Best Temperature Sensor For Greenhouse: 10 Options Compared

#1 · Best Overall

1. SwitchBot IP65 Hygrometer Thermometer

• Dimensions: 0.79"W x 2.36"H
• Dimensions W x H: 0.79"W x 2.36"H

Best for: Weather-resistant multi-zone sensors.

Why it ranks #1: Its IP65 dustproof and waterproof rating, three included sensors, and stated 394-foot Bluetooth range suit damp greenhouses and multi-point monitoring.

Three IP65-rated sensors make the SwitchBot W3400010 a compelling greenhouse option where exposure to dust or rain matters. Their Bluetooth range reaches 394 feet without obstructions, and the sensors can report temperature, humidity, dew point, and VPD for a broader view of growing conditions.

The IP65 dustproof and waterproof rating supports use outdoors, including greenhouses, while the three-pack lets you monitor multiple locations. Bluetooth readings are accessible within a stated 394-foot range when unobstructed, and free data storage supports retaining measurements. Beyond temperature and humidity, dew point, VPD, and absolute humidity provide additional environmental measures. The compact sensors are portable, but app access by Bluetooth remains tied to the listed range and unobstructed connection rather than being described as Wi-Fi monitoring.

Skip it if you need Wi-Fi monitoring away from the greenhouse; the GoveeLife H5179 supports remote access through 2.4GHz Wi-Fi.

Choose SwitchBot if you want several weather-resistant sensors and readings such as VPD or dew point. Its Bluetooth access range and the need for an unobstructed connection matter when planning sensor locations.

Listed on Amazon as: SwitchBot IP65 Indoor Outdoor Hygrometer Thermometer Wireless 3Packs, 394ft Bluetooth Range, Refrigerator Thermometer, Dewpoint/VPD/Absolute Humidity Sensor, 2-Year Battery Life, Free Data Storage

#2 · Best Wi-Fi Alerts

2. INKBIRD WiFi Sensor

Best for: Wi-Fi threshold-alert monitoring.

Why it ranks #2: The listing explicitly identifies greenhouse monitoring, Wi-Fi alarms and notifications, and temperature accuracy of ±0.5°F.

Temperature and humidity alerts give the INKBIRD IBS-TH3 a notification-focused role in greenhouse monitoring, helping flag readings that cross limits. Its listed temperature range is -4°F to 140°F, and accuracy is specified at ±0.5°F and ±3%RH for paired environmental measurements.

The two-in-one sensor measures temperature from -4°F to 140°F and humidity from 0% to 99%RH, covering both measures in one unit. Listed accuracy of ±0.5°F and ±3%RH helps contextualize changes, while alarms and notifications can alert you when detected conditions meet the set alert criteria. Wi-Fi connectivity supports a connected monitoring workflow. Those range and accuracy figures provide useful selection points, but placement should still reflect the greenhouse conditions you intend to monitor.

Skip it if you need sensors rated for outdoor rain exposure; the SwitchBot W3400010 has an IP65 dustproof and waterproof rating.

The IBS-TH3 suits growers who want Wi-Fi-connected measurements and alerts, with stated accuracy for both variables. Check that its -4°F to 140°F temperature range covers your greenhouse’s expected conditions.

Listed on Amazon as: INKBIRD WiFi Thermometer Temperature and Humidity Sensor for Home

#3 · Best Greenhouse Display

3. RUIKORING Wireless Hygrometer

• Dimensions: 2.75"W x 3.62"H
• Dimensions W x H: 2.75"W x 3.62"H

Best for: Local indoor-outdoor readings.

Why it ranks #3: Greenhouses are specifically listed as a suitable space, and its separate wireless sensor reaches up to 330 feet with 30-second updates.

The RUIKORING pairs indoor and outdoor temperature and humidity readings on one display, making it easy to compare a greenhouse sensor with conditions at the host. Its wireless sensor is listed for greenhouse use and has a 330-foot range, with readings updated every 30 seconds.

A single display showing indoor and outdoor temperature and humidity helps growers compare conditions without switching between separate readouts. The wireless transmitter’s 330-foot range supports placement away from the display, while 30-second updates keep the readings refreshed throughout routine checks. The supplied components include the host, one transmitter, AA batteries, and AAA batteries, giving the setup its listed power components. First-time setup guidance says to keep sensor and display together for 5–10 minutes after installing batteries.

Skip it if you need app-based readings away from the display; the GoveeLife H5179 supports remote Wi-Fi monitoring.

This RUIKORING suits growers who prefer a local display for comparing indoor and greenhouse conditions. Its 30-second update interval and single included transmitter define the monitoring setup to plan around.

Listed on Amazon as: Indoor Outdoor Thermometer Wireless Hygrometer, 330 ft Sensor

#4 · Best Remote Monitoring

4. GoveeLife H5179

Best for: Remote Wi-Fi greenhouse checks.

Why it ranks #4: Its 2.4 GHz Wi-Fi and Bluetooth connections support remote app monitoring and notifications, with stated temperature accuracy of 0.54°F.

