8 Best Rated Indoor Outdoor Thermometers of 2022 – Unbiased Reviews

O utdoor thermometers help you monitor the weather to determine the trend and plan the day. On the other hand, indoor models enable you to monitor the ambiance, so you will know whether you need to turn down the heat. But what if you could get a device that monitors the indoor and outdoor temp so you can check both simultaneously? Luckily, the market has a generous offer of heat meters for the interior and exterior, some enhanced with other details like humidity or time and date.

Based on sensors that collect weather data, these compact yet smart devices let you monitor and control the environment inside your house. We selected the most reliable ones, so you will be able to pick from the ones that are worth taking into account. Check them out in the following and choose the best fit for your demands and budget. Before we rank and review our selected products, let’s briefly talk about the indoor temperature you should strive to maintain.

What Is the Healthiest Indoor Temperature?

Deciding at what temperature you should set the thermostat can be a big headache, especially if you don’t live alone. Aside from the fact that you have to factor in how everyone prefers the temperature, there are cost considerations. Let’s face it, keeping the house warm in winter and cooler during summer isn’t cheap. However, no matter what costs are involved, you must ensure that the temperature is within healthy parameters for your body, or there will be consequences.

When your crib is cold, your whole body starts trembling, and you are one step closer to catching a nasty cold. A study regarding the relation between indoor temperature and health shows that high temperatures aren’t any better either, with “respiratory health, diabetes management and core schizophrenia and dementia symptoms” being affected in the process.

The question inevitably arises – what temperature should you try to maintain indoors? Use your trusty thermometer and, depending on the season, put the AC or heater to good use and try to aim for a temperature from 18 to 24 degrees Celsius or 64 to 75 degrees Fahrenheit, as suggested by the World Health Organization. As long as the thermometer displays stats within the range mentioned above, you can rest assured that your comfort and health aren’t at stake since there is thermal balance indoors.

Top 8 Indoor Outdoor Thermometers Compared

Photo	Product	Transmission Range	Update Frequency	Indoor Temperature Range	Outdoor Temperature Range	Temperature Reading Accuracy	Humidity Monitoring Range	Humidity Reading Accuracy	Price
Best Overall	1. ThermoPro TP67A	330 ft.	50 sec	-4°F to 158°F (-20°C to 70°C)	-31°F to 158°F (-35°C to 70°C)	±1°C (±1.8°F)	10% to 99% RH	±2~3% RH	AmazonWallmart
Editor’s Choice	2. Wittime WT-2079	328 ft.	11 sec	14.2°F to 122°F (-9.9°C to 50℃)	-40°F to 158 °F (-40°C to 70°C)	±0.4°F	1% to 99% RH	2% RH	Amazon
Best for the Money	3. Acurite 02049	165 ft.	30 sec	32°F to 122°F (0 to 50℃)	-40°F to 158°F (-40°C to 70°C)	N/A			AmazonWallmart
Best for Cold Weather	4. Inkbird ITH-20R	300 ft.	10 sec	-4°F to 140°F (-20°C to 60°C)	-58°F to 158°F (-50°C to 125°C)	±1°C (±1.8°F)	10% to 95% RH	±5% RH
Best with Clock	5. Taylor 1730 Digital Thermometer	200 ft.	12 sec	32°F to122°F (0°C to 50°C)	-40°F to 140°F (-40°C to 60°C)	N/A			AmazonWallmart
Best for RV	6. AMIR Brifit WA10	98-328 ft.	60 sec	-32°F to 140°F (0°C to 60°C )	-40°F-140°F (-40℃-60℃)	±1°C (±1.8°F)	10% to 99% RH	±5% RH	Amazon
	7. Extech 401014 Big Digit		N/A	14°F to 140°F (-10°C to 60°C)	-58°F to 140°F (-50°C to 70°C)	±1°C (±1.8°F)
	8. Baldr Wireless	100 ft.	10 sec	32°F to 122°F (0 to 50℃)	-22°F to 158°F (-30°C to 60℃)	±2°C (±3.6°F)			AmazonWallmart

1. ThermoPro TP67A

Amazon PriceWallmart Price

If you like getting the most for your money, this is the right option as it is a weather forecast and barometer. Therefore, it will calculate the temperature in real-time while also predicting the weather by analyzing the barometric pressure and showing the trends. It even displays forecast icons to provide a more intuitive means to figure out what the weather is like and get out of the house appropriately dressed.

