InkbirdWireless Thermometer Humidity and Temperature Monitor, IBS-TH2 Freezer Thermometer Bluetooth Temperature Sensor Smart, with APP for Android and iOS (Temperature and Humidity Sensor)

This is a great product for dialing in the temperature and humidity of a particular area or room. We really think this is the way to go for expanding the level of data we can pull from our garden, using these gauges to extract meaningful details.This gauge took a bit to get running only because the instructions do not explicitly say that WiFi is required to pair the device. The instructions provided elude that only with Bluetooth enabled the device will pair with your phone using the Engbird app. This will fail to pair until your phone has connection to a wife source. At this point, it should connect no problem.Another user interface note to mention is that the initial setup of the device makes it seem as though your options are very limited concerning how you can have the gauge monitor certain humidity and temperature ranges. There are 6-7 profiles to choose from but they might not capture the range you are looking for. This is okay, just select one profile that is close to the range you are looking for and once selected a new window will pop up allowing to dial in the ranges to your desire.

So far working great. Have it in my chest freezer. I use the app to check temperature. I receive notification on paired Bluetooth cell phone if temperature falls outside the temp range I specified. I will NOT receive notification if not home as it uses Bluetooth, not Wi-Fi. I can view temps for day, week or month with graph. Can set it to measure every 10 sec, 30 sec, 1 min, 10 minutes, 30 minutes or less often. I have it set for every 30 minutes for now. Display on app shows temp on freezer staying within one degree of zero. Now I can know if freezer not cold so don't lose all my food. Be sure to use lithium batteries to handle cold in freezer.UPDATE: Stopped pairing with Bluetooth after 5 days so now useless. Cannot determine temp.

I got this sensor to help create an "information center" out of an old iPad, for use in my RV. This just involves setting up the home screen of the pad with widgets from various apps like weather, calendar, etc. Using iOS widgets lets me make a flexible, easy-to-read display that's user friendly. I wanted a Bluetooth sensor because I don't have a wifi router in my RV.I downloaded the "Inkbird" app before purchasing and confirmed that the app offers widgets. Unfortunately I didn't realize that app is only for their WiFi products. For Bluetooth devices, you need the "Engbird" app instead. This IS mentioned in the product description....way down near the bottom. I missed it.The Engbird app for this sensor does not offer widgets.Aside from that, the sensor seems to perform correctly. The documentation and app use pretty sloppy English -- moreso than most obviously-imported products that you find on AMZ -- but it's all perfectly usable. The case opens with a screwdriver to replace the two AAA batteries, which seems like a lot of power compared to other devices that run on a coin cell. These sensors will probably go for a *very* long time between battery changes. I couldnt' tell you for sure though, since I'm returning : )

We have a 3700 sq ft two-story house built in 1890. I bought this last summer (July 2021) concerned with the high humidity in our semi-finished basement and if the dehumidifier was doing its job. This is important to me because the basement isn't easily accessed from inside our home so I liked the idea of watching it on my phone app. I watch it now in winter because one year a basement window blew out/broke causing it to freeze and burst the water pipes in our basement during a brutally cold and windy stretch of Illinois winter. I can easily check the current and past temp and humidity history even from two stories up laying in bed at night. I bought this in July, as I mentioned, and now in January after logging the temperature and humidity EVERY MINUTE since (which I can graph and analyze if I wanted to), I'm still at 72% battery life! What's not to love?UPDATE: I just replaced battery after over a year of one minute interval readings. Great product.

This little product has been a game changer! It doesn't provide the alerts unless you're connected to it and on the app, so don't rely on this to save your microclimate from extreme temperature/humidity, but I will say, it has been so insightful on being able to check your microclimate from another room in the house. The range isn't super far, but decent, and overall, really accurate. I put mine in the fridge for calibration and it read the exact temperature from the start. Highly recommend this over some cheaper hygrometers solely on the fact that you can monitor an environment over periods of time instead of only knowing the current temp/rh. There may not be a screen, but honestly it's not needed. Last thing, the battery life is good, but Im not sure it'll last the whole 6 months. I'm still super satisfied with this product and compared to the price of a SensorPush, this thing is a WHOLE lot more pocket friendly.