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2.26” LARGE LCD SCREEN DISPLAY
Double display: temperature and humidity, with backlight function. The user-friendly large-screen design allows you to quickly and easy viewing readings on the large 2.26-inch screen.
HIGH ACCURACY SENSOR
With a built-in Switzerland high precision temperature and humidity sensor for measuring temperature, humidity, wet bulb, and dew point, without complicated instructions, extremely simple to use.
ABS PROTECTIVE CAP
The ABS Protective cap can protect the probe head from external damage, greatly prolongs the service life, and reduces the number of replacements.
POWER SAVING
Automatic power off after 30 minutes when there is no operation, better power saving, and has a low battery alert function, a timely reminder that it is time to replace the battery.
FAQ
- Q: How do I use this psychrometer to get a wet bulb?
- A: You just push the DP/WB button and it cycles through temperature, relative humidity (RH), dew point, and wet bulb temperature, all in Fahrenheit and Celsius. You don't have to get it or anything to get the wet-bulb temperature: at the end of the probe is a temperature/humidity sensor, so it measures both and calculates the wet bulb.
- Q: Can I recalibrate the hygrometer?
- A: Protmex hygrometer thermometer has been calibrated correctly before leaving the factory. If you want to calibrate it, we will provide you with a calibration guide. We suggest professional engineers calibrate the digital temperature humidity meter.
- Q: How long does the humidity meter take to give an accurate reading when changing environments?
- A: It takes constant readings in real time and is subject to variations at the point of the reading (the tip). Readings are almost instantaneous. To obtain accurate measurement data, it takes 10 minutes in a stable environment, and the sampling rate is 1 time in 3 seconds.
- Q: Is there any way to have the backlight stay on constantly?
- A: Yes, it is possible to achieve the backlight function that is always on. Press the backlight button and hold it for more than 2 seconds to enable or disable the backlight function.
- Q: What type of battery does the hygrometer indoor humidity use?
- A: 1.5V AAA battery. We'll throw in three batteries. Protmex HT607 humidity range: 0.0% ~99.9%RH
- Accuracy: 20%~ 80%: ±3.0%RH; others: ±4.0%RH
- Resolution: 0.1
- Q: Does it come with a case or a protected cap?
- A: Yes, it comes with a soft storage bag and a protected cap, which better protects the probe head from external damage, and a longer life span.
Sean Greenop
Reviewed in the United Kingdom on March 1, 2025
Brilliant device. Easy to use. Fast and accurate at taking readings. Compact size.
King David
Reviewed in the United States on February 8, 2025
Great product, well worth the price.
vallone giovanni
Reviewed in Italy on February 25, 2025
Sono molto soddisfatto del prodotto
Pietro
Reviewed in Italy on February 24, 2025
Preciso e funzionale, ottimo per misurare i db quando faccio musica
Josh
Reviewed in the United States on January 6, 2025
Not very accurate and seems to have some drift after being powered on for a while, Will give you a basic sense of what is going on though.
UserFromCanada123
Reviewed in Canada on January 28, 2025
Seems to work well. I have several digital thermometer and humidity stick up products. The reading from the Protmex reads temp: 24.5 C and humidity: 17.3. The Accurite comes the closets with 25C and 17% humidity. The ThermoPro are far off with the humidity. 25C and 12% humidity. I will be purchasing more Accurite portable stick up Temp/ Humidity products.
Kent Cooper
Reviewed in the United States on January 25, 2025
As accurate as you would like to be! Thing is a nice working machine. Was spot on with the t stat. I work in the hvac field and got curious about a cheaper option to see what I’m dealing with in some applications and it is awesome .
