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flatula
09-06-2025I bought the Travel Humidor Plastic Pouches as well. I put one Hydrometer inside the Pouches and sealed it and the other one ( because I bought the Two Pack ) outside on my desk. The one on inside is working nicely and the one outside of the Pouch is measuring the Humidity exactly as my expensive Humidity/ Barometer that I have on my desk as well. Nice Little Unit.
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D. Nash
Greater than one weekI ordered the (2) pack of the hygrometer/temp gauges to use for each of my cars. I decided to test their accuracy against other digital weather gauges I have in my house and each other. I set the 2 up near the centralized weather unit for comparison and allowed them to stabilize for 3 days. I’ve supplied a photo of the comparisons. The reading differential to each other is 0.3 degree F. and 2%. The 2%, 40% & 42%, differential between each is not within the +/- 2% advertised. The hygrometer reading 40% vs. 39% of my home weather hygrometer is within tolerance and obviously the 42% is not with its sibling or the weather hygrometer. The temp on the two siblings vs. the weather gauge is within 3%. I ordered the gauges for my cars to analyze a dry cough I’ve been having that I believe is related to the humidity differential to exterior air and house air. The price of the (2) gauges are very inexpensive and are relatively accurate. The surprise was that the two sibling hygrometer units didn’t agree within advertised tolerance. I expected the siblings to be relatively close to the weather station and closer to each other. I didn’t measure the response time and accuracy, other than the 3 day stabilizing period. So the overall rating of 4 stars reflects the 3 star rating for the tolerance differential from the advertised +/- 2% tolerance between the sibling hygrometers. The unit is good general information of temp and humidity certainly for the price.
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Haven
> 3 dayThese work well, are small and unobtrusive, and come with batteries.
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Sean Doyle
Greater than one weekWhen placed side by side they give a different reading...close by about 1 degree but being side by side the reading should be the same and it is NOT.
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James Roach
> 3 dayI grow plants in a tent, and have to check the humidity levels. These are a great value, but they dont last very long. One lasts, about the time of each grow to harvest, so I have to buy a new pair, about once per year, if I do two harvests per year, but these dont cost very much, so I think thats fine The downside is the adhesive tape, barely stays on, so be careful where you put it, or use another adhesive. it also makes it near impossible to change the battery, but these dont last long, so that isnt much of an issue The display is really easy to read, and its very accurate. Thats why I dont mind replacing them every year. These are cheap, but the value of accuracy, is paramount when growing things in a tent
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Rachael M.
> 3 dayProduct exactly as described, came with double sided tape pads, large numbers and easy to read; measurement are consistent between the two within 1 degree and consistent with my side of tank heat indicator strip within about 3 degrees. For the price, this is a reasonable set that will give you a good idea of temp and humidity. May not be exact, but then again... these things rarely are exact. For my purposes, the 1-3 degree difference is not a big deal. Also came with extra batteries which is a huge plus since they are little button batteries and I would have to order more. Now I can change them when they go out and go ahead and order new ones without having to take them out of the tank, see what kind, and then wait several days to get them. Would buy again.
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Big G
> 3 dayOk - I received the 4 pieces I ordered. Fast. See my photos - pretty damn accurate. SO NOW - I see two batteries included for EACH UNIT, even though they have good batteries already included. ALSO - Velcro strips (stick on) for each unit included. BREAKDOWN: I paid $8 for 4 Hygrometers. Shipped! Plus I got: • FREE Batteries. (4) 2-packs would cost at dollar store = $4 • FREE Velcro tape. Would cost at dollar store = $1. • Shipping = Free (How much would that cost?) *Note: Let them sit for a while before saying they arent accurate. They respond slow, but steady. For the $$? No-brainer. I mean, chances are youre checking these periodically. Not every minute. Right?
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Janet T.
> 3 dayGuitar humidification accuracy
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JAR
> 3 dayGreetings! I have tested the two temp+humidity meters that I received as part of this order. I compared temp with several other certified thermometers. Unfortunately, the temp readings from these meters are higher by 10 or more degrees F. I would be grateful for advice on how to calibrate these meters. It would be great if I can exchange my current meters for ones that work accurately. Thank you!
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Morganne
05-06-2025Worked and lasted a while