Best Hygrometer For Guitar (2024 Update)

This product measures humidity accurately and was compared against a sophisticated measuring device to be within .1 of a percent for humidity. the only "problem" is that it reads the temperature about 1.5-2 degrees different than my other hygrometer which i know is exact. other than that it's perfect!peter10-10

Bought to display humidity in a new hard-shell case holding a 1930s Martin. Worked for a couple weeks, then quit. Exchanged it for another. Worked for a couple weeks, then quit. Bought a fresh battery and still working a month later. Accuracy probably within 10% of a higher cost Accurite humidity/temperature sensor. I guess that's probably good enough when aiming for a 45% to 55% humidity level. I wish I had purchased something else.Dan

E tech products have really helped me maintain and monitor conditions around my house. I have found them to be accurate and long lastingRich

As a new guitar player I am not only am learning to play, but learning how to care for beautiful Martin. I now know it is important to know the humidity of the environment you store your guitar in and this little device lets me know if I am mainstream a good humidity for my instrument.RitaB

I have two more of these I purchased in the past. They are great. You just open your guitar case and you can see the humidity in a second. Also, I don't wrap the holder around any of the strings; I just slip it under the strings and it seems to work fine.MVS

This product protects your guitar finish, while stored away in your case, but way too expensive in my opinion, so I started making my own.David

This is a great tool to track temperature and humidity. It's also a great value for the price.Since Summer 2022 has been a season of extreme temperatures, and since I'm sensitive to high heat and humidity, we need to track both throughout our home.We already had three similar devices, but needed one more. This one looked good, and it's actually far easier to read than others that had cost us more.It worked right out of the box. We compared it with our other, similar devices, and all gave the exact same measurements, or were no more than a degree different from one another.I especially like how light this device is, and how powerful the magnet is on the back of it. We're using this one in the kitchen, on our freezer door. The device remains firmly attached, even with frequent opening and closing of the freezer and refrigerator doors. (Well, in a heat wave, we're drinking a lot of iced and carbonated beverages to stay cool.)This is definitely a five-star item for how accurate it is, how easy it is to read, even in low-light conditions, and – of course – how affordable it is. If you need to check temperature or humidity (or both) in your home or workplace, or even outdoors on your porch, this device is ideal.Aisling D.

I recently purchased this unit due to being concerned with the effects of high humidity within our home. I purchased this particular unit primarily because of the high reviews it had received. I can attest that it deserves those reviews. This device quickly reacts to both humidity and temperature changes in the area within where it is placed. This in turn allows you to effectively evaluate your home's problem areas and then work toward a solution, if needed. Simply, it works as advertised. BUY IT!!!LifeWay

I wish there was a back light on it because I use it for my daughter's room, but that's not a deal breaker for me. I just have to tilt it towards a light and I can see it fine in the dark. I also bought one for my room and it's seems accurate. I've only measured it against the same item and my baby monitor in my daughter's room. They are usually the same or off by one degree. But they are at separate ends of her room. Also, when I have my water swamp cooler on the humidity on the screen increases, so I know that works also. I live in very dry conditions, so this is helpful.Jaimee

It is a hygrometer/thermometer: came well packaged. Comes in a very nice box and easy to understand instructions. It is sturdy and good heft, doesn't feel like a cheap toy. The light is quite intense (you won't have trouble reading the display aided by the fact that the numbers are large and clear) and as described it goes off by itself after about 15 seconds.I give them 24 hours to adjust, as I am writing this it has been about 20 hours. When I first placed the batteries it was off by 2 degrees and the humidity by about 6 points when compared with one (different brand) I already own (which is completely accurate). But it has been adjusting and now it is only off by 0.2 degrees which is negligible, and the humidity again negligible. Needless to say it shows decimals for a more precise information.Has C and F. Records lowest and highest temperature/humidity per 24 hours or all time, whichever you set. Has a kickstand and a magnet for versatility. I use the kickstand and there's no risk whatsoever of it falling down. The only thing is to press the light button you have to hold it otherwise you'll just push it back, because although hefty it is not so much that you'll avoid that. I am happy with this purchase as long as it lasts…Can't say anything about durability or battery life yet. It uses two AAA batteries. Mine came with batteries.usaglory

