Review on 🌡️ 9H Wireless Thermometer Hygrometer: Smart Bluetooth Sensor with Alarm & Data Storage for iPhone/Android by Brian Stepp

Too good to be true. The app is so easy to start. The app is pretty intuitive. I love that both temperature and humidity can be calibrated, both required some level of calibration on the 2 units I purchased. The main thing was to set the humidity level. Place them in an airtight freezer bag with 69% Boveda for 24 hours, calibrate and let sit again for 24 hours. The calibration was fine tuned again and left for another 24 hours then it became accurate and it stayed the same last week when they were used. Only time will tell if they will retain their quality and survive the sizing. So far I'm totally thrilled. The ONLY downside I can find is that the actual display on the devices doesn't change, even with calibration. Only the information in the application changes. But hey. That's why they have Bluetooth! I can sit in my chair and check my Tupperdores! It would be nice to try a few more. since the app can record up to 100 sessions!