Are you looking for an indoor-outdoor thermometer to help monitor temperatures in both your home and garden?

An indoor-outdoor thermometer is a device that allows you to monitor the temperature both inside and outside your home. With our top 7 picks, it’ll be easy to make a decision as to which one may be best for you. We'll provide you with the features of each product, how well they work on different materials and surface types, their ease of use, setup time required, battery life, range accuracy & more!

Get the most reliable readings possible no matter what type of environment or material needs measuring. Easily find out weather conditions such as humidity levels inside and outside your home - so you can act accordingly. Closely monitor indoor and outdoor temperatures at all times with the help of this device – leaving nothing up to guesswork!

How We Picked the Best Options

It can be hard to find a suitable thermometer for your home, especially when you need one that works both indoors and outdoors.

There are a lot of thermometers on the market, with confusing specs and tricky user reviews. Trying to figure out what's best can feel overwhelming and exhausting.

That's why we created our list of the 7 best indoor-outdoor thermometers. We rigorously tested dozens of models and narrowed it down to these seven, so you don't have to worry about puzzling through specs or reviews yourself. Get the confidence that you have just the right thermometer for your needs!

Best Indoor Outdoor Thermometer with High-precision Temperature & Humidity Gauge

U unni Indoor Outdoor Thermometer

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What We Love About It

The U Unni indoor outdoor thermometer is a must-have for anyone who values accuracy and precision. This innovative thermometer comes with a high-precision temperature humidity gauge that is Swiss-made and extremely accurate.

The thermometer has an indoor temperature range of 14.2 F to 122 F, while the outdoor temperature range is -58 F to 158 F. The indoor-outdoor humidity range is also impressive, ranging from 1% to 99%. With such wide ranges, you can be sure that this thermometer will give you an accurate reading no matter the conditions.

It provides you with accurate readings of both outdoor and indoor temperatures and humidity levels. You can easily know when to turn on or off your air conditioning system based on the information provided by this device.

Important To Know

The Unni indoor outdoor thermometer boasts advanced patented wireless technology, providing users with more powerful and steady data transmission. This cutting-edge technology facilitates the accurate collection of temperature readings indoors and outdoors, making it an essential tool for homeowners and outdoor enthusiasts alike.

Unni's patented wireless technology is able to transmit data more effectively. Unlike other thermometers on the market that rely on traditional Bluetooth connectivity or Wi-Fi signals, this thermometer uses a dedicated radio frequency that provides greater range, stability, and accuracy.

This means users can monitor temperatures from further away without experiencing drops in signal or delays in data transmission.

Best Indoor Outdoor Thermometer That Supports 3 Temperature Sensors

ThermoPro Indoor Outdoor Thermometer 

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What We Love About It

The ThermoPro indoor outdoor thermometer allows people to keep track of the temperatures in different locations simultaneously. With this feature, you can freely monitor the temperatures in various areas such as your room, yard, cellar, greenhouse, or garden with ease.

This gives you a more accurate and comprehensive understanding of how temperature changes are affecting your environment. An indoor-outdoor thermometer that supports three temperature sensors helps you make informed decisions about how best to manage your environment.

For instance, if you have a garden or greenhouse where plants grow, it is essential to monitor the temperature accurately so they can thrive optimally.

Important To Know

One of the standout features of the ThermoPro thermometer is its rainproof sensor, which allows you to monitor outdoor temperature even on rainy days. This feature provides a lot of benefits for those who need to know the weather conditions outside.

With the rainproof sensor, you can get an accurate reading of the outdoor temperature without worrying about water damage to the device. This means that you can keep track of changes in weather patterns during rainy days and adjust your plans accordingly without leaving your home or office.

The rainproof sensor also ensures that you get reliable readings regardless of the weather conditions outside, making it a great tool for anyone looking to stay informed about their environment.

Best Indoor Outdoor Thermometer with Two Power Modes 

Newentor Weather Station Thermometer

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What We Love About It

Newentor weather station indoor outdoor thermometer comes loaded with two power modes & brightness adjustable backlight feature. This amazing thermometer allows you to save energy and prolong the battery life with its power-saving mode.

You can set the screen to always-on or power-saving mode when the adapter is plugged in. The two power modes give you complete control over your energy usage, making it an eco-friendly product while ensuring that you have accurate temperature readings throughout the year.

The brightness-adjustable backlight feature makes it easier for you to view the readings in low-light conditions. With just a simple touch of a button, you can adjust the brightness levels according to your needs.

Important To Know

The Newentor weather station indoor outdoor thermometer with its wireless color forecast station allows you to accurately predict the weather in your area for the next 12-24 hours, and even up to 7-10 days in advance.

It does this by utilizing a personal calibration process that takes into account data from the surrounding environment, resulting in an accurate and personalized forecast. The wireless color forecast station feature adds another layer of convenience as it displays the weather information on a large, easy-to-read color display screen.

The bright colors and intuitive design make it easy to quickly understand the current and future weather conditions.

