Top-Rated Greenhouse Thermometer for Optimal Plant Growth

Digital Max Min Greenhouse Thermometer

As a greenhouse owner, you know how important it is to keep track of the temperature inside your plants’ sanctuary. Changes in weather can drastically affect their growth and overall health, making it essential to stay ahead of any fluctuations. 

Whether you’re an experienced grower or just starting out, having reliable greenhouse thermometers on hand is crucial for maintaining optimal conditions. In this article, we’ll introduce you to five trustworthy options that will help you maintain a healthy environment for your precious greenery all year round!

How we reviewed:

After spending hours upon hours researching and writing about the best greenhouse thermometers, we have finally come to a decision. Though there were many great products to choose from, we had to select only the very best for our readers. In order to do this, we looked at numerous factors including accuracy, durability, features, customer reviews, and price. We also contacted several experts in the field to get their opinion on the matter. After carefully considering all of this information, we have selected the five best greenhouse thermometers currently on the market.

We understand that not everyone’s needs are the same, so we’ve included a variety of different thermometers in our list. Whether you’re looking for a simple model or something more feature-rich, we’re confident that you’ll find the perfect device for your needs here. 

All of the thermometers we’ve chosen have been thoroughly reviewed by us. Our team put each device through rigorous testing to ensure that it meets our strict quality standards. We looked for accuracy, durability, ease-of-use, and of course customer reviews. By doing so, we were able to determine which ones were the best of the best.

Finally, we checked out the prices to make sure they were affordable for everyone. Each model offers an impressive list of features without breaking the bank — something we know you’ll appreciate.

We hope our list has helped you find the perfect greenhouse thermometer for your needs!

1. Digital Greenhouse Thermometer

Digital Greenhouse Thermometer

When we had the chance to try out the Digital Greenhouse Thermometer from Thermometer, and we must say, we were impressed! This thermometer is designed specifically for monitoring the high and low temperatures in a greenhouse, making it an ideal accessory for any gardener or plant enthusiast.

One of the best things about this thermometer is its digital recording feature. It records and stores both the maximum and minimum temperatures until reset by the user. This feature is incredibly useful for tracking temperature fluctuations throughout the day and night. We found it particularly helpful in ensuring that our plants were not exposed to extreme temperatures.

Another great thing about this thermometer is its ease of use. Once the plastic film is removed from the screen and the included AAA battery is inserted, the thermometer is ready to be mounted on the wall or placed in any location. This makes it a versatile tool that can be used both indoors and outdoors.

The quality of this thermometer is also top-notch. It is clear that Thermometer World takes pride in sourcing high-quality products for their customers, and this thermometer is no exception. The inclusion of the battery is also a nice touch that saves customers from having to purchase one separately.


  • Package Dimensions: ‎ 6.18 x 3.46 x 1.54 inches; 3.53 Ounces
  • Item model number: ‎ part1676
  • Batteries: ‎ 1 AAA batteries required. (included)
  • Best Sellers Rank: #50 in Weather Stations
  • Customer Reviews: 4.4 out of 5 stars (1,717 ratings)


Easy To Use, Simply Remove Plastic Film And Insert Battery
Versatile Tool Suitable For Indoor And Outdoor Use
High-Quality Product Sourced By Thermometer World


Only Measures Temperature, Does Not Offer Additional Features Or Functions

Overall Review:

We were extremely impressed with the Digital Greenhouse Thermometer from Thermometer World. As avid gardeners ourselves, we know the importance of keeping a close eye on the temperature of our plants, and this thermometer makes that task incredibly easy. But what really sets this product apart is the exceptional customer service provided by the Thermometer World team. They truly go above and beyond to ensure that their customers are satisfied with their purchase, and that level of care is something that we truly appreciate. We would not hesitate to recommend this thermometer to anyone in need of a reliable and accurate tool for monitoring the temperature in their greenhouse or indoor plants.

2. Govee Hygrometer Thermometer

Govee Hygrometer Thermometer

One thing that we really appreciated about this product is its smart features. With remote monitoring and temperature humidity graphs, this hygrometer thermometer is perfect for homes, greenhouses, and more. Plus, it’s incredibly easy to use.

The upgraded display on this room humidity gauge is also worth noting. The 3-inch bright LCD screen with large numbers makes it easy to read, and the max/min temperature humidity records and comfort indicators (dry/comfort/wet) will keep you aware of indoor humidity at any time.

We also love the smart app alerts that come with this hygrometer thermometer. You’ll receive an instant notification once the temperature or humidity is out of its preset range, so you can know the status of your bedroom, baby room, wine cellar, basement, plant nursery, or other areas, even when you’re not beside the device.


  • Batteries: ‎ 2 AAA batteries required. (included)
  • Product dimensions: ‎ 7.9 x 6.5 x 1.9 cm; 50 Grams
  • Date First Available: ‎ 9 January 2020
  • Manufacturer: ‎ Govee
  • Best Sellers Rank: 14 in Garden 
  • Customer Reviews: 4.5 out of 5 stars (192 ratings)



Smart Features, Including Remote Monitoring And Temperature Humidity Graphs
High Accuracy With Fast Refresh Time


Requires Bluetooth To Connect With The App

Overall Review:

After using the Govee Hygrometer Thermometer for some time now, we can say that we are thoroughly impressed with its performance. This product comes loaded with smart features, such as remote monitoring and temperature humidity graphs, which makes it a great fit for homes, greenhouses, and more. The upgraded display with large numbers and comfort indicators is a great addition, and the smart app alerts keep us informed about any out-of-range temperature or humidity. We highly recommend the Govee Hygrometer Thermometer to anyone in need of a reliable and easy-to-use temperature humidity monitor.

