Relative humidity (RH) is the term used to describe the amount of moisture present in the air. A tool used to accurately measure humidity is called a hygrometer. There are different kinds of hygrometers available in the marketplace and they all do basically the same thing – calculate humidity levels.
Before we take a closer look at our pick of the top 5 humidity meters for indoors, let’s find out exactly what they do.
When you use a hygrometer you are looking at whether or not your home or workspace has a comfortable and safe level of humidity. For example, the ideal ‘zone’ is between 30 and 50 percent RH.
When humidity is too high, you may notice a musty smell in the air. Mold and mildew may form which can cause allergic reactions. When the humidity is too low, the air is dry, which may cause your skin to itch and crack.
The best way to regulate moisture in the air in your living or work environment is with a humidifier or a dehumidifier. Make sure that you check out our other articles on filterless humidifiers, furnace humidifiers as well as general dehumidifier information.
The Different Types of Hygrometers
There are two different types of hygrometers available for purchase for home use. They are analog or digital.
The analog style typically features an antique or rustic design. As for the inner workings, analog hygrometers are not considered as accurate as digital models. As a result, analog hygrometers require regular recalibrating.
Digital hygrometers are inexpensive to buy and are generally considered to be much more accurate than analog models. This is one reason why digital hygrometers do not require recalibration. Manufacturers of digital devices have also incorporated several additional features making one of these a multi-purpose measuring tool.
Our Top 5 Indoor Hygrometer Options
In the table below are our picks of the best hygrometers for indoor use, which we will also discuss in further detail in this article below:
- Our selection of the best indoor hygrometer options on the market
- Images, including make and model
- Most important features and specifications
- Price – average price range you will see on Amazon:
- $ = under $30
- $$ = $30-$50
- $$$ = more than $50
- Customer ratings – average customer rating you will see on Amazon. This can be handy in making your decision.
For instruments intended to measure relative humidity, hygrometers can have several additional useful features. Digital models generally contain more than analog ones. The average analog indoor humidity meter will have a more intricate outer design and less functionality. In other words, if you are looking for something that can provide a lot of data, the digital ones are your best bet.
Digital hygrometers not only record and display more information, they come in various shapes and sizes. Because of this, you will want to make sure you match the right size unit for the size of the space you wish to monitor the humidity of. For example, there are digital models made specifically for greenhouses. However, most are designed for home use.
Plus, the digital indoor humidity gauge style is considered easier to use and more convenient due to size. Some have a magnetic back so placement can be easy in tight spots. Others have built-in stands. Other features include well-lit screens with large numbers. Some feature additional readings such as indoor and/or outdoor temperatures.
Here are our picks for the top 5 best indoor hygrometer choices:
ThermoPro TP50 Hygrometer Thermometer
Powered by a single AAA battery (included) this device will give you a lot of information about the moisture content in your home. In addition to humidity and temperature readings, the air conditions are rated in three categories (dry, comfort, wet) to give you a quick reference.
The indoor temperature and humidity gauge also display high and low records for both humidity and temperature. It features a tabletop or magnetic mounting design and a 5-year warranty.
- quality product for the price
- easy to operate and to read
- keeps a record of highs and lows for long-term monitoring
- some users question the accuracy of the readings
- consumers say that the temperature should be the featured reading
- overall design smaller than may be expected
- not meant as an indoor/outdoor measuring device
For more information on the ThermoPro TP50 Hygrometer Thermometer, click here.
AcuRite 01080M Temperature & Humidity Monitor
This indoor thermometer hygrometer continuously measures conditions every ten seconds and is accurate to +/-0.5 degrees F and +/-2% relative humidity (RH) according to the manufacturer, but also has a built-in manual calibration feature. Add to this the programmable alarm to indicate high or low humidity and a 24-hour record of the high or low readings and you see that this is a multipurpose device.
The meters are easy to read and tell you with just a glance the conditions of the area you are monitoring.
- large, easy to read numbers on the display
- simple to use and operate
- easy to calibrate, if required
- accuracy seems pretty close
- limited viewing angles, difficult to read from the side
- smaller in size than expected based on photos
- temperature is not the featured reading
- no alarm to alert you to low levels
For more information on the AcuRite 01080M Temperature & Humidity Monitor, click here, and make sure you check out the video below…
Meade Instruments TM005X-M Wireless Thermo Hygrometer
This is a great looking humidity monitor with a jumbo LCD display. A wireless sensor feeds data related to temperature and humidity from as far away as 100-feet. There is also the option to add two more sensors (sold separately) for monitoring of data from more areas.
The main unit features readings for temperature and humidity that toggle back and forth. High and low records are also retained by a built-in memory so you can monitor any developing trends.
This hygrometer requires 4 different batteries to operate (2 for the sensors, 2 for the unit itself), so expect to add a little more to the cost.
- a large display is easy to see and read at a distance
- indoor/outdoor sensors read close to each other in accuracy
- range limited to line-of-sight and is affected by walls, doors, and other obstacles
- batteries not included and two of them are AA lithium
For more information on the Meade Instruments TM005X-M Hygrometer, click here.
Ambient Weather WS-07-C Wireless Thermo-Hygrometer
Designed with one remote sensor and space to add up to seven more (sold separately), this is one of the best indoor humidity monitor setups you will find.
The display has large 1.25-inch characters that can be read from a distance and features a scroll mode so you can see all the data without having to press buttons for different sensor feeds. The display shows temperature and humidity readings at all times.
Each of the remote sensors can be programmed to feed the data they collect on the same channel as the others. They can also be programmed to display either Fahrenheit or Celsius temperature readings.
- the number of sensors that can be added can create a temperature and humidity monitoring network
- allows for multiple sensors so individual rooms/areas (attic, basement) can be monitored as well as regular living areas
- easy to read the display from across a room
- the display cannot be calibrated but the sensors can
- accuracy figures can be off because the display cannot be calibrated
For more information on the Ambient Weather WS-07-C Hygrometer, click here.
Ambient Weather WS-110 Wireless Weather Station
The interesting design feature with this accurate hygrometer for home use is that the backlight colour of the display changes with the temperature. This makes knowing the conditions within your monitoring zone just a bit easier than having to read an actual temperature number. Plus, the large display has you covered by providing the date, time, indoor/outdoor temperatures, humidity and dew point readings.
This unit is also designed to accommodate multiple additional sensors. If that’s not enough, barometric pressure, daily highs/lows and a graph will tell you even more information.
If you are looking for an all-in-one indoor thermometer and humidity gauge, this would be it.
- big display that is easy to read from a distance
- all data records are visible without the need to click a button
- the graph can be configured to show different trends as recorded
- some users would rather not have moon phase information
- time not shown in large enough digits for some users
- temperature changing backlight color not favored by some consumers
- multiple sensor set up requires work to initially connect
For more information on the Ambient Weather WS-110 Weather Station, click here.
The best indoor hygrometer is the one that provides you with the data you require in keeping your home or workspace comfortable. Different models offer different levels and amounts of this kind of information with digital styles offering more data.
The main reason for having an indoor hygrometer is to monitor the moisture content in the air you are breathing. When it gets too dry or too wet, you are at the risk of several health-related issues. They range from allergic reactions and skin irritations to the formation of mold.
When the humidity registers in the range where it is too low or too high, the moisture content can be regulated to bring it back to a safe and comfortable level. The best way to control the humidity in a given area is with the use of a humidifier or dehumidifier.
Combining the use of a humidifier or a dehumidifier with an indoor hygrometer is the perfect solution. That’s because you should be able to monitor the humidity level on a regular basis. When it is in need of regulating, you can address that issue immediately.