Robert F. DeVellis
Reviewed in the United States on January 22, 2025
It's largely a matter of faith as to whether any hygrometer is giving accurate readings. There are ways of calibrating them, but these aren't all that reliable for a variety of reasons, like the fact that calibrating at one humidity level doesn't guarantee accuracy at other humidity levels. That's due to the fact that errors are nonlinear (not always off by a constant amount). Errors can be small (or even zero) over some portion of the range and large at others. Most home calibration methods, like the salt method, calibrate at the high extreme of the range, when our concern may be for accuracy elsewhere in the range.That issue is a tough one to get around, but digital sensors seem to have gotten better. In any case, taking any value of relative humidity as the gospel truth is a questionable proposition.What I look for is patterns of change in displayed RH as the environment changes and, to some degree, concurrence among multiple indicators. That's where this unit seems to excel. It gives me a reading that tracks (notice I didn't say "agrees") with other devices I have and with changes in the environment, such as running the heat like crazy and/or running a humidifier. Also, repeat measurements are reasonably stable under unchanging conditions. So, the readings are reliable (notice I didn't say "accurate").The various bits of information the unit provides are convenient. For example, the dew point is sometimes more informative than the RH. This unit displays that.To sum up, even though I have no certainty that the readings this hygrometer gives me are precisely accurate RH values, I think it does about as well as you can expect in a consumer-grade product. It's consistent, easy to use, easy to read, compact, and affordable. If you need more than that, then you probably should be looking at laboratory equipment rather than something like this hygrometer. I like it and recommend it for most uses outside of a laboratory. It might even be fine in a lab but I'd need further validation tests to know that. In the real world, at affordable prices, in a convenient form factor, I think this is pretty much as good as it gets.
He who knows
Reviewed in Germany on September 26, 2024
Viele, sehr viele elektronische Feuchtemesser zeigen zu wenig an. Dieses hier stimmt überein mit einem hochpräzisen Teil von Lufft.Die Temperatuen werden meist zutreffend angezeigt, aber Feuchte nicht.Ich bin sehr zufrieden.Allerdings ein wenig peinlich, dass da billigste Zinkkohlebatterien beigefügt wurden. Ein paar Alkalines müssten dabei sein. Aber sonst nichts zu meckern.
Jack
Reviewed in the United States on August 27, 2024
Bought this to use at my soccer practices to check wet bulb temperature. Works great. Easy and simple to use. Turn it on, select Fahrenheit or Celsius, whichever you want, and let it sit for a few minutes as it stabilizes. With a touch you can switch between wet bulb temp or dew point. You also get normal temperature and humidity reading. Works great to check temperature for safety at practice.
Gadgeteer
Reviewed in the United States on June 30, 2024
This was my second attempt to purchase an inexpensive temp/humidity meter. The first one (~$20 as of today, thin black and orange model) was not great and not accurate - not recommended. This HT607 model seems great so far. Temp and humidity accuracy seems pretty good and the dewpoint and webbulb calculations seem to be accurate(ish). I think you can't go wrong for ~$30. I really like the screen - the digits are large and easy to read, and it has a fantastic backlight. This unit shows three things on the screen at once in large text: temp, humidity, and dewpoint or wetbulb (selectable). It's really nice to have all three on the screen at once. Having the backlight at the push of a button is excellent.
Tom O
Reviewed in the United States on December 30, 2024
Needed to upgrade from an older pocket combo T/H probe, thought I'd try this one since I keep it in my tool bag now, not the pocket. It's been very reliable, accurate, good easy to read layout on LCD, long battery life. For the price point, certainly recommended and think most people would like it as long as they don't want one to carry in their pocket.
joe_n_bloe
Reviewed in the United States on July 26, 2023
I don't have any high precision standards at home, because a good thermocouple device (type T) costs $100-200+ and a precision hygrometer is many times that. However, this gadget reads in a reasonable amount of time (I'd let it set 10 minutes before reading it, although a little less might be required) and it seems to be degree-ish accurate and 1-3% in humidity/dew point. It's actually hard to measure dew point with more than 2-3% accuracy so I wouldn't let that bum you out. Ground level dew points are strongly affected by microclimates anyway (did your sprinkler just run?) and indoors there are other challenges (is someone making chicken stock today?).Anyway, for a $20-30 gadget this works well, is exceptionally easy to use and has no obnoxious failings, and should satisfy the needs of people who just want an easy way to get a reasonably accurate reading of temp/RH/dew point at a random location in a few minutes.Stamp of approval from me.
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