UNNI Wireless thermometer, 4.5 inch display
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Product description
If you want reliable indoor and outdoor readings without running cables, this wireless thermometer from U UNNI is built for everyday monitoring. With a 4.5 inch display and a 100 m sensor range, you can keep an eye on temperature and humidity across the places you care about, from a garden shed to a living room. It also gives trending information, so you are not just seeing a snapshot, you are seeing direction too. 🌡️💧
The system is designed to be practical in real homes, with both battery and USB power options and an adjustable backlight for comfortable viewing. According to the manufacturer, the sensor is precalibrated for accuracy, with temperature accuracy of plus or minus 1 C and humidity accuracy of plus or minus 5%. That matters when you are trying to avoid surprises, whether that is cooler air outside or changing humidity levels indoors.
The essentials
This indoor outdoor thermometer is a wireless weather monitor that tracks temperature and humidity for multiple locations. It displays readings for indoor and outdoor conditions, along with a trend indicator so changes are easier to understand at a glance. You can switch temperature units between C and F, and there is a comfort indicator to help you quickly judge how conditions feel.
The device also includes alerts for outdoor temperature and humidity, which is useful if you keep plants outside, manage a garage environment, or just want early warning when conditions shift. There are daily MAX and MIN records as well, so you can review how the environment has moved over time. Battery low indication is included, helping you avoid losing monitoring unexpectedly.
A key convenience is the adjustable backlight. When powered via USB, the backlight can stay on, and you can choose between three brightness levels, high or low. The display is described as compact and easy to read, using bold, high contrast characters designed for quick checking, day or night.
Key features
What you get is a monitor station paired with three outdoor sensors, giving you coverage for more than one exterior area. According to the manufacturer, the wireless technology supports transmission of up to 100 m in range, updating temperature and humidity every 30 seconds. That update rate helps keep your readings current without needing constant manual checks.
The thermometer covers a practical temperature range indoors and outdoors. According to the manufacturer, the indoor temperature range is 9.9 C to 50 C, and the outdoor temperature range is minus 40 C to 70 C. Humidity coverage is listed as 20% to 95% for indoor and outdoor measurements, which suits typical household and garden monitoring.
The system also includes automatic resets for maximum and minimum records every 24 hours, so daily highs and lows stay relevant. You can use it on a table or mount it on a wall, which gives flexibility depending on where you want the display. If you are managing multiple rooms or an outdoor area, the comfort indicator and trend display make it easier to spot when conditions are drifting rather than staying steady.
It also supports two power approaches, battery and USB. When you connect USB power, the backlight can remain on and the brightness can be adjusted in three steps, which is especially handy if the screen is in a hallway or somewhere you check frequently.
Tech specs
- Temperature range indoor: 9.9 C ~ 50 C
- Temperature range outdoor: -40 C to 70 C
- Humidity range indoor and outdoor: 20%~95%
- Temperature accuracy: plus or minus 1 C
- Humidity accuracy: plus or minus 5%
- Wireless sensor range: up to 100 m
- Update interval: every 30 seconds
Who it’s for
This wireless indoor outdoor thermometer is a good fit if you want one screen showing both indoor comfort and exterior conditions, including changes over time. It makes sense if you regularly check how temperature and humidity behave in different outdoor spots, and you want MAX and MIN values tracked daily. It can be a solid pick if you prefer simple installation options, such as placing the unit on a surface or mounting it on a wall. ✅
It might not be a great match if you only need a single reading point, because this kit includes three outdoor sensors. You may want to skip it if you are looking for a display that is powered in a specific way only, as it supports battery and USB power. Keep in mind that the battery is not included, as stated in the package details.