Alternatively, if you want a more straightforward device but don’t want to give up on the ThermoPro quality guarantee, you can opt for the ThermoPro TP65 model instead. It serves as a temperature and humidity monitor and nothing more, and the wireless transmission range of this model is 200 feet. We previously ranked the TP65 3rd in our top, but once we tested the TP67A and saw how much greater this model’s potential is, we decided to upgrade our top with it since it’s the best money can buy.

Responsive and Reliable

It features 6 sensitive vents to ensure accuracy throughout, a design trait not found in other products in its price range. Furthermore, the update frequency it flaunts is 50 seconds, so you can count on it to provide reliable and accurate data each time you use it. Just make sure you keep the two components within a 330-ft. range. If you need a device that can handle a larger distance between the transmitter and receiver, we recommend the ThermoPro TP200B since it withstands a peak 500 feet wireless transmission distance. You can learn more about this product later in this review when we compare it to the TP67A and a few other ThermoPro products worth looking into.

• Multiple Locations – It can capture data from 3 sensors placed in different locations simultaneously. Know the weather conditions from 3 sites like the bedroom, backyard, and lounge area. The same convenient setup is seen in the ThermoPro TP60S, the best-selling indoor/outdoor thermometer this company has produced yet. It’s accurate, cheaply priced, and has a decent wireless transmission distance of 200 feet. Learn more about it from the comparison matrix featured later in this review.
• Rechargeable Battery – Don’t worry about purchasing batteries, as the sensor runs off a rechargeable lithium-ion battery. You can use the charger, phone, or laptop to charge it. A Low Battery icon will tell you when it’s time to connect the charger
• Display – The backlit display will allow you to view the data even in complete darkness
• In/Out Humidity – Check the moistness in the air to know when it’s time to find means of combating the dampness or lack thereof

Based on the barometric pressure, it will forecast the conditions 24 hours in advance. The radius is up to 30 miles, and you can view the conditions in different icons like cloudy, sunny, rainy, and snow. This means you will always be ready for whatever the weather has prepared for you.

Weather-Proof Sensor

The sensor is completely sealed, so you can place it outdoors without being affected by rain, snow, or sun. As it is weather-proof, it will withstand temperatures as low as -31°F, so it can be left outdoors in below-freezing temperatures or snow. Its design particularities are:

• Barometric Range – The air pressure range is between 23.62-32.48inHg
• Trend Indicator – Know whether the temperatures will drop or rise by looking at the arrow
• History Record – Compare the results by taking a look at the last temperature within 24 hours

Customer care and service are very generous and have your back for 1 year. If you register the item, you will extend that period to 3 years.

Best ThermoPro Indoor/Outdoor Thermometers Compared

We mentioned a few details about alternative indoor/outdoor use thermometers from ThermoPro. Now, we want to compare these other worthy models from the same brand to the TP67A model we picked as the market’s best. If you find that the specs of another of these ThermoPro models suit your needs better, opt for it instead. The same quality guarantee applies, and it’s made by a brand that has already built a reputation for reliability and performance, so you can’t go wrong no matter what you pick.

