Digital Thermometer Hygrometer ITH-10, Accurate Temperature & Humidity Monitor for Home, Versatile Indoor Temp Meter Humid Gauge, Compact Design, °C/°F Switch, Max/Min Record, Reliable Reading

Accurate

Product is working normally. i am not sure how accurate it is.

I bought two of these and compared the reading with reliable instruments. The hygrometer is within 1 percent of the expected value which is fine, but the temperature is two degrees celsius higher.

I just bought this for my cigar humidor I already have a electric gauge But i just bought this as an extra The humidity is down by 3 levels and its not accurate By temp is accurate, but temp is not the need of this as humidity level.

Stopped functioning correctly after 2 weeks. Now shows temperature and humidity with 4/5 deg of difference compared to actual

Stay away from this hygrometer, and this brand all together if you are looking for accuracy. First started with a pool thermometer from them. Absolute trash. Doesn't read right. Then I got this hygrometer to put in my cigar boxes. I've tested it under proper circumstances, and the RH reading was 7% off. That is huge discrepancy. In the world of cigars, you'd throw that in the bin. 50 dirhams is cheap and I thought I'd give it a shot. But now I'm returning it. If you want accuracy, go for the caliber iv hygrometer. I have 2 for the past two years and they are 1% off at worst.

Not very accurate and could not find the calibration button.. not ideal for cigar humidors

Works fine. I can check the humidity in the guitar case to make sure it's where I want it to be. Or in a room. These small instruments are not calibrated, so you have to check their accuracy. One way I know of is to use another hygrometer you trust and compare the results. Since your guitar case may not be humidified enough, the hygrometer lets you check the environment of the case before you put in your guitar and humidity device. No use putting the instrument in a dry case and try to keep it at 40% humidity. The water in the humidity pack will simply equilibrate with the dry environment of the case and you will dry out your humidity pack while not getting moisture in the air around the guitar. So first, use the hygrometer to check the case's moisture, then humidify your case if you need to. Unfortunately, small measurement devices are prone to being uncalibrated. So you have to calibrate it to see how far off it is. You can do with with the salt test and then make a note on your reading versus reality: this little unit is not able to be adjusted. A salt test is an easy test that basically puts your hygrometer into an isolated 75% RH (relative humidity) environment, in which you can then determine how inaccurate the reading is and adjust accordingly. How to do the salt test: You will need: Sandwich sized ziploc bag Bottle cap from 2 liter soda bottle Table salt (do not use fancy grey salt: plain white salt) Your hygrometer STEP 1: Fill cap 3/4 of the way up with table salt STEP 2: Add filtered or distilled water (not tap) to the bottle cap and saturate the salt. Make a slurry (slushy mix) No water should be floating on top of the salt slurry. STEP 3: Place the hygrometer and cap with salt/water mixture inside of the ziploc bag. STEP 4: Let cap and hygrometer sit in closed bag for 6 hours. It should read 75% after this time. If your hygrometer reads 80%, subtract five points from any reading. If it reads 70%, add five points. If you want to be fancy, you can buy a test kit: Boveda One-Step Hygrometer Calibration Kit - 75% RH - Standard Small The advantage of this is you can do a 32% test, because the inaccuracy of the hygrometer may not be linear and if you are reading for near 40%, it may be better to test at the lower portion of the scale. I keep the hygrometer, which is no bigger than several sticks of gum, in the small compartment in the case--under the neck. It's there to make sure the case is always at the right level of humidification.

Very impressed. I performed a salt test with it and it was perfectly accurate. Impossible to beat for the price.

It looks ok, but for sure, I can confirm you my impression after using it this summer in July.

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Works well to ensure acoustic guitar humidity levels are maintained with appropriate range.