The moment I received this ThermoPro TP53 Hygrometer / Thermometer and opened it, I was very happy I'd chose to buy *this* unit – rather than the dozens of others i could have chosen to purchase. First words in my mind were, "Now THAT'S what I'm TALKING ABOUT!"Fashion is not my goal in any way. My needs are strictly utilitarian, but for those looking also for "Simply Understated," I think perhaps you would also find this unit a wise choice.- The packaging is very minimal and well thought out. Great 1st impression- The instructions are clear and concise- Build quality, including fit and finish is PROPER, meaning the design of the molds is excellent – features such as the little kick-stand and battery compartment cover and latch work VERY well and are accurate and concise in their function. I will note, however, that when a feature such as the little "Kick-stand" (that allows the unit to be free-standing) are very small and there-fore, far more delicate and prone to breakage if dropped on a hard surface while extended. When retracted however, the hinge assembly is VERY well protected.- The material quality of the plastic seems excellent. It is quite hard, though it's quality will only be known as time passes. I will comment if it starts degrading as, poor plastics tend to show themselves rather quickly, even if they look and perform well at first.- The display is LARGE – and *very* nicely laid out! SUPER-EASY TO READ. If you have difficulty with vision, this MAY be good, though there are so many varying degrees of sightedness, (and therefore, lack thereof as well) YMMV- The backlight is pleasing to my eye as well, and I would describe it as "Neither harsh on the eye, nor so dim I still have to struggle to see the entire display clearly." In other words – I think it's just right – 100% of the way.Now, I can't actually rate – "accuracy" – ACCURATELY – (what with me not having any lab-certified whirligigs with superconductive something-or-others), but I took it into the bathroom after a hot shower – took it out on the porch and compared with local reports nearby, and stuff like that – and it seems pretty spot-on to me! Woo-Hoo! :)I also really can't comment on battery life in any meaningful way, because I just got it a few days ago. Besides, battery life may also be a bit subjective to factors such asA.) average temperature where it is used, andB.) How often and how long the light is on.I will update if battery life proves to be a big problem, but I'm pretty confident it'll be fine. I hope so, because honestly, i really do like everything else about this purchase.WELL DONE ThermoPro!B. H.

Its too bad this well built and attractively designed sensor combo isn't as accurate as one would expect considering its looks and build quality.I purchased (4) of these sensors based on the high scores given to the device on this product page. Unfortunately, those reviewing the unit's accuracy obviously failed to properly compare the accuracy of this device to a calibrated reference RH sensor. I used a $400.00 science grade RH meter and 75% Calibration Kits for my tests of the four TP53 units I received.I used a total of (4) Boveda Calibration Packs to test my four TP53s for RH reporting accuracy. The devices were each placed inside their own calibration kit, along with a 75% Boveda Sensor Calibration Packet for 24 hours. At the end of that 24 hour period, any properly calibrated/accurate RH sensor would be reading a solid 75% RH, or would provide the user with the ability to adjust the sensor to read 75% RH.Unfortunately, all (4) of the TP53 units tested were under reporting by as much as -6%! The most accurate of the four units was reading 72%, which the manufacturer of this device considers to be within their accuracy range. This may be useable for household/curiosity applications, but if you are trying to determine the RH inside a cigar humidor which is the application I purchased these for, anything greater than a +/- 1% is too wide a range to be counted on. Especially when it comes to a sensor "Under Reporting" the actual RH of the environment in which it is placed.If the unit incorporated some form of calibration adjustment, I could have adjusted all four of these under reporting units to read the correct 75% RH and we would be golden. Unfortunately, no such calibration option is provided, so you are basically stuck with the factory adjustment the units come with, which appear to be 3 to 6% UNDER the actual RH of the measured environment.To the company's credit, upon writing to them with my findings, they quickly sent out (3) replacement units. They only sent out (3) and not (4) because they explained that the fourth unit was "only" underreporting by 3% and thus within their published +/- 3% error range. Upon receiving the three replacement units, I immediately placed all of them inside their own Boveda RH Sensor Calibration Kits and let them respond to the controlled 75% RH environment for 24 hours. At the end of the 24 hour period, I could see that (2) of the (3) replacements were underreporting by 4% and 5% RH respectively. Again… Too far out of range for my application. The third unit was under reporting by -3% RH.It was at this point that I contacted Amazon.com and arranged for the original units as well as the factory sent replacements to be returned for a full refund.This is a perfect example of a missed opportunity on the part of a manufacturer who "almost" has a great product on their hands! Apparently, in order to save on costs or perhaps some other reason they chose to NOT include the ability to recalibrate their sensor if it was deemed to be out of spec or worse. Without this basic option, which is standard on most of the popular RH sensors on the market today, this unit becomes useless curiosity instead of a viable instrument to be relied on in a host of situations, where sensor accuracy is always paramount.—————————————Anyone reading this who is looking for an accurate RH sensor for use in Cigar Humidors need look no further than the Boveda Butler! The Butler comes complete with the 75% calibration kit I mentioned above, along with a free iOS or Android App that allows the user to interface and track up to (5) Boveda Butlers at the same time. They are incredibly accurate and after the 24 hour calibration routine was completed, the companion app automatically adjusted all four sensors to read 75% RH and from that point forward were spot on with my $400.00 scientific grade RH sensor that I use with my weather station. A station that has been providing the official weather data for our rural town to NOAA and The National Weather Service for the last 12 years.2 months later, and all four sensors are still spot on with my professional RH measurement device. If any should ever drift over time, I can simply place it into the calibration kit for 24 hours and be back to 100% meter accuracy!Not bad for a product that sells online for around $20.00!The R. G.