Best Indoor Outdoor Thermometer That Provides Updated Data Regularly

AcuRite Indoor Outdoor Thermometer 

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What We Love About It

AcuRite indoor outdoor thermometer features regularly updated data, which allows users to get accurate readings of the temperature both inside and outside their homes. Unlike other thermometers that only update data every hour or so, AcuRite updates its data every 30 seconds, providing users with real-time information on changes in the weather.

With this feature, you can quickly adjust your indoor temperature settings based on outdoor conditions without stepping outside. This makes it easy to determine when it is safe to open windows and let fresh air in or if it's time to crank up your heating or cooling system.

Important To Know

AcuRite indoor outdoor thermometer comes with temperature trend arrows on the display to indicate whether the temperature is increasing, decreasing, or remaining constant, making it easy to know what’s happening at a glance.

These arrows are an excellent feature that allows you to make informed decisions regarding your indoor and outdoor activities based on current temperature trends. The trend arrows can help you plan your day by informing you of expected weather conditions.

You can use this information to decide whether it's safe to take a stroll outside or if you need to stay indoors due to adverse weather conditions.

Best Indoor Outdoor Thermometer That Pairs up to 39 Sub-devices

Baldr Smart Wireless Thermometer

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What We Love About It

The Baldr smart wireless indoor outdoor thermometer can now pair up to 39 sub-devices, which is a significant upgrade from the previous model that only allowed the pairing of nine sub-devices.

The ability to pair multiple devices makes it easier to monitor different areas both indoors and outdoors simultaneously. Having more sub-devices means that you can have sensors placed in different locations on your property, giving you a detailed analysis of your environment.

For instance, if you own an outdoor pool, you can attach three air temperature sensors at different positions around the pool area for accurate readings. You also get five soil moisture sensors that enable you to keep track of your garden's water levels accurately. If rain is a crucial factor in your daily routine, then this device's one rain gauge sensor will come in handy.

Important To Know

Baldr Smart wireless indoor outdoor thermometer comes with an app control feature that allows you to monitor the temperature from your smartphone, tablet, or computer. You can set alerts, view real-time forecasts, and track historical data all using the app. This makes it easy to stay informed about any changes in temperature that might affect your home or business.

The app control feature in this smart wireless indoor outdoor Thermometer is incredibly easy to use. Once you have downloaded the app, you can connect your thermometer to your phone or other device via Bluetooth. From there, you can access all of its features right from your phone's screen.

Best Indoor Outdoor Thermometer That is Practical and Essential for Every House

Geevon Indoor Outdoor Thermometer 

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What We Love About It

Geevon indoor outdoor thermometer comes packed with features that are designed to help you manage your day-to-day life better. With an in-built alarm clock (12/24H), a snooze function, and a calendar, you can keep track of the time and date without any hassle. The tabletop or wall-mountable design of this thermometer adds to its convenience by allowing you to place it wherever you want.

Whether you want to keep it on your desk or mount it on the wall near your front door, this indoor-outdoor thermometer makes temperature readings easy and accessible.

Important To Know

The Geevon indoor outdoor thermometer comes equipped with a 200FT 60M remote range feature that allows users to monitor temperatures from afar. This means that you can go about your daily activities while still being able to keep an eye on the temperature and humidity levels outside. You don't have to be physically present next to the thermometer, which gives you more freedom and convenience.

This indoor outdoor thermometer with a remote range of up to 200 feet is perfect for those who have large homes or offices, as well as for people who want constant updates on their outdoor environment.

Best Indoor Outdoor Thermometer with Battery Status Indicator

Vauno Hygrometer Thermometer

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What We Love About It

The Vauno hygrometer indoor outdoor thermometer is designed to display the battery status for both the main unit and the remote sensor. It helps homeowners avoid any unexpected interruptions or malfunctions that could occur when the batteries run out of juice. It helps users plan ahead for when they need to replace their batteries.

Instead of waiting until the last minute and risking an inaccurate reading or complete malfunction, users can stay on top of their battery levels and make sure they always have fresh batteries on hand. This feature ultimately saves time and money while also making temperature monitoring more convenient than ever before.

Important To Know

The Vauno hygrometer indoor outdoor thermometer comes equipped with three different mounting options: magnetic back, hanging hole, and durable tabletop stand. You can place it wherever you want without any hassle or need for tools.

Whether you prefer to hang it on a wall or place it on a tabletop or shelf, this thermometer has got you covered. Thanks to its magnet-mountable feature, you can also attach it to any metallic surface such as a refrigerator door.


Many people have questions and uncertainties regarding indoor-outdoor thermometers, making it difficult to use them properly and obtain accurate readings.

The lack of understanding about how these thermometers work can be frustrating and confusing, leading to inaccurate temperature readings and uncertainty about what clothes to wear when going outside.

To help alleviate these concerns, we've compiled a list of frequently asked questions (FAQs) and their answers to provide you with a better understanding of indoor-outdoor thermometers. By familiarizing yourself with these FAQs and their solutions, you can feel more confident in using your indoor-outdoor thermometer and rely on accurate temperature readings to inform your daily activities.