3. SensorPush Wireless Thermometer

The SensorPush is incredibly versatile, with its small and attractive design making it suitable for use just about anywhere. We could use it in our refrigerator, freezer, greenhouse, humidor, wine cellar, instrument case like guitar or violin, a piano, outside as a mini weather station, or even around the house to monitor a humidifier or thermostat in the baby nursery. The possibilities are endless!

Another great feature of the SensorPush is its flexibility. We could use the sensor and our phone via Bluetooth, or add a SensorPush G1 WiFi Gateway (sold separately) for data and alerts via the internet. With a G1 Gateway, we can get updates and push notifications when conditions exceed min/max alarm settings anywhere, view data on a computer in our web dashboard, or even ask Alexa for updates.

Powerful is the perfect word to describe the SensorPush’s line of sight Bluetooth range of 325 feet. Even with obstructions like walls or doors, we could happily monitor difficult situations like walk-in coolers, safes, inside a wall, or even on a roof. 


  • Customer Reviews: 4.5 out of 5 stars (4,798 ratings)
  • Best Sellers Rank: 28 in Hygrometers
  • Item weight: ‎0.09 Pounds
  • Batteries required: No
  • Import: ‎Imported


Versatile Design Suitable For A Wide Range Of Applications
Powerful Bluetooth Range Of 325 Feet
Long Battery Life Of Over 2 Years
Easy One-Time Setup With The Free App


Bluetooth Range May Be Reduced By Obstructions Such As Walls Or Doors

Overall Review:

We were thoroughly impressed with the SensorPush Wireless Thermometer. The device is versatile and flexible, making it suitable for a wide range of applications from refrigerators, greenhouses, wine cellars to instrument cases, and even as a mini weather station. The powerful Bluetooth range of 325 feet keeps you updated on the go. With its long battery life and easy setup, this device simplifies monitoring environmental conditions. We highly recommend this device for its reliability, accuracy, and versatility.

4. Brannan Digital Green Greenhouse Thermometer

Brannan Digital Green Greenhouse Thermometer

Introducing the Brannan Digital Green Greenhouse Thermometer – the must-have accessory for your greenhouse or indoor grow room! This thermometer is designed to monitor maximum and minimum temperatures and comes in a stylish weatherproof green plastic molding.

We found this thermometer to be a reliable and accurate tool for monitoring temperatures in our greenhouse. The high and low readings are clearly displayed, and we appreciate the option to switch between Celsius and Fahrenheit. Plus, the weatherproof design allows us to use it outdoors without any worries.


  • Package Dimensions: ‎7.24 x 4.65 x 1.97 inches; 5.61 Ounces
  • Batteries: ‎1 AAA batteries required. (included)
  • Best Sellers Rank: #186 in Weather Thermometers
  • Customer Reviews: 4.4 out of 5 stars (161 ratings)


Accurately Measures High And Low Temperatures
Easy To Read And Switch Between Celsius And Fahrenheit
Comes With A Aaa Battery Included


Limited temperature range (-20 to 50C)
Plastic construction may not be as durable as other materials

Overall Review:

We’ve been using the Brannan Digital Green Greenhouse Thermometer in our own greenhouse and we can confidently say that it’s a quality product that won’t disappoint. The accuracy and reliability of the thermometer make it an essential tool for any gardener or grower who wants to monitor the temperature in their greenhouse or indoor grow room. What’s more, the exceptional customer service from the Brannan team adds to the overall positive experience. With a guarantee of quality and a trusted brand reputation, the Brannan Digital Green Greenhouse Thermometer is a genuine recommendation that we wholeheartedly stand behind.

5. Digital Max Min Greenhouse Thermometer

Digital Max Min Greenhouse Thermometer

One of the great features of this thermometer is its digital display, making it easy to read the temperature at a glance. It also has an added traditional looking temperature scale, giving it a charming and rustic feel.

The thermometer is suitable for both indoor and outdoor use and benefits from a flip-out attached roof for extra protection from the elements. This is particularly useful for outdoor use as it helps to prevent rain and other weather conditions from damaging the thermometer.

We also love that this thermometer is a min-max thermometer, which means it is specifically designed to monitor high and low fluctuations in temperature. This is especially useful for gardeners and gardening experts who need to keep a close eye on the temperature in their greenhouse to ensure their plants are growing in optimal conditions.


  • Batteries: ‎ 1 AAA batteries required.
  • Date First Available: ‎ December 6, 2017
  • Manufacturer: ‎ Thermometer World
  • Best Sellers Rank: #203 in Weather Thermometers
  • Customer Reviews: 4.2 out of 5 stars (1,467 ratings)


Digital Display And Traditional Temperature Scale For Easy Reading
Specifically Designed To Monitor High And Low Temperature Fluctuations
Quality Guaranteed


May Not Be Suitable For Those Who Prefer A More Modern And High-Tech Design

Overall Review:

We truly believe that the Digital Max Min Greenhouse Thermometer is an excellent investment for anyone who wants to monitor the temperature in their greenhouse, garden or home. It’s not just easy to use and accurate, but also has a classic design that adds a touch of charm to any setting. We were particularly impressed with the added traditional temperature scale, which really sets it apart from other digital thermometers.


With the help of these 5 reliable greenhouse thermometers, you will never be left behind when it comes to monitoring your plants’ temperatures against mother nature. Setting up a working system is not hard – simply test and adjust as needed to ensure that your plants get the appropriate amount of light, heat, and humidity they need in order to grow healthy and strong throughout every season. Understanding why temperature indoors is important can make all the difference in making informed decisions about what varieties are suitable for any space.
Scroll to Top