	ThermoPro TP67A	ThermoPro TP65	ThermoPro TP60S	ThermoPro TP200B
Picture
Price	AmazonWalmart	AmazonWalmart
Wireless Range	330’	200’	200’	500’
Indoor Temperature Range	-4°F to 158°F (-20°C to 70°C)	-4°F to 158°F (-20°C to 70°C)	-4°F to 158°F (-20°C to 70°C)	-4°F to 158°F (-20°C to 70°C)
Outdoor Temperature Range	-31°F to 158°F (-35°C to 70°C)	-58°F to 158°F (-50°C to 70°C)	-4°F to 158°F (-20°C to 70°C)	-4°F to 158°F (-20°C to 70°C)
Can Indicate Humidity	Yes, from 10% to 99%	Yes, from 10% to 99%	Yes, from 10% to 99%	Yes, from 10% to 99%
Accuracy	±1°C for temperature; ±2~3% for humidity	±1°C for temperature; ±2-3% for humidity	±1°C for temperature; ±2-3% for humidity	±1°C for temperature; ±2-3% for humidity
Sampling Time	50 seconds	45 seconds	50 seconds	50 seconds

Performance Test Results

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2. Wittime WT-2079

Amazon Price

With a great range between the sensor and the receiving monitor, you can be sure to capture the most accurate readings on the outdoor temperature. The wireless sensor transmits from 330 feet away as long as it doesn’t encounter obstacles, while the monitor also displays inside temperature and humidity levels. Thanks to the accuracy of the sensors, the temperature error is only ±0.4°F and in humidity 2%.

It’s a complex model that is more than helpful in creating a comfortable living environment for you, as it includes several other features aside from the temp monitoring:

• Weather Forecast – Through depictive icons, the device tells you how’s the weather outside
• Touchscreen Display – The 5 touch-sensitive buttons on the side make it so straightforward to control. The screen has 3 dimming light options to make it comfortable during the day and night, and it can even be turned off
• Alarm Clock and Calendar – The bottom side will show details on time and date, and you can even snooze the alarm if you want to get a few more minutes of rest
• Dual Power Supply – The sensor works on batteries, but the interior screen can be powered with batteries or the included charger
• Fast Update – While its competitors get data to update every minute or so, this device, just like the Baldr Wireless, receives new information every 10 seconds for the fastest update

It can be used in extreme weather, from – 40°F to 158°F, so don’t be afraid to leave it outside regardless of the season. The component inside the house can be either mounted on the wall or placed on the table.

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3. AcuRite 02049

Amazon PriceWallmart Price

With wireless data transmission from the outdoor sensor to the indoor monitor, this device can show temp readings so you can determine the weather for the day. They communicate from within 165 feet and update every 30 seconds to ensure accurate and personalized information from your location, twice as fast compared to the AcuRite 00782A2 model that we previously ranked 7th and now feature in a comparison table below.

Temps are shown in Celsius and Fahrenheit with the 02049 model, with trend arrows that indicate whether they are rising or dropping. Thanks to the memory function, the highest and lowest levels are recorded for the past 12, 24, 36, or 48 hours, or all-time. Both units are mountable, and the internal one is also standalone, so you can keep it in any area of the house, on a table or nightstand, as long as it receives a signal from the sensor. You can check the intensity of the signal by looking at the pictogram in the top corner of the screen.

Best AcuRite Indoor/Outdoor Thermometers Compared

Before we head on to list the pros and cons of the AcuRite 02049 and draw the inevitable conclusion of this review, we want to present you with another worthwhile thermometer from the same brand, namely the AcuRite 00782A2. We briefly discussed that updating temperature readings takes double as long compared to our pick. However, it’s accurate and reliable and might pose a better option depending on your budget. Here is a matrix where the two products are side by side. So make your choice depending on which suits you better.

	AcuRite 02049	AcuRite 00782A2
Picture
Price	AmazonWalmart	AmazonWalmart
Wireless Range	165’	200’
Indoor Temperature Range	32°F to 122°F (0°C to 50°C)	32°F to 122°F (0°C to 50°C)
Outdoor Temperature Range	-40°F to 158°F (-40°C to 70°C)	-40°F to 158°F (-40°C to 70°C)
Can Indicate Humidity	No	No
Accuracy	N/A	N/A
Sampling Time	30 seconds	60 seconds

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4. Inkbird ITH-20R

In open spaces, this Inkbird thermometer has a considerable transmission distance of up to 300 feet. From this point of view, it is close to the better-ranked ThermoPro TP67A and Wittime WT-2079, rated at 330 feet, respectively 328 feet. The external probe is waterproof, so you can use this thermometer to check the water temperature in your backyard pond or indoor fish tank.

