5 Smart Thermometers You Need In Your Greenhouse (2024)

Keeping your greenhouse at just the right temperature can be tricky. Did you know that a consistent climate is key to thriving plants? Our guide unveils five top greenhouse thermometer options to keep your greens happy and healthy year-round.

Dive in for some plant-warming tips! 🌱

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Importance of Choosing the Right Greenhouse Thermometer

Selecting an ideal greenhouse thermometer is crucial for maintaining the perfect growing environment. Your plants thrive within a specific temperature range, and even slight deviations can hinder their growth or invite pests and diseases.

A proper indoor greenhouse temperature gauge keeps you informed, enabling immediate adjustments before any damage occurs.

Accurate temperature and humidity monitoring go hand-in-hand with successful horticulture practices. With a digital hygrometer for your greenhouse, you gain precise control over the climate conditions your plants are exposed to daily.

This level of measurement precision ensures that your gardening efforts yield healthy crops regardless of the weather outside.

Top 5 Greenhouse Thermometer Options

When it comes to choosing the right thermometer for your greenhouse, there are plenty of options available. Here are some of my favorite picks with reasons why they are great.

CategoryGreenhouse Thermometer
Best All-Around ThermometerSensorPush HT1 Thermometer
Best For Large GreenhousesX-Sense Wi-Fi Thermometer
Best Budget ThermometerGovee H5075 Thermometer
Best For Medium GreenhousesGovee H5051 Thermometer
Best For Small GreenhousesSwitchBot IP65 Thermometer

#1: SensorPush HT1 Thermometer (Best All-Around Thermometer)

greenhouse thermometer

Where To Buy: Amazon

Specs & Features:
– Dimensions of 1.57″W x 1.57″H

– Weight of 0.09 Pounds

– Temperature rating of 233.15 degrees Celsius

– Connects through Bluetooth

– The app is very easy to use and intuitive so you won’t struggle with tech overwhelm

– The greenhouse thermometer is very accurate and gives you all the information you need.

– You can store data for the past hour, day, week, month, and year so you can correlate any temperature changes with the condition of your plants.

– Good price for what you get
– I struggled to initially connect to the Bluetooth, it took a few tries to get it right but now it works perfectly.


The SensorPush HT1 Wireless Digital Thermometer/Hygrometer is a top choice for anyone looking to maintain the perfect environment in their greenhouse. Developed in the USA by Cousins & Sears Creative Technologists, this compact, smart sensor is all about precision and ease. It’s designed to be super accurate, with a premium sensing component that ensures you get the most reliable data on humidity and temperature, vital for the health of your greenhouse plants.

What makes it stand out for greenhouse use is its versatility and flexibility. You can easily mount it on a wall, and it’s small enough not to be intrusive. It connects to your iPhone or Android via Bluetooth, and if you want to monitor your greenhouse conditions from anywhere, you can add a SensorPush G1 WiFi Gateway. This allows you to receive updates and alerts over the Internet, which is super handy if you’re not always around.

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The sensor covers a temperature range from -40°C to 60°C and a humidity range from 0 to 100%, catering to a wide array of greenhouse plants’ needs. Plus, it stores data for 20 days and offers unlimited storage in the app, so you can track and analyze the environment over time. The app itself is user-friendly and provides detailed graphs and the option to export data for deeper analysis.

Check Price ➡️ Amazon

#2: X-Sense Wi-Fi Smart Thermometer (Best For Large Greenhouses)

Where To Buy: Amazon

Specs & Features:
– Dimensions of 1.4″W x 3.7″H

– Weight of 14 ounces

– Temperature rating of 140 Degrees Fahrenheit

– Connects through Wi-Fi

greenhouse thermometer
– Accurate readings and very easy to use

– Love that you can hang them all around your greenhouse to get a full picture of the temperature throughout.

– Great connectivity and stable connection.
– Minimum set temperature is -4 degrees so it might go off in snowy temperatures (your plants will die here so consider a heater if you face these temperatures)

– A little bit more expensive.


The X-Sense Wi-Fi Hygrometer, model STH54, is a top-notch choice for those with large greenhouses. This smart hygrometer thermometer set, including three thermo-hygrometers and a base station, is particularly suited for expansive or multi-section greenhouses. The device’s standout feature is its capability to support up to 10 sensors, all connected through a 2.4 GHz Wi-Fi network to the X-Sense app. This means you can hang multiple sensors throughout different areas of your greenhouse, ensuring comprehensive and precise monitoring of both temperature and humidity.

Accuracy is a key strength of the X-Sense hygrometer. It boasts a Swiss-made high-precision sensor, delivering temperature readings accurate to ±0.36°F and humidity measurements within ±2% RH. The temperature range it covers is -4 to 140°F, while the humidity range spans from 0 to 100% RH, making it suitable for a wide variety of greenhouse conditions.

Another fantastic feature is the instant notification alert on the app. If the temperature or humidity levels exceed your preset parameters, you’ll be promptly informed, allowing you to react quickly to any changes that might affect your plants.

