10 Best Smart Thermometer For Greenhouse 2025 in the United States

The Govee Indoor Hygrometer Thermometer is a solid choice for those looking to monitor temperature and humidity levels, especially in a greenhouse setting. One of its standout features is its impressive accuracy, with temperature readings precise to ±0.54°F and humidity levels to ±3%RH. This level of accuracy is crucial for maintaining the ideal conditions for plant growth. Additionally, with a fast refresh rate of just 2 seconds, you’ll always have up-to-date information at your fingertips.

Connectivity is another strength, as the thermometer uses Bluetooth with a range of up to 196 feet, allowing you to receive immediate alerts through the Govee Home app if your preset temperature or humidity thresholds are breached. This feature ensures that you can take prompt action to protect your plants.

The large 3-inch LCD display is user-friendly, making it easy to read the current conditions at a glance. Plus, the ability to log data over 2 years and view it in a clear graph format can be beneficial for tracking trends in your greenhouse environment. However, the device operates on batteries, which means you'll need to keep an eye on battery life and potentially replace them over time. Additionally, while it offers 20 days of online data storage, some users may prefer unlimited storage for ongoing monitoring.

The SensorPush HT1 is a smart temperature and humidity sensor well-suited for greenhouse monitoring, among other uses like fridges and RVs. It offers a simple, fast setup without complicated installation, making it user-friendly for anyone. The device uses Bluetooth connectivity with a solid range of up to 100 meters in open spaces, which is convenient for close-range monitoring. For remote access, you can add a WiFi Gateway separately, allowing you to check conditions from anywhere.

The sensor provides accurate and reliable readings of temperature and humidity, along with useful data like dew point and VPD, important for plant health in greenhouses. It stores up to 20 days of data onboard and offers unlimited storage in the app, with easy options to view and export your records for tracking trends over time. Alerts and notifications can be set up via the app to warn you if conditions go outside your desired range, helping to protect sensitive plants. Powered by batteries that last 1-2 years, it requires minimal maintenance.

A downside is that remote monitoring requires purchasing an extra WiFi Gateway, which adds to the cost. Also, it doesn’t include additional sensors beyond temperature and humidity, so if you need other measurements, you’ll need separate devices. The SensorPush HT1 is a dependable, easy-to-use smart sensor that fits well for greenhouse gardeners wanting precise environmental data without technical hassle.

The Govee WiFi Temperature Sensor H5179 is a smart thermometer tailored for environments like greenhouses. It offers precise temperature and humidity readings, with an accuracy of ±0.54℉ for temperature and ±3%RH for humidity, thanks to its Swiss-made sensor. This accuracy is crucial for maintaining optimal conditions in sensitive environments. The device refreshes data every 2 seconds, ensuring real-time updates which can be monitored remotely via the Govee Home app. However, it does not support 5G WiFi, relying on stable WiFi and Bluetooth connections for functionality.

The sensor includes an alert function to notify users via the app if conditions fall outside preset ranges, allowing for quick responses to environmental changes. Setting these alerts is only possible through Bluetooth, which might be a minor inconvenience for some users. The sensor supports data storage for up to 20 days online and up to 2 years of historical data export, useful for tracking long-term trends. It comes with three AA batteries, providing flexibility in placement without the need for a constant power source. The inclusion of a lanyard loop further simplifies positioning within the greenhouse.

While it does not feature additional sensors beyond temperature and humidity, it excels in its primary functions with high accuracy and reliable performance. This makes it a practical choice for users needing detailed environmental monitoring, although those requiring support for more advanced connectivity or additional sensor types may need to look elsewhere.