What we liked most during testing was the dual nature of the display. At the same time, it shows indoor and outdoor readings for temperature and humidity, saving you time since you won’t have to switch settings to check on one or the other. What we weren’t big fans of was the absurdly small size of the device, though. Because of its compact size, the display is also tiny, making it difficult to see the numbers from afar. If there is a light hitting the display, it gets even worse since a glare effect is created.

Just like our top pick, it supports 3 connectable extensions. So, if you want to check the ambiance in multiple locations simultaneously, this nifty little device allows it. Seeing that the sampling rate is only 10 seconds, you are updated with the latest relative humidity and temperature stats instead of being shown old indications. And, to end on the high note that this product deserves, we mention that it can be set up as a wall-mounted or tabletop unit. So pick the setup you prefer best.

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5. Taylor 1730 Digital Thermometer

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Monitoring temperatures can’t get any simpler than this. The external sensor captures information and sends it to the internal monitor, with an upgrade frequency of 12 seconds, so you will always have access to current data. It keeps you updated with conditions better than some of its better-ranked opponents, even the Acurite 02049, which takes over 30 seconds between update frequencies. For the best communication, the two components must be placed at a maximum distance of 200 feet. Both Fahrenheit and Celsius can be selected by simply pressing the center switch.

The memory feature recalls the lowest and highest readings, allowing you to keep records of extreme temperatures. The degrees share the screen with a clock, so you can conveniently place the device on your nightstand and keep tabs on time without using multiple devices.

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6. AMIR Brifit WA10

Amazon Price

It flaunts a transmission frequency of up to 433 MHz, which means that the transmission distance spans up to 328’ in the open air. When placed in an enclosed space where obstacles are in its path, the transmission range is 98’ tops. To provide you with accurate data, the measurement will be updated every 60 seconds. Its features are:

• Display – The easy-to-view LCD will present the numbers in bold and large writing
• Temperature Units – Switch between Fahrenheit and Celsius by pressing the switch at the back
• Min/Max – Get a clear understanding of the conditions as it shows the minimum and maximum values in the last 24 hours
• Accuracy – It delivers a temperature accuracy of +/- 1.0 F
• Temperature Range – The sensor will measure temperatures as low as -40F, so you will know if it’s freezing outdoors
• In/Out Humidity – Find out how humid the interior and exterior air gets, from 10% to 99%, with 5% accuracy

The 2-way installation implies that you can either wall-mount it or place it on the table. Unlike other models, you can expect the battery life to span as much as 24 months. Moreover, it comes with a 45-day refund if you are unhappy with how it works and a 1-year service for potential flaws over time.

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7. Extech 401014 Big Digit

Unlike the rest of the thermometers we reviewed, this Extech model is wired rather than wireless. The waterproof outdoor sensor extends on a 9.6-foot-long cable that is thin enough so that you close the window on it, leaving the main unit inside the house and the sensor outside. It lacks a humidity sensor, but it won’t pose an issue if you’re not keen on this specific feature.

When it comes to the outside temperature that it handles and provides readings for, it ranges from -58 to 140 degrees Fahrenheit. Therefore, you can count on this calibrated thermometer to provide accurate readings regardless of how cold or hot it gets. And yes, with +/- 1 degree Celsius or +/- 1.8 degrees Fahrenheit accuracy, this model is far from inaccurate.

Thanks to the internal memory storage it features, it can hold records of minimum and maximum readings over time. This allows you to compare temperatures in different years for the same period. As with all tested products, it lets you switch between Celsius and Fahrenheit readings. Pick the measure that you are accustomed to. The LCD display is large and shows 1-inch large digits to make it easy for you to read from afar what the thermometer indicates. Moreover, it’s a dual display, which means that indoor and outside temperatures are shown simultaneously.