Are indoor outdoor thermometers accurate?

Yes, indoor-outdoor thermometers are accurate and reliable. They measure temperature differently compared to regular thermometers but nonetheless provide precise readings of the environment. 

To ensure accuracy, it's important to properly set up your indoor-outdoor thermometer in a well-ventilated area away from direct sunlight or any other sources of heat.

What is the difference between an outdoor and an indoor thermometer?

The main difference between an outdoor and indoor thermometer lies in how they measure temperature. Outdoor thermometers measure the ambient temperature of the environment, while indoor thermometers measure the temperature inside a room or building.

This means that outdoor thermometers are more precise and suitable for measuring temperatures outside, while indoor thermometers are best used indoors.

What is an outdoor thermometer used for?

An outdoor thermometer is used to measure the ambient temperature of the environment outside. This information can be useful for activities such as gardening, where you need to know when to plant or harvest certain crops. 

It can also help inform your decisions regarding what clothes to wear when going outside. Outdoor thermometers are perfect for checking the local weather and helping you plan your activities accordingly.

What is the maximum temperature an outdoor thermometer can measure?

The maximum temperature that an outdoor thermometer can accurately measure depends on the model and manufacturer of the thermometer. Most outdoor thermometers are capable of measuring temperatures between -40°C and 50°C (-40°F to 122°F). However, some thermometers can measure temperatures up to 70°C (158°F).

What is the range of an indoor thermometer?

The range of an indoor thermometer depends on the model and manufacturer, but it is typically between 0°C to 50°C (32°F to 122°F). Some models are capable of measuring temperatures up to 70°C (158°F).

How do I know if my thermometer is accurate?

To ensure that your thermometer is accurate, it's important to properly calibrate it. This involves adjusting the sensor so that it reads room temperature correctly and can measure temperatures accurately over a range of values. 

You can also check the accuracy by comparing the readings of two different thermometers or by measuring the temperature in an ice bath and boiling water.

How do indoor and outdoor thermometers work?

Indoor and outdoor thermometers work by measuring the movement of molecules in the air. Outdoor therm measures ambient temperature, while indoor thermometers measure temperatures inside a room or building. 

They detect infrared radiation from objects in the environment, which is then converted into electrical that can be read to determine.

What are the 4 types of thermometers?

The four main types of thermometers are bimetallic, digital, infrared, and mercury. Bimetallic thermometers measure temperature using two strips of metal that expand or contract when heated or cooled.

digital thermometers use outdoor sensors to measure electrical generated by the environment’s temperature. Infrared thermometers detect infrared radiation from objects in the environment and convert it into electrical signals that can be read. Mercury thermometers measure temperature using a column of mercury that expands or contracts based on the temperature.

Can an indoor-outdoor thermometer measure humidity levels?

Yes, many indoor-outdoor thermometers are capable of measuring both temperature and humidity levels. These models usually feature digital displays that show the current temperature and humidity readings.

What type of batteries does an indoor-outdoor thermometer require?

The type of battery required for an indoor-outdoor thermometer depends on the model and manufacturer. Most models require either AAA or AA batteries to operate. It's important to check the user manual for more specific details about the battery requirements before purchasing a thermometer.

Can an indoor-outdoor thermometer be mounted on a wall?

Yes, many indoor-outdoor thermometers come with mounting hardware so that they can be attached to a wall or other flat surface. This makes them perfect for monitoring indoor and outdoor temperature and humidity levels in an area without taking up too much space. 

Some models are designed with wireless technology so that the barometric pressure readings can also be monitored remotely from a computer or smartphone.

How far can the outdoor sensor of an indoor-outdoor thermometer be placed from the main unit?

The maximum distance that the outdoor sensor of an indoor-outdoor thermometer can be placed from the main unit depends on the model and manufacturer. Most thermometers have a range of up to 100 feet (30 meters). However, some models may have a shorter or longer range depending on their design.

Does an indoor-outdoor thermometer require any calibration?

Yes, it's important to properly calibrate an indoor-outdoor thermometer in order to ensure accurate readings. This typically involves adjusting the sensor so that it reads room temperature correctly. Some models may need to be adjusted over a range of values in order to measure temperatures accurately.

Are indoor outdoor thermometers resistant to water and other weather elements?

Yes, outdoor thermometers are designed to be resistant to water and other ambient weather elements. They are built with durable materials that can withstand extreme temperatures and are sealed to protect the inner mechanics. 

These features ensure that your thermometer will continue to function accurately, no matter the weather conditions. Some models may need extra protection from harsh weather conditions in order to ensure accurate readings.


An indoor-outdoor thermometer can be a great addition to any home. With indoor outdoor thermometer reviews, you may feel a bit overwhelmed but worry not - the seven mentioned models are some of the most reliable ones on the market and can suit any style of home perfectly.

Keep in mind that accuracy is paramount when selecting a thermometer for your needs and make sure to read the user reviews for more information about each model's accuracy.