PDT
A man with two clocks will never be sure of the time... :-)

In reply to an earlier post on Oct 29, 2011 10:12:49 AM PDT
Last edited by the author on Jan 19, 2013 6:43:11 AM PST
PurrSuede says:
That's ridiculous. One wants ACCURATE temperature and humidity readings, not guessing which one might be correct....

Posted on Mar 7, 2012 10:17:36 AM PST
The humidity measurement accuracy on an inexpensive device like this is on the order of 1%. At best, the accuracy will be on the order of 10%. Thus, a measurement of 31% is essentially the same as a measurement of 37%. The manufacturer has to display humidity down to the nearest % to satisfy consumers, otherwise nobody would buy this product. If you want a device that can measure humidity with an accuracy of 1%, you'll need to spend hundreds of dollars. But why would you need such accuracy for your house?

In reply to an earlier post on Aug 30, 2012 5:21:32 AM PDT
D. Wilkinson says:
Exactly, this is to be expected at this price point. If you want something that's accurate down to 1% you need to spend a lot more, and you'll need to calibrate it.

Posted on Nov 29, 2012 11:25:40 AM PST
Wet Mars says:
The manufacturer support told me to replace batteries at an exact hour when I want to see the low temps at. Which means at all other times the low temps shown will be a joke. They also said that a 3C/5F degree inaccuracy is normal.

In reply to an earlier post on Jan 19, 2013 6:44:31 AM PST
PurrSuede says:
Even the manufactures says "inaccuracy is normal", and yet they call themselves "Acu Rite"... go figure!

Posted on May 1, 2014 8:49:54 AM PDT
Last edited by the author on May 1, 2014 8:50:21 AM PDT
J. G. Kerns says:
In this day and age, we are spoiled rotten by the quality of most of our tools. It's shocking to most of us, myself included, to be told that you're just not going to get accuracy. There are only a couple areas I know of where no one can give you a straight answer; one is the range of a two-way radio, and the other is relative humidity.

I was told by an engineer who works with multi-thousand dollar measuring equipment that they can only get relative humidity measured to about +/- 1% in lab conditions. It's cheaper to control your humidity than it is to measure it to that level of accuracy. Given the current state of technology, you'll be a lot happier and a lot wealthier if you resign yourself to +/- 5% RH accuracy. If you truly need to measure RH to a percent or less, you have my condolences.

In reply to an earlier post on May 1, 2014 9:10:07 AM PDT
Wet Mars says:
You're talking HUMIDITY and we're talking TEMPERATURE (never mentioned humidity) - big difference! Humidity +- 5% should be fine (for growers or weather scientists maybe not?), but temperature +- 5C not!

In reply to an earlier post on May 2, 2014 8:10:39 AM PDT
J. G. Kerns says:
Maybe you weren't talking about humidity, but the review on which we're all commenting is all about it. It says that temperature was spot-on between units, and humidity had a six-point swing.

In reply to an earlier post on Jul 18, 2014 9:02:37 PM PDT
Last edited by the author on Jul 18, 2014 9:04:49 PM PDT
ZoneIII says:
Actually, some others were talking about humidity. Learn to read before you make a fool of yourself next time.
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