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8. Baldr Wireless Indoor/Outdoor Thermometer

Amazon PriceWallmart Price

With a slightly different design, it is impossible not to get your attention, as it’s a round-shaped model that can stand on the back bracket so you can place it at eye level anywhere in the house. It can also be mounted on the wall if you prefer. The large LCD has big and bold numbers that are easily visible. You will never mistake the indoor and outdoor sections because they are outlined with different colors: outdoor is yellow, and indoor is blue, so a glance at the screen will be enough to determine the temperature.

The data updates every 10 seconds, so you will get instant readings on current weather. Also, it has a memory setting that shows the minimum and maximum levels in the last 24 hours, along with trend arrows for an extended forecast. The interior component can be connected to three external sensors if you want to expand the monitoring outside or inside the house. Just make sure you don’t exceed the 100 feet range. Both units work on batteries, and there is an indicator on the screen telling you when it’s time to replace any of the two components.

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Indoor/Outdoor Thermometer: A Buying Guide

There are specific considerations when shopping for a thermometer that reads indoor and outdoor temperatures. Unless you are not a weather buff, chances are that you are not familiar with these essential aspects. We dedicate this section of the article to assisting you in making the right choice by shedding light on this temperature-reading tool’s essential features and specs. So, without further ado, here are the guidelines you must follow:

• Temperature Range:

  You have to consider your climate and ensure that the thermometer will handle the types of temperatures you’re generally dealing with. This is why the temperature range is the quintessential aspect to look into. So, if you know that winters typically come with temperatures down to 23 degrees Fahrenheit or -5 degrees Celsius, check to see the supported temperature range of the device and make sure it can provide readings for this sort of weather.

  Best option: We recommend an option with as large of a range as possible so that the instrument will provide temperature readings regardless of when and where you use it. The best option is definitely the Inkbird ITH-20R, rated at -58 to 257 degrees Fahrenheit for indoor and outdoor temperature readings.

• Degree Increments:

  The smaller the increment range, the better since the device will more accurately display temperature readings. You will know to the last digit exactly how the temperature fares, this high precision helping you make appropriate decisions in what concerns your weather-related activities outdoors or how you should adjust the heating or AC indoors.

  Best option: The ThermoPro TP67A is the best in this department since it can provide readings in 0.1-degree increments for both Fahrenheit and Celsius.

• Accuracy:

  This is undoubtedly the most crucial aspect of the thermometer’s performance. After all, if the instrument was unreliable, you couldn’t count on the readings it provided. If you have a device that shows both temperature and humidity, you obviously have to check and see how it fares in terms of accuracy when displaying both stats.

  Best option: The Wittime WT-2079 has a high temperature accuracy of +/- 0.4 degrees Fahrenheit and +/-2% for relative humidity.

• Transmission Range:

  Look for the transmission range specified on the product’s sheet to be as high as possible. It refers to the distance that can be kept between the transmitter and receiver while still transmitting information to one another. However, you must beware that the stat indicated on spec sheets refers to the range if there are no solid objects or wireless signals between the two. The transmission range will be shorter if these obstacles exist on their path.

  Best option: The ThermoPro TP67A since the distance between the transmitter and receiver can be as high as 330 feet.

• Optional: Humidity Monitoring:

  While not a mandatory feature, it is preferable since it provides the extra perk of monitoring an additional stat, namely humidity. Models that offer readings for both temperature and humidity are more complex and show you info on all aspects related to living conditions that matter, which is why they tend to be a bit more expensive. If you already have a hygrometer or don’t want to throw a few extra bucks for this feature, you can go without it.

  Best option: Although other models feature RH readings, we consider the Wittime WT-2079 the best since it’s the most accurate of them all.

