RH SPOT® - Temperature and Humidity

The Everywhere Thermo-Hygrometer, RH SPOT is the most versatile ambient temperature and humidity thermo-hygrometer on the market.

SKU:TX-5510-WH

$39.00
Color: White
In stock

RH SPOT® is a thermo-hygrometer that shows you whether an environment is actually stable by tracking both temperature and humidity together. Temperature alone doesn’t tell the whole story. In places like fridges, wine cellars, cheese caves, proofing boxes, and greenhouses, humidity matters just as much as temperature. When moisture levels drift, food dries out, mold grows, dough stalls, and wood, paper, and cork degrade. 

With a reading range from –13 to 122°F, ±1.8°F temperature accuracy, and ±2% RH accuracy in the range that matters most, RH SPOT delivers dependable data instead of guesswork. A large, auto-rotating display shows temperature and humidity at a glance, while max and min tracking reveal how both change over time. Built with an IP65 water-resistant housing, a powerful magnetic base, and an included mounting plate, RH SPOT stays in place in damp, cold, and enclosed spaces. 

  • See What Temperature Alone Can’t: Track both temperature and humidity so you know whether dough, wine, cheese, and stored food and materials are safe.
  • Built for Damp, Cold, and Enclosed Spaces: An IP65 water-resistant body handles condensation, spills, and humid storage areas.
  • Runs for Months Without Attention: A smart, light-activated display turns on when you need it and conserves power when you don’t — delivering up to 5,000 hours of battery life on a single CR2032 battery.
  • Verified for Accuracy: Every RH SPOT includes a NIST-traceable calibration certificate for both temperature and humidity.
  • Catch Drift Before It Causes Damage: Max and min memory shows the highest and lowest temperature and humidity so you can spot overnight swings and slow changes.
  • Read It Anywhere You Mount It: A large, auto-rotating display stays legible on shelves, walls, and ceilings.
  • Put RH SPOT Exactly Where It Matters: A powerful magnet and included mounting plate secure it in the precise “spot” you need to measure.

Everything you need to know about the RH SPOT® - Temperature and Humidity. Browse full specifications and additional product support details below.

Overall rating: 4.3255816 / 5 from 86 reviews.

AI Generated Review Summary

The RH SPOT® is a reliable thermo-hygrometer that tracks both temperature and humidity, providing accurate readings in various environments. Its large, auto-rotating display and IP65 water-resistant housing make it suitable for damp and enclosed spaces. Customers appreciate its ease of use, accuracy, and the ability to monitor both temperature and humidity.

Summary topics

  • Humidity Tracking (15%): A significant number of customers brought up that the RH SPOT - The Temperature & Humidity Everywhere Thermometer doesn't disappoint.
  • Temperature Accuracy (11%): Customers expressed satisfaction with the ease of use and accuracy of the thermometer, making it a popular choice.
  • Reading Accuracy (11%): Customers appreciated the accurate and reliable readings provided by this product, which meets their expectations.
  • Temperature Monitoring (14%): Opinions vary on the RH SPOT Temp/Humidity Thermometers, with some praising the ability to monitor humidity as well as temperature.
  • Device Performance (18%): Many customers expressed satisfaction with the device, describing it as great, awesome, handy, and convenient.

Review topics: ["results","quality","size","spot","light","display","battery","difference","performance","instructions","works","device","humidity","temperature","thermometer","reading","unit","instrument","system","bag of jelly beans","gift","room","magnet","switch","monitor","reason","function","tool"].

Review highlights

  • "I love my RH SPOT - The Temperature & Humidity Everywhere Thermometer."Angel G.
  • "Compact thermometer and hydrometer that seems very accurate and fast reading."Dean V.
  • "The easily read temps are great and gives me excellent readings."Paul J.

Reviews

I bought this to calibrate

"I bought this to calibrate other sensors in my house. I really thought I received a dud when it was 6% lower than all my other sensors. I did a 75% and 32% calibration check, and the RH Spot was right. All of my other sensors, including a nice one that wasn't cheap, were wrong. Good job making this!"

Matthew S. (5/5)

Terrific product

"I have several around house. Outside by each door, In my garage / shop and kitchen. Everyone knows the old rope joke. I still have them up let my friends know they don’t really have to know how to read the ropes. Just read the RH Spots."

John R. (5/5)

RH Spot

"I have these in each of my refrigerators, they help me monitor the temperature inside of the refrigerator. It is amazing how the temperature varies not only throughout the day, but on opening and closing the refrigerator doors. I had one in my old refrigerator and it never got below 40 Fahrenheit. I knew there was something wrong and yeah, it was the compressor. I also use them to monitor the humidity in each room. They are very helpful."

No L. (5/5)

It's great!

"I bought 2 and I really like them. Have compared and moved them inside and outside and in fridge, they seem to be quite accurate. I like them."

Kevin W. (5/5)

Love it!

"Love it!"

Ernest P. (5/5)

Inconsistent waste of money

"I bought 3 identical Rh spot devices for use in my house and small greenhouse. They all show different temperatures and very different humidity readings even when placed right beside each other. I expected that since these are a lot more expensive than typical Amazon units that they would work well. They don't. They are a waste of money."

James C. (1/5)

Excellent thermometer and humidity sensor

"We wanted another thermometer for our freezer - and this model was on sale. As with all ThermoWorks products the quality is excellent."

Abby F. (5/5)

RH Spot

"I use it in my fridge. Works great!"

Kathleen B. (5/5)

Just buy it. You'll be glad you did.

"Love it. Temperature and humidity in an easy-to-read, no nonsense package. I like that it can be read if stuck on the wall or ceiling. The magnet is strong, not wimpy. I also like the display alternating between temperature and humidity WITHOUT going through a series of commands or pressing a bunch of buttons. I am totally happy with it."

Mike (5/5)

. . . and now I know.

"We did not have a thermometer of any type in the house. Our home heating is not indexed to temperature numbers either. We never knew how hot any room was, what the temperature on the porch was. . . nothing. But we got these and now I know. They have functioned perfectly with one strange exception. . . I was watching TV in a dark room and there was a flash to my left. I looked over and the PH Spot had turned itself on and illuminated itself. It just did it once. Ghost."

Robert Y. (4/5)

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$39.00