Remote Wi-Fi monitoring lets the GoveeLife H5179 show greenhouse temperature and humidity through the GoveeHome app, including when you are away. It supports stable 2.4GHz Wi-Fi and Bluetooth connections, and its Swiss-made sensor is specified at 0.54°F and ±3%RH accuracy.

The app provides real-time readings and variations, while Wi-Fi access allows checks beyond the immediate Bluetooth connection. Its 2.4GHz Wi-Fi requirement is an important setup consideration because 5GHz Wi-Fi is not supported. The sensor’s specified accuracy of 0.54°F and ±3%RH gives a reference for interpreting changes, and its listed temperature range is -4°F to 140°F. The app also supports widgets, allowing readings to be surfaced through that feature.

Skip it if you rely on 5GHz Wi-Fi; the TempPro TempAir TP350 uses Bluetooth and does not require a Wi-Fi band.

The H5179 fits growers who want to check greenhouse conditions remotely through Wi-Fi and the app. Its 2.4GHz-only Wi-Fi support is the key network compatibility boundary to verify for your setup.

Listed on Amazon as: GoveeLife WiFi Thermometer Hygrometer H5179 with App Notification Alert

#5 · Longest Open-Air Range

5. YoLink Temperature Humidity Kit

Best for: Long-range two-sensor kit.

Why it ranks #5: Its two sensors and included hub support greenhouse monitoring, with LoRa range up to 2,034 feet in open air; the sensors are not for outdoor use.

YoLink’s LoRa sensors reach up to 2,034 feet in open air, giving greenhouse users a long-range connection to the included hub. The kit provides two temperature and humidity sensors, and its stated battery life of up to two years supports extended monitoring between battery changes.

The included hub connects through Ethernet or 2.4GHz Wi-Fi, while LoRa links the two sensors to the hub over a stated open-air range of up to 2,034 feet. That arrangement can suit greenhouse monitoring where conventional short-range connections are a concern, subject to the open-air qualification. Two sensors allow more than one location to be monitored. YoLink specifies these sensors for indoor use and explicitly says they are not for outdoor use, so greenhouse placement must respect that boundary.

Skip it if you need a sensor placed outdoors in the greenhouse; the SwitchBot W3400010 is IP65 rated for indoor and outdoor use.

This YoLink kit fits growers who need two indoor monitoring points and long-range hub connectivity. Its explicit not-for-outdoor-use boundary is decisive when choosing sensor placement inside a greenhouse.

Listed on Amazon as: YoLink Indoor Temperature and Humidity Sensor Kit: 2-Pack + Hub

#6

6. U UNNI Wireless Hygrometer

• Dimensions: 3.94"D x 3.94"W x 3.94"H

Best for: Multi-zone greenhouse display.

Why it ranks #6: Three-sensor display, high and low temperature and humidity alerts, and 328-foot transmission provide useful coverage, though greenhouse suitability is not stated.

A large 4.5-inch display presents readings from three sensors, making the U UNNI a practical choice for growers comparing greenhouse zones at a glance. The wireless system sends data up to 328 feet, and high/low temperature and humidity alerts can flag conditions that cross set limits.

The three-sensor display can help compare conditions across separate monitored areas without relying on a single location’s reading. A stated 328-foot transmission range gives flexibility to position sensors around the property, while high/low alerts provide notice when temperature or humidity reaches a selected threshold. The display can run on batteries or USB power, allowing a choice of power arrangement at its location. Its specified temperature accuracy is ±2°F and humidity accuracy is ±5%.

Skip it if you need app-based monitoring from outside the greenhouse; the GoveeLife H5179 offers remote Wi-Fi access.

Choose the U UNNI if a visible multi-zone display and threshold alerts suit your greenhouse routine. Its ±2°F temperature and ±5% humidity accuracy are important when deciding whether its readings meet your needs.

Listed on Amazon as: Indoor Outdoor Thermometer Wireless Digital Hygrometer with 3 Sensors | 4.5" Clear Display, Easy Setup, Battery or USB Powered, High/Low Temperature Humidity Alerts, High Accuracy Sensor

#7

7. Govee H5074 Bluetooth Hygrometer

• Dimensions: 1.57"W x 1.57"H
• Dimensions W x H: 1.57"W x 1.57"H

Best for: Fast-reading Bluetooth monitoring.

Why it ranks #7: Its app reports readings over Bluetooth up to 262 feet without obstructions, but the listing says it is not a Wi-Fi version.

Readings update every two seconds on the Govee H5074, giving greenhouse users frequent temperature and humidity checks through its app. Its Swiss-made sensor is specified at ±0.54°F and ±3%RH, while Bluetooth connection reaches up to 262 feet when there are no obstructions.

The two-second refresh rate helps keep app readings current as greenhouse conditions shift, while the stated temperature and humidity accuracy gives useful context for interpreting them. Bluetooth reaches up to 262 feet without obstacles, allowing remote checks within that boundary. The sensor also stores 20 days of data onboard and supports export, offering a short-term record to review. This is not the Wi-Fi version, so its remote access depends on the Bluetooth connection rather than Wi-Fi.