• Multiple Sensor Support:

  If the device can support simultaneous use with multiple sensors, you can check the temperature in more locations. Evidently, the higher the number is, the better since you won’t be limited to monitoring a single site but rather multiple ones simultaneously.

  Best option: The ThermoPro TP67A can capture data from 3 different sensors, so you will keep tabs on the temperature in 3 other locations.

• Display Readability:

  The last thing you want is to squint your eyes to see the numbers displayed on the screen or have to go all the way next to the thermometer to be able to read them. This is why display and digit size matter as much as all other design and performance features. Don’t neglect this aspect, or you will have difficulty figuring out the stats shown by the device.

  Best option: The Extech 401014 Big Digit since it has the largest display and features big-sized digits that you can easily see from afar.

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Frequently Asked Questions

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Conclusion

Most of the models mentioned in this review are more than just a thermometer. As we like to provide you with more for your money, you can use the above models to measure dampness and comfort levels. In addition, each unit has a sleek and compact design, so you can place them anywhere you wish in your home. We hope to help you find the one you have been looking for, so don’t miss our final chart.

Best Indoor Outdoor Thermometer for Sale: ThermoPro TP67A

It’s not enough to know how the temperature is, as humidity is just as important to consider for your comfort and well-being. As this is a complete model from this point of view, displaying both hotness and moisture, it makes for a smart acquisition for those who want to monitor indoor and outdoor conditions. It also works as a barometer, so it’s one of the most versatile. The data it tracks is updated every 50 seconds so that you know current statistics.

It doesn’t disappoint even when it comes to the features department, providing you with all-time histories regarding indoor/outdoor temperature and dampness and records covering the last 24 hours. Moreover, due to the intense signal penetration, you can rest assured knowing that obstacles won’t be an issue as the sensor will accurately transmit the info needed to the console.

Editor’s Choice: Wittime WT-2079

This Wartime is a remarkably responsive device that transmits weather data at high speed, updating every 11 seconds. It’s one of the most truthful, with an unnoticeable 0.4F error and multiple additional readings. The screen shows the indoor humidity so you can monitor the comfort level more quickly, and you will appreciate the time and calendar functions that make it all the more practical.

Best Indoor Outdoor Thermometer with Clock: Taylor 1730 Digital Thermometer

The clock function is always helpful as it eliminates the need for several devices lying on your nightstand. This thermometer proves highly efficient in delivering detailed and precise information regarding the current and previous weather stats, and it doubles as a clock for even more convenience. This clock thermometer is slim yet easily visible, so it is quite a helper around the house.

Best Indoor Outdoor Thermometer for RV: AMIR Brifit WA10

Whenever you need a slim and accurate device for checking the weather when you are on the go, you can confidently get this one that can help you make your trips better, as it will never let the rain take you by surprise. While camped, place the sensor outside and trust it to show the current temp and humidity from a far distance, as the signal travels a long way.

Best Indoor Outdoor Thermometer for Cold Weather: Inkbird ITH-20R

Autumn and winter weather can get really harsh in regards to temperature. And if you live in an area where temperatures drop considerably, you need a thermometer that can handle the meteorological conditions. For this type of weather, the Inkbird ITH-20R is the best option since the transmitter probe withstands temperatures down to -58 degrees Fahrenheit or -50 degrees Celsius. There’s no chance that the weather will ever get bad enough for this thermometer to not handle providing readings. Furthermore, it shows humidity and temperature at a reasonable price compared to other thermos hygrometers.

Best Indoor Outdoor Thermometer for the Money: AcuRite 02049

For approximately $20, you can own and use this AcuRite thermometer to see how temperatures fare indoors and outdoors. It’s a conveniently priced product that likely doesn’t exceed your budget. Best of all, it doesn’t sacrifice quality in the slightest to uphold this budget-friendly price tag. Sure, it does lack the hygrometer function. However, if you’re interested only in knowing the temperature and not the RH, this won’t be an issue. It’s accurate and works even in freezing or scorching weather, so you can count on it all year long.