In terms of design, the X-Sense is compact and easy to place or hang anywhere in your greenhouse, thanks to its free-hanging style. The open-air transmission range of up to 1,700 ft ensures stable signal coverage across large areas.

Check Price ➡️ Amazon

#3: Govee H5075 Thermometer (Best Budget Thermometer)

greenhouse thermometer

Where To Buy: Amazon

Specs & Features:
– Dimensions of 2.5″W x 3.1″H

– Weight of 0.1 kg

– Temperature rating of 140 degrees Fahrenheit

– Connects through Bluetooth

– Great price for what you get

– Easy to use and gives you accurate readings.

– Nice sized display and it’s easy to leave in your greenhouse to get temperature readings.
– I find that there are connectivity issues with the Bluetooth

– Limited range so you need to be quite close to your greenhouse to see the temperature.


The Govee H5075 greenhouse thermometer is an excellent budget-friendly choice for anyone with a greenhouse. It’s a sleek black device that’s not only easy on the wallet but also packs a punch in terms of features. Developed by the globally recognized smart home brand Govee, this thermometer is all about bringing smart, convenient monitoring to your greenhouse.

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What makes it ideal for greenhouse use is its high accuracy, thanks to the Swiss-made sensor. It accurately measures temperature within ±0.54°F and humidity within ±3%RH. This precision is crucial for creating the perfect environment for your plants. Additionally, it refreshes data every 2 seconds, so you’re always getting the most current readings.

The device is designed to be user-friendly, with a large 3-inch LCD screen showing big numbers and indicators for different humidity levels (like dry, comfort, or wet). This means you can quickly glance at the display and get a good idea of the current conditions in your greenhouse.

One of the coolest features is its smart connectivity. Using Bluetooth, you can monitor your greenhouse conditions remotely via the Govee Home app. It sends instant alerts if the temperature or humidity goes beyond your set range, which is super helpful for keeping things under control, especially when you’re not around.

The Govee smart thermometer also offers impressive data storage and export capabilities. You can view up to 20 days of temperature and humidity records directly on the device and export up to 2 years’ worth of data in CSV format. This feature is great for tracking and analyzing environmental changes over time.

Check Price ➡️ Amazon

#4: Govee H5051 Thermometer (Best For Medium Greenhouses)

Where To Buy: Amazon

Specs & Features:
– Dimensions of 3.01 x 2.06 x 0.9 inches

– Weight of 3.21 ounces

– Temperature rating of 140 degrees Fahrenheit

– Connects through WiFi and Bluetooth

greenhouse thermometer
– High quality app and thermometer

– Really good customer service from a top company.

– Intuitive and easy to use

– Excellent battery life
– The connectivity drops sometimes when it’s bad weather but this hasn’t happened often.

– Little bit more expensive


The Govee Wi-Fi Thermometer Hygrometer H5051 is an excellent choice for those with medium-sized greenhouses. It offers a perfect blend of accuracy and convenience, making it a standout option for keeping an eye on your greenhouse conditions. The Swiss-made sensor ensures precise readings, with temperature accuracy within ±0.54℉ and humidity accuracy within ±3%, so you can trust the data it provides for your plants.

One of the key features of this device is its WiFi and Bluetooth connectivity, allowing you to monitor conditions remotely via the Govee Home app. This is especially useful if you’re not always on-site but need to stay updated on your greenhouse’s environment. You’ll get instant alerts on your phone if the temperature or humidity levels go beyond your preset values, ensuring you can quickly respond to any changes.

Another impressive feature is its data storage and export capability. The device can record and upload over two years of data to your phone via WiFi, allowing you to track and analyze environmental trends over time. You can choose different intervals for data recording and export the data in CSV format, which is great for in-depth analysis.

It’s great for a medium greenhouse because it has some seriously impressive range. It can detect subtle temperature changes in a larger surface area so you can get a great reading of the temperature in a larger greenhouse without buying more than one sensor.

Check Price ➡️ Amazon

#5: SwitchBot IP65 Thermometer (Best For Small Greenhouses)

greenhouse thermometer

Where To Buy: Amazon

Specs & Features:
– Dimensions of 1.1″W x 2.4″H

– Weight of 44 grams

– Connects via Bluetooth

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– Great price for a nice and compact thermometer

– It is high quality, waterproof and easy to use.

– High value for money and you can grab one of them for your small greenhouse which keeps costs down.
– Bluetooth connectivity is not the best, it dropped quite a few times for me.

– The data transfer is pretty slow so just be prepared that it might take a few minutes to see past data.


The SwitchBot IP65 Indoor Outdoor Hygrometer Thermometer Wireless is an excellent smart thermometer choice for small greenhouses. Its standout feature is its compact size, measuring just 2.4 x 1.1 x 0.8 inches, making it ideal for smaller spaces where every inch counts. Additionally, its lower cost makes it an attractive option for those looking to monitor their greenhouse environment without breaking the bank.