Skip it if you need Wi-Fi access from beyond Bluetooth range; the GoveeLife H5179 supports remote monitoring over 2.4GHz Wi-Fi.

The H5074 suits growers who want frequent app updates and a short data history within Bluetooth range. Choose it with the 262-foot unobstructed limit and non-Wi-Fi connection in mind.

Listed on Amazon as: Govee Smart Bluetooth Thermometer Hygrometer H5074, Mini Humidity Sensor

#8

8. TempPro TP350

• Dimensions: 1.1"W x 3.11"H
• Dimensions W x H: 1.1"W x 3.11"H

Best for: Bluetooth greenhouse history tracking.

Why it ranks #8: Bluetooth monitoring reaches up to 260 feet without obstructions and the app stores and exports two years of data, but outdoor protection is not stated.

Two years of stored readings and data export set the TempPro TempAir apart for growers who want to review changing greenhouse conditions, not just check a momentary reading. Its Bluetooth app lets you monitor temperature and humidity remotely, with a stated range of up to 260 feet when unobstructed.

The app’s remote monitoring reaches up to 260 feet without obstructions, so you can check conditions without standing beside the sensor. Two-year data storage and export provide a longer record for spotting environmental changes and planning adjustments. The app does not require user registration, which supports a simpler setup without an account. This is a Bluetooth-based monitoring option; its stated range depends on an unobstructed connection, so greenhouse layout can affect where readings are accessible.

Skip it if you need readings beyond Bluetooth range through Wi-Fi; the GoveeLife H5179 supports remote Wi-Fi monitoring.

Choose this TempPro if you want app access plus a long history to guide greenhouse adjustments. Its Bluetooth connection and unobstructed 260-foot range are the key boundaries to consider when placing it.

Listed on Amazon as: TempPro TempAir Bluetooth Hygrometer Thermometer for Greenhouse Up to 260ft

#9

9. TempPro TempAir ELITE

Best for: Precision-focused Bluetooth sensor.

Why it ranks #9: It provides Bluetooth monitoring, ±0.5°F temperature accuracy, and ±2% RH humidity accuracy, but the supplied details do not establish outdoor suitability.

The TempPro TempAir ELITE specifies ±0.5°F temperature and ±2%RH humidity accuracy, giving greenhouse growers precise figures to consult when checking conditions. Its Bluetooth connection uses auto-connection technology, and the listed 260-foot range provides a way to monitor readings remotely when the path is unobstructed.

Auto-connection technology is intended to make pairing straightforward: install the included batteries, download the app, and connect a smart device. The sensor refreshes every 10 seconds, making readings available without relying on a long wait between updates. Its specified ±0.5°F and ±2%RH precision supports closer tracking of both greenhouse measures. Bluetooth range is up to 260 feet under unobstructed conditions, so the greenhouse’s walls and layout remain relevant to where you can check data.

Skip it if you want Wi-Fi access from anywhere; the GoveeLife H5179 supports remote monitoring through 2.4GHz Wi-Fi.

This TempPro fits growers prioritizing stated measurement precision and a simple Bluetooth pairing workflow. Its 10-second refresh and unobstructed range make placement and connection conditions important considerations.

Listed on Amazon as: TempPro TempAir Bluetooth Thermometer Hygrometer, 260 ft Temperature Sensor

#10

10. X-Sense Wi-Fi Hygrometer

• Dimensions: 1.4"W x 3.94"H
• Dimensions W x H: 1.4"W x 3.94"H

Best for: App-alert greenhouse monitoring.

Why it ranks #10: The title identifies Wi-Fi and app alerts, but supplied specifications give little detail on accuracy, range, sensor count, or greenhouse and outdoor suitability.

Wi-Fi connectivity and app alerts are the X-Sense STH0C’s clearest greenhouse-use features, giving growers a way to receive condition notices through an app. Its title identifies it as a thermometer and hygrometer for home, while the listed product dimensions provide a compact 1.4-by-3.94-inch form.

The Wi-Fi thermometer hygrometer is listed with app alerts, supporting a notification-based workflow rather than requiring every check to happen at the device. Its 1.4-inch width and 3.94-inch height offer a compact physical profile for a monitoring location. The supplied information does not specify measurement accuracy, sensor range, data history, or Wi-Fi band, so those details cannot guide a greenhouse placement decision here. Consider this model when app alerts are the priority and the available specifications meet your requirements.

Skip it if you need a stated accuracy and operating range; the Inkbird IBS-TH3 lists both temperature and humidity specifications.

The X-Sense suits a grower seeking Wi-Fi-connected app alerts in a compact sensor. Because the supplied details do not state accuracy or operating range, weigh that information gap against your greenhouse monitoring needs.

Listed on Amazon as: X-Sense Wi-Fi Thermometer Hygrometer for Home, App Alerts