5" Indoor Outdoor Hygrometer/Thermometer, Humidity Gauge Indicator Temperature Humidity Monitor, Analog Hygrometer Humidor (English Version)

Simple. Accurate reading within a minute from taking it out of the box. Registered 100% while raining. Not tacky.

Summary: 4-way comparison of different hygrometer models. Evaluation: Two main focus areas: 1) Is it accurate, and 2) can it be adjusted. For the accuracy, I adjust all of the hygrometers outdoor at 90% relative humidity, and then took them inside, and they all tracked to 60%, except for unit #4, which remained at 80%. So three tracked together, and I deemed those "relatively accurate". Unit #1: 5" Hygrometer Thermometer Indoor Outdoor [UPDATED English Version], Humidity Gauge Indicator Temperature Humidity Monitor, Analog Hygrometer Humidor for Patio, Wall Decorative, Room, Home, Office Rank: 1st Pros: a) easy to read dial, b) relatively accurate, c) reading updates quickly, d) adjustable Cons: None https://smile.amazon.com/gp/product/B07LD3PBNK Unit #2: 75mm Round Cigar Oasis Analog Hygrometer Cigar Hygrometers Cigar Hygrometer Round Cigar humidor Hygrometer Rank: 2nd Pros: a) fairly easy to read, b) relatively accurate, c) adjustable Cons: None https://smile.amazon.com/gp/product/B07H8CQVCN Unit #3: Lockdown Vault Hygrometer Rank: 3rd Pros: a) relatively accurate Cons: a) adjustment requires disassembly https://smile.amazon.com/gp/product/B004RQWLAA Unit #4: Cigar Oasis Analog Hygrometer by Western Humidor Rank: 4th Pros: None Cons: Not accurate, relative to three other units. https://smile.amazon.com/gp/product/B00JXOKPT0

Update after a few months use: The humidity reading is responsive and reasonably accurate, as long as you understand how this unit works: It measures the average humidity over the past hour, not the immediate real-time momentary humidity. If you need real-time momentary humidity information, or if you’re moving the instrument from room-to-room you’ll need a digital hygrometer (any product that uses batteries). And yes, this unit still looks great on the countertop. No way will I get rid of it! ==================== (Original review) I wanted to trash it when I first opened the box. The actual humidity outside was surely 85% to 90% with intermittent tropical rainfall that day, but this instrument was only reading a steady 60%. The instructions say to give it a couple hours(!) to self-calibrate, and the instructions also show how to manually calibrate with a small screwdriver. I have another accurate hygrometer and after moving this pair into air conditioned rooms and outside in the high humidity and tweaking the manual calibration I think it's working as well as possible now. This hygrometer has a slow-acting system. It tells you the average humidity over the past hour or two, not the humidity at this particular moment. If you're moving this around from place to place you won't get an accurate reading until you leave it in one place for a couple of hours. If there are swings in humidity during the day, such as from twilight until sunrise, or on an intermittently rainy day, this instrument is not going to tell you the humidity of each waft of air, only the average humidity over the past couple of hours. The instructions say "accurate to within +/-5%", which is more than 4% humidity variance when you get up to 85% humidity. If you take it from a cold environment (air conditioning or cold air outside) into a warm humid environment there is a period when the condensation inside the unit will cause it to read 100% humidity for an hour or two, until the internal condensation evaporates and the unit can self-calibrate to the ambient humidity level. This thing is so good looking on a tabletop, you just *want* it to work. That's why I'm keeping it. Only other negative is the (very) small dial for temperature is principally in Celsius (on the outside marks) and the inside marks for Fahrenheit are at the equivalents of each 10 degrees Celsius so you get Fahrenheit marks at 32, 50, 68, 86, and 104 degrees Fahrenheit, which is wierd. As a Fahrenheit user my brain doesn't think in increments of 18 degrees. I want the inside Fahrenheit legend to have numbers at every 10 degrees Fahrenheit (50 deg., 60 deg., etc.) plus a mark at each 5 degrees Fahrenheit. I can fairly easily tell you the temperature in Celsius from this dial, but I can't really tell you by looking what the temperature is in Fahrenheit. I need a separate thermometer somewhere to tell the temperature in Fahrenheit.

Regardless of whether it was calibrated before leaving manufacturer, it has been bounced around in boxes, by forklifts, in containers in ships, by cranes, in warehouses, in trucks and probably more than once by the classic "savage baggage handler." I do not fault the gauge for being off when first opened. I did the salt/water calibration. (1/2 cup table salt; 1/4 cup water; sealed container/bag; stable temperature) Search this process if you are unfamiliar with it. I had to adjust the gauge iteratively. I found small adjustments did overshoot when the gauge was allowed to stabilize again. I finally called it good enough and it is mighty close. I'm an engineer and wanted it perfect, finally had to admit to myself that this is not a lab instrument so do not expect it to be one! The thermometer is adjustable as well. I found it accurate out of the box and did not need adjustment. The relative humidity is large and easily read. The temperature dial is small and not easily read, but I didn't purchase this as a thermometer. The main body is metal, stainless I think. The lens is glass (I tried to scratch and whatever it is is much harder than most plastics.) The stand/foot is plastic and is attached with a phillips head screw. I like the gauge and will buy another one for in the house. The one I bought is outdoors. It is stable on its stand/foot and it does have a keyhole slot to hang (after removing the stand.)

Much better than my old electric hygrometer. Keep in my guitar room to monitor my humidifiers output.

The outer casing looks pretty sharp. However, this did not provide accurate readings, and there are vague instructions that mention the hygrometer can be calibrated. returned.

It's large - don't think of one of those small hanging oven thermometers. I can read this thing from across the room! Great buy regardless and serves the purpose in a Florida home.

Having been looking around for a moisture meter I noticed that what I saw was either too small and cheap looking or of the digital battery operated type. I wanted a big analog one, and I was pretty sure that I would have to settle for plastic. I was about to give up when I came across this guy. 1. It is brushed aluminum ( matches my big thermometer) a huge point on the plus side. 2. It is 5" plus diameter, easy to read at a distance. 3. A colorful and practical dial. 4. To my amazement it did not need to be adjusted. Both its little thermometer and its big moisture hands came spot on. I keep it out in the screened in porch and easily check out the mornings humidity while I walk by the window. I am quite happy with this . . . tool. It is a handsome thing. Get one before everything goes plastic..

It's getting harder and harder these days to find devices that aren't over-engineered to the point of absurdity. It seems everything needs to be hooked up to your phone via Bluetooth, and needs to be controllable solely via an app of dubious quality and provenance. For the average hydroponic farmer, the last thing you want is to carry your phone into your grow area - hydroponics and delicate electronic devices don't mix. There are other reasons not to use apps, of course, but anyone with an IQ above room temperature is already well-informed about that aspect. Enter this device. No setup, no batteries, no app install, no fiddling around. Just take it out of the box and you now have the power to tell the humidity and temperature at a glance. The large size means you can read it all the way across the room, even through your plants if they're not too bushy. Construction seems fairly solid, though time will tell. I don't have another hygrometer that I can compare it to for accuracy, but the temperature is within one degree Celsius of my infrared thermometer. As I change the humidity in my setup, the hygrometer responds as expected. Overall, highly recommended.

Very useful and accurate without the digital frills.. 5 star product

Works awesome wish I would've bought another.

Excellent product, price and delivery. Thank you and God Bless.

Way bigger than I expected. Oops, should've read the sizing! Works great though and seems like great quality.