The 9 Best Small Temperature Sensors (2023 reviews)

The latest thermopro small temperature sensor is an absolute beast in terms of its features, and rightfully takes the top spot with ease. This low-cost device is extremely accurate and very sensitive (a good thing) to any slight change in temperature. It is a cool little humidity monitor and thermometer. It has a bold display, feels like a solid piece of equipment and is of excellent quality. It can also serve as a refrigerator thermometer, freezer thermometer, reptile thermometer, soil thermometer, humidor hygrometer, cigar hygrometer, and more.

This inside thermometer features a high accuracy of 23rh and is easy to read. It is easy to move around and large digital numbers are easy to read. It is also very responsive.

Why We Like This:

Great unit, takes a while to initially acclimate then adjusts quickly
Helps keep track of humidity in the room
Works great and super light weight
Easy to use and actually came with batteries

Best With Bluetooth: Sensorpush Small Temperature Sensor

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The sensorpush small temperature sensor gives the top-tier sensor a run for their money by offering flagship specs at a much more affordable price. It uses an updated digital humidity/temperature sensor, with a typical accuracy of 2%rh, 0.2°c / 0.36°f. It is great for tracking attic temp. The multiple app screens charts and graphs are useful along with being easy to read. They have configurable alarm setpoints for both low and high temp and RH with email alerts.

The app is well designed, setup is uncomplicated and works for multiple sensors and gateways without a hitch. They're small so they're easy to store inside the freezer with no issues. The wireless feature and small/light-weight of this measurement device makes it easy to use anywhere. It features easy to read and use all fully customizable.

Why We Like This:

Definitely a great investment for a medicinal garden
Small and easy to hide outside or in
Extremely accurate and simple to add to the sensor network

Best With transmitter: ORIA Small Temperature Sensor

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Oria is known for creating pragmatic and minimalist sensor for people on the go, and its line of oria small temperature sensor definitely falls in line with that reputation. This thermometer setup does all 3 perfectly. It has a great visual display and is very accurate when tested with other thermometers. It is needed to keep up with the temps inside and outside the fridge. You can put the sensors anywhere, the display is easy to read showing the temp + humidity of the display environment, and the temp + humidity of the sensors' environment. It is good for crawl space monitoring. The backlight is helpful at night and stays on long enough to read everything. It is easily set up and legible from distance.

This unit gives you readings on the low, high, and current. Transmits adequately even through heavy steel walls of the safe to the receiver 50 feet away and in another part of the house.

Why We Like This:

Range is decent, working through a floor and a few walls
Perfect monitor for everywhere in house, even in the home rack server
Works very well and pretty accurate when compared to other thermostat inside and out

Best For RV: Sensorpush First Sensor

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Best part: sensorpush first sensor costs comparatively low and it is available to ship in 24 hours. This is a neat little device and would work great at closer distances, like a freezer in the garage or other places much closer to your phone. It is automatically pushed to mobile applications when they are in range. It can be calibrated and alerts are easy to set up. The sensor will send the data thru the gateway to your mobile phone. It is best with the router addition. It is exposed to occasional spray and regular high humidity with no problems. There is a battery voltage readout built-in.

Why We Like This:

Background updates are reliable and quick
Software app for trending and ultimately for troubleshooting
Easy to monitor the temperature and humidity with cell phone app

Best For pet: Aqara Small Temperature Sensor

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If you are searching for a satisfactory sensor for your daily usage, you cannot go wrong with the aqara small temperature sensor. These compact little sensors work well with both platforms mainly because of the integration of zigbee2mqtt within both the OpenHab and HA environments. This is to prevent the new sensor from being routed through Zigbee devices as repeaters. It can be paired with a smartthings hub if you're willing to deal with a bit of hoop-jumping/hassle to set it up using custom a custom handler created by a community member and freely available on github.

The Aqara battery is still reading 97%-100% which is incredible. This is great with home assistant, deconz, and conbee ii. It can be easily installed anywhere.

Why We Like This:

Can be made to work with smartthings gen 3rd hub
Great sensor for your smart home
Great sensor and works with samsung smarthings hub
Paired nicely with home assistant using the nortek security stick

Best For commercial grade: Mocreo Small Temperature Sensor

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The mocreo small temperature sensor's material feels more premium than its price would suggest. The ST3 remote thermometer hygrometer can be used anywhere to monitor ambient temperature and humidity and avoid the risk of mold mildew. It is ideal for families or businesses that share responsibility for homes, incubator, greenhouse, laboratory, or anywhere. It comes with just one mocreo hub, multiple occasions can be monitored with just adding sensors. This takes you to the "nodes information" page. It also allows you to use any zigbee repeater to extend your wireless range.

This product gives peace of mind when gone for long periods of time. It can also send alert (push notification, email) to your phone to notify you that the temperature or humidity value has exceeded the preset value. The mocreo sensor app only supports entering one email address to receive alerts.

Why We Like This:

You can access the mobile app interface from any web browser
Two st3 climate sensors, that can remotely monitor the temp & humidity
Nice big graphs with lots of resolution

Best For Two months: Govee Thermometer Hygrometer

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The govee thermometer hygrometer's high-end materials makes sure that it ages well with use. The Govee app and base station make set-up easy. They are much cheaper than the H5051 units with WiFi support. They each tell you the percentage humidity where ever you have them placed, so it sounds like this unit is exactly what you're looking for. The app is easy to use and stores historical data so you can see the hourly temperature/humidity variations.

These work perfectly and are easy to setup. They are very accurate and it is extremely useful being able to keep track of all of the information in their app. It is advertised as weather-resistant. It is great way to keep track of house temperature.

Why We Like This:

Easy set up and connection is over 200 ft from internet base
Wireless wifi temperature sensor works perfectly
Good brand reputation

Best For crawl space: Yolink Small Temperature Sensor

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If you are currently in the market looking for a suitable sensor for your daily usage, yolink small temperature sensor is the natural choice. This sensor does require the Yolink hub. It allows multiple hubs to be used so a device is not tied to a particular hub. It's about 500' away and this little sensor is rock solid. It can set alarms in the application. It is easy to link to alexa and can be easily linked to certain other yolink devices. It will not operate without a hub, not included. The enclosure just requires a single cooling/exhaust fan. It's also a great tool for keeping tabs on the temperature and humidity.

Why We Like This:

Does a great job of monitoring the fridge temp
Works great and is super accurate
Integrates to the hub in seconds

Best For incubator: Govee Small Temperature Sensor

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Not everyone likes to purchase sensor for their regular usage, but the govee small temperature sensor would be an anomoly. These hygrometers are packed with powerful features. It comes with their mini size, accurate sensors, wifi connectivity, and easy installation, these hygrometers are sure to keep you entertained and informed about your home's humidity levels in a fun and modern way. They're so small and cute, they'll easily blend into any room decor. With their strong adhesive backing, you can easily stick them to any surface, whether it's on the wall, furniture, or even your plant pots.

The installation of these hygrometers is a breeze. You can place them in your living room, bedroom, kitchen, or even in your plant nursery, and they'll discreetly keep track of the humidity levels without taking up much space. It's a source of amusement and convenience for your home environment.

Why We Like This: