Tapo Smart Temperature and Humidity Monitor, 2.7" E-Ink Display, Swiss-Made Sensor, Real-Time Notification, Visual Graphics, Hub Required, White (T315)

Super easy to setup and use, easy to see, and they see to be accurate. For the cost I would definitely recommend as a stand alone unit, but even better you can link them into the Tapo base unit to use them for automation. These are setup to allow me to turn on AC units, dehumidifier and humidifiers. They really are handy as a whole system. They are compact, but also easy to see from across the room with the display. Super cheap and great value in my opinion

I didn’t buy this because I suddenly wanted to track my home’s humidity trends. I bought it because my insurance company offered me a discount—if I could show I had a fire/environment monitor. This Tapo fits that requirement, and it’s way cheaper than watching my premiums climb. Setup was easy: pop in the batteries, pair it to Wi-Fi with the app, and you’re in business. It tracks temperature and humidity in real time, logs the history, and even sends alerts if conditions change beyond your set limits. The readings matched closely with a thermometer/hygrometer I already trust, so I’m confident it’s accurate enough for both peace of mind and insurance paperwork. The nice thing about it being battery-powered is that I can place it anywhere without worrying about cords or outlets—and it keeps running even during a power outage. The downside? The app feels like it was designed for people who want to integrate it into a full smart home, so getting straight to the historical logs takes more taps than it should. In the end, it’s a small, portable gadget that paid for itself instantly through the insurance discount. Not a showpiece for your living room, but it quietly does its job while you forget it’s even there—until you need it.

This Tapo temperature and humidity monitor has been accurate, easy to read, and simple to integrate into an existing setup. The E‑Ink display is clear from any angle, and the readings update reliably without the screen glare you get from LCD units. Connecting it to the Tapo app took only a moment, and it synced on the first try with no troubleshooting. The sensor responds quickly to changes in the room, and the app history makes it easy to track trends over time. Overall, it’s a dependable monitor with a clean display and seamless app integration.

First of all, this is much smaller than it appeared to be in the photos. Once you set everything up, you can easily set "comfort zones" for both temperature and humidity in the app allowing you to get notifications if it reads values outside of those zones. You can also set it to balanced mode, or high sensitivity mode. In high sensitivity mode it updates every .3 degrees Celsius or 3% humidity. In balanced mode it updates every .5 degrees Celsius or 6% humidity, which consumes less power. As far as I can tell, based on the available data in the app it still updates every 15 minutes regardless of this setting. The only question is how far it will be able to go outside of the comfort zone before it ignores that 15 minute interval and pushes the data, giving you an alert. For what I wanted this to do, it's perfect. When paired with a Tapo smart plug and a "dumb" humidifier, it can automatically start that humidifier if your room drops below a specific value, and stop that humidifier when it exceeds a different value. This is exactly what I wanted to help keep my expensive guitars humidified while still using my preferred older evaporative humidifier. *update 8/28/2025* After using this in my "guitar room" to monitor my humidity, I was impressed with both the accuracy, and the alerts. The graphs of humidify and temperature over time, ease of use, and quality of alerts made me buy a 2nd one for my tuck-under garage. I live in a place that gets very cold in the winter, and I have water pipes that run through my garage. I've had them freeze and crack, which as you can imagine isn't fun. Not only can I see the current temperature in my garage whenever I walk past this, I can also easily set a temperature alert that I'm confident I will get, that will let me know if it seems to be getting too cold in my garage so I can address the problem before my pipes freeze. The magnetic back on this device meant I could just stick it to one of my metal shelves, so I didn't have to drill a hole, rely on tape, or actually do anything at all to mount it. As far as I'm concerned, this device has already paid for itself in saved worry just for that, but it's also kept my guitars from drying out an cracking.

The TP-Link Tapo Smart Temperature and Humidity monitor is easy to setup with the Tapo app (free download) and hub (sold separately). The unit has a very large e-Ink display that is clear to see at various angles. Note though that it needs ambient light, since there is no internal backlight for night visibility. Besides the Temp/Humidity there is also a small battery indicator useful for preventing unexpected outages. In the Tapo app the sensor shows not only the current values but also a plot of Temp/Humidity vs. time for checking how the room climate is changing with time. Additionally, a comfort zone (min/max T and R.H. values) can be defined in the app, so that the app sends push notifications when the room climate is out of the comfort zone. As part of the Tapo smart system, the Temp/Humidity monitor can be used to set up smart actions with other Tapo devices, such as switching a Tapo switch on/off to control a fan or small space heater based on room temperature variations. Overall the TP-Link Tapo Smart Temp/Humidity monitor is an excellent addition to smart home automation projects.

Works good. It shows temp and humidity on screen so you don't need to look it up on the phone. Battery life is so so. Connects easily and works fine, but I need to figure out what's going on with battery life.

it's good but be careful that the and this device are UK or both US or they will not detect each other

Works great

If you have a HUB for EU/UK, the US sensor will not work, make sure you buy the HUB and sensor devices for the same region

Good product but it doesn't pair with EU other Tapo devices, so I had to return it. Since all Tapo are imported, make sure to buy entire system from one market, like Amazon Germany, mixing won't work together. Amazon accepted my return and refunded me, so it was just misunderstanding, still product is great.

Does the job