Bought two. Photo shows them side-by-side. Appears to be designed thoughtfully, practically, and well–size; controls; features; display; durability; accuracy. Manual is in plain language. Happy with this product. …The 24hr trending feature can be reset with controls on back.Kristine

This is a great little hygrometer. The unit is a very compact size, but t's easy to read, since the screen isn't cluttered up with unnecessary data. The accuracy of the readings seems to be excellent.netshopper

I bought four of these in the same order. I then placed them in the same room and location. They all match each other in temperature and humidity. They also match to another one that I bought many months ago. I don't know the accuracy of them, but at least they are all precise with each other. So it seems the factory calibration is very good.KHOA

An excellent device for anyone who is serious about their cigars. Easy to set up and use, and you can monitor your humidor from anywhere.druid9855

These cushions are nicer than I expected for the price. Nice memory foam covered with good quality fabric. Im very pleased with them.downen1

Bought two. Photo shows them side-by-side. Appears to be designed thoughtfully, practically, and well–size; controls; features; display; durability; accuracy. Manual is in plain language. Happy with this product. …The 24hr trending feature can be reset with controls on back.Kristine

This is a great little hygrometer. The unit is a very compact size, but t's easy to read, since the screen isn't cluttered up with unnecessary data. The accuracy of the readings seems to be excellent.netshopper

I bought four of these in the same order. I then placed them in the same room and location. They all match each other in temperature and humidity. They also match to another one that I bought many months ago. I don't know the accuracy of them, but at least they are all precise with each other. So it seems the factory calibration is very good.KHOA

Easy to use, compact size. It surprised me with an "LL" reading for the humidity. Turns out the humidity was too low to measure (17% according to my VantagePro2 weather station). I guess it really doesn't matter as I'm more worried about high humidity in my gun safe.RickK

This is nice because you can keep track of the humidity near the sound-hole of the guitar. And of course use the Oasis Humidifier. I use them on all my acoustic guitars and they are the best! Colorado has very dry winters humidity wise. And to protect your investment it really helps.rheimbichner524

Very nice product, neat and fits nicely inside guitar case, can also be suspended from strings into guitar body. Be aware that import duty into UK and Royal Mail handling charge adds extra 12 to cost, payable at your local Royal Mail sorting office.fellwalker-2007

This product measures humidity accurately and was compared against a sophisticated measuring device to be within .1 of a percent for humidity. the only "problem" is that it reads the temperature about 1.5-2 degrees different than my other hygrometer which i know is exact. other than that it's perfect!peter10-10

Bought to display humidity in a new hard-shell case holding a 1930s Martin. Worked for a couple weeks, then quit. Exchanged it for another. Worked for a couple weeks, then quit. Bought a fresh battery and still working a month later. Accuracy probably within 10% of a higher cost Accurite humidity/temperature sensor. I guess that's probably good enough when aiming for a 45% to 55% humidity level. I wish I had purchased something else.Dan

Humidifier works great but the HTS has issues. The battery cover wouldn't stay on and this caused the display to go on and off and the memory wouldn't hold since the battery couldn't keep constant power to the HTS. I wouldn't purchase this unit. I would look to something else.Sartor269

The directions indicated to wet the sponge but didn't say how much. Apparently I added to much water and it started dripping all over my new guitar.Joseph

A Great Product for Your Acoustic Guitars. Keep up with the Ups and Downs of the Humidity and Temperature. Helpful for Taking Care of Your Instrument.somebodywantsthisstuff

Since this product is composed of two parts, I'll review them separately. The sponge/water reservoir that disperses the humidity is a good system. I'd rate it a 4. The special sponge holds more water than regular sponges, and the design keeps the water from dripping into the guitar. The electronics section showing temperature and humidity is junk. I'd rate it a 1 or less. I did a test of it in a dry room, with accurate measurement as 25% humidity. This junk started off showing humidity at 47%. It slowly decreased to about %37, then started increasing again back to 47%. What a lie! The intended positioning on the guitar doesn't allow me to close the guitar case, another poor feature. It'd probably break the guitar or the strings if I forced closing it with this attached. And storing the guitar in the case is the only way to go if you're concerned about humidity. The solution I've come up with is to remove the worthless electronics section (tossing it in the trash), and use a binder clip to hold the sponge reservoir to the guitar strings. This generally keeps it from falling through the sound hole. A better design would have been to have had some extendable arms to keep it above the sound hole.JR

The device holds a lot of water safely, and the hygrometer appears to be accurate. It is designed to hang from the strings into the body of the guitar so beware that if you have a "thinner than normal" guitar (or bouzouki or …) you will have to improvise a little. It also came with a bag you can use to recalibrate the hygrometer. That was a nice perk, even though I haven't needed yet.Joe

Bought this a week ago for my Martin gpc16e. So far it is working to my expectations! Pop it right into the sound hole and and takes care of business!GuitarSwine