This device is designed to be highly sensitive to temperature and humidity changes, thanks to its industrial Swiss Sensirion sensor. This ensures accurate readings with a margin of ± 1.8% RH for humidity and ± 0.36° F for temperature. The device also has a rapid 4-second sampling interval, so you’re always getting up-to-date information about your greenhouse conditions. Which is great for a smaller greenhouse thermometer.

One of the most appealing aspects of the SwitchBot thermometer is its durability and versatility. It’s IP65 rated, meaning it’s dustproof and waterproof, so you don’t have to worry about it getting damaged in a greenhouse environment, which can often be humid and wet. Plus, it’s equipped with a lanyard for easy hanging, giving you flexibility in placement.

For those who love data, the SwitchBot doesn’t disappoint. It offers 68 days of on-board data storage and up to two years of in-app storage. You can even get unlimited cloud storage if you add a SwitchBot Hub. This allows for extensive data analysis, as all the data can be exported in CSV format.

Check Price ➡️ Amazon

Factors to Consider When Choosing a Greenhouse Thermometer

When selecting a greenhouse thermometer, accuracy is key to ensuring the proper monitoring of temperature and humidity levels. Consider the temperature range and durability of the thermometer as well to make sure it can withstand greenhouse conditions.

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To ensure precise temperature and humidity readings in your greenhouse, accuracy is crucial when selecting a thermometer. The accuracy of a thermometer determines how closely its measurements align with the actual environmental conditions, allowing you to make informed decisions about controlling the climate inside your greenhouse.

Look for thermometers that boast high-precision sensors and calibration features to guarantee accurate monitoring and adjustments for optimal plant growth.

When choosing the right thermometer for your greenhouse, accuracy should be a top priority to achieve reliable temperature and humidity control throughout each season. Now let’s explore another essential factor in selecting the ideal greenhouse thermometer – Temperature Range.

Temperature range

The temperature range that a greenhouse thermometer can measure is crucial for maintaining an ideal growing environment for your plants. Look for a thermometer with a wide temperature range to ensure it can accurately monitor the fluctuating temperatures in your greenhouse, from chilly nights to scorching days.

A broad temperature range will give you the flexibility to adjust and maintain optimal conditions for your plants throughout the changing seasons, preventing any sudden adverse effects due to extreme temperatures.

When choosing a greenhouse thermometer, consider the varying climates of different regions and select one with a temperature range suitable for your local weather patterns. This ensures that your chosen thermometer can effectively monitor temperature changes in line with specific climate characteristics, allowing you to make necessary adjustments as needed.

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When considering the ideal greenhouse thermometer, durability is paramount. The lifespan of the thermometer directly impacts its ability to consistently monitor temperature and humidity levels in your greenhouse.

Look for a thermometer with a sturdy construction and weather-resistant materials to withstand the varying conditions within a greenhouse environment.

Opting for a durable thermometer ensures that it can endure fluctuating temperatures, high humidity, and potential exposure to moisture without compromising its accuracy. By prioritizing durability in your selection process, you can rely on your chosen thermometer to provide consistent and reliable temperature readings over an extended period, allowing you to effectively monitor and maintain optimal growing conditions for your plants.


In conclusion, these top 5 thermometers offer accurate and reliable temperature and humidity monitoring for your greenhouse. Choose the perfect one based on your specific needs for optimal temperature control.

With durable construction and advanced features, these thermometers are essential tools for horticulture enthusiasts. Upgrade to a smart thermometer for wireless monitoring or opt for a traditional digital option – either way, you’ll be equipped to monitor maximum and minimum temperatures effectively.

Get ready to take your greenhouse climate management to the next level with one of these ideal greenhouse thermometers.

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What are the features to consider when choosing a smart thermometer for my greenhouse?

Consider digital or analogue types, indoor and outdoor monitoring capabilities, humidity display, and temperature range.

Can I use any regular household thermometer in my greenhouse?

Yes, you can use a regular household thermometer in your greenhouse as long as it provides accurate readings within the required temperature range. You also want to make sure that your thermometer has humidity readings to make sure that it is correct.

How do I maintain the accuracy of the thermometers in my greenhouse?

Regularly calibrate the thermometers using ice water or boiling water methods to ensure accurate readings. Most of the time a good quality thermometer will not need to be recalibrated on a regular basis though.

Are there specific locations to place thermometers within a greenhouse for best results?

Place thermometers at plant canopy level and near cooling or heating sources for an accurate representation of temperature conditions. It’s also good to place multiple thermometers in different regions of the greenhouse to get an accurate portrayal of the temperatures.

Will these smart thermometers work efficiently in high humidity environments within a greenhouse?

Yes, many of these thermometers are designed to withstand high humidity levels typically found in greenhouses while providing accurate readings.

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Jason Watson

My initial goal was to protect my loved ones from harmful pesticides & help them enjoy nature more. Now, I want to tell as many people as I can about what I've learned... I hope that I can inspire you to help cool our planet with your own little slice of paradise 🌱. Let's do this together!

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