TP-Link Tapo Smart Temperature and Humidity Sensor T310, White, Requires Tapo Hub, High-Accuracy Swiss-Made Sensor, Real-Time Notifications, Free Data Storage, Long-Lasting Performance

This unobtrusive little thermometer/hydrometer is perfect for keeping an eye on my Montana mountain home when I am away for the winter-- that's my plan, anyway. When I was renting it out, the house ran out of propane when it was between tenants, resulting in pipes freezing and $50k worth of water damage. I'm not going to let that happen again. I've just ordered a Tapo smart door lock so I can let someone in remotely should the need arise. The Tapo IoT ecosystem is excellent-- they don't force you to buy a subscription to basic functionality out of your gear like ESeeCloud or whatever they are calling themselves now. The Tapo app displays the temperature and humidity in a nice 24 hr graph, which converts to a high/low bar graph when viewing monthly or annual data. I wish you could view historical data in the 24 hr graph format but that doesn't appear possible at the moment. I wondered why it was necessary to use The Hub with this device but it just occurred to me: for non-camera devices, the data storage requirements are small. The hub allows to you have multiple thermometers, water (leak) detectors, etc., that share the same memory device-- no need to buy SD cards for every device, just buy one (big) card for the Hub and you are good to go.

I've tested a number of temperature / humidity sensors, they all had failed miserably. The TP-link Tapo sensor is awesome, extremely easy to set up (you do need a Tapo hub). I connected it with Alexa and set up a routine to control ventilation fans to the built in refrigerator. It works seamlessly and controls temperature great. I read some negative reviews regarding accuracy, so I tested it against the temperature control inside the refrig, it varied by only .1 degree F. Over the past 7 years I've converted the house to total automation (garage door control via vehicle and phone, smart irrigation of lawn and plants, motion sensing light control, smart HVAC systems, smart outlets, smart light bulbs, smart switches), trying a multitude of brands and throwing away a number of devices that just didn't have the quality or features required. I have refined my system down to Tp-Link / Tapo / Kasa, Tailwind and B-hyve for my home automation.

Tapo Hub required. Not a big deal, though, because the hub is cheap. These temp and humidity monitors are not cheap - but the high quality (including the excellent screen) and app-connectivity make it worth it. I find these more consistent and accurate than most cheaper temp and humidity sensors, too. We have four in total. The ability to look at trends in temp and humidity throughout a 24 hour cycle in several places in your home helps a lot with heating, A/C and humidification strategy. No regrets on this purchase, especially as it's a natural extension of the excellent Tapo smart home system we already enjoy.

Love how it's now very affordable to buy into an ecosystem that enables automation triggered by temperature and humidity. I have 2 TP-Link Kasa plugs attached to a heater and a humidifier respectively and one of these + a hub was all I needed to get smart switches to actually behave smartly and keep my child's room within a temperature and humidity range. The OLED screen has wonderful contrast, compared to my Govee hygrometers that I owned prior and now use as a comparison to see how accurate they are. They match each other within 0.2-0.3 F / 1 % humidity. Time will tell how long they last but I fully expect them to last as long as they say they will.

Love this piece for use in my crawlspace. Love knowing the temperature during both hot and cold days. Great to get a feel for ground temperature in the crawlspace during winter so one can tell if snow will stick to the road and turn to ice. Love it!

I like the Tapo products. This T315 sensor has humidity too high. It didnt match what my dehumidifier was saying. I just received a second Tapo sensor and decided to put it next to the first one in a test. The new one reports the correct humidity, matching the dehumidifier. The first Tapo sensor tends to be 6 or 7 percent too high in the humidity readings. I don’t think i’ll bother to return it, because the price is very low for it. Just be aware that some of them are not accurate.

We have a very large crawlspace with a big dehumidifier near the center. I installed a powerful fan that will circulate the air throughout the entire space. This sensor (located at a distant corner of the space), together with a smart plug powering the fan, turns on the fan for an hour whenever the humidity raises above the 49% setting.I’m thrilled with the result.

First off, these require a hub. Second, they use a coin battery that continually gets weaker along with it's signal to the hub. I purchased a hub and two sensors to maintain heat inside a paint cabinet that is in my detached garage (about 30 feet from the hub) and a small out building (about 35 feet away). They both worked great for a few days and then started to disconnect for periods of a few hours to days. I moved the hub inside the garage (10 feet from sensor 1 and 24 feet from sensor 2) and sensor 1 worked for a few more days and sensor 2 quit the same day. If the sensors worked on AC power and WIFI, they would probably still be working for me. The hub uses WIFI and still connects to my network. As it is, they are totally unreliable and of no use to me.