Great for my wine chiller that has an unreliable thermometer.
Very accurate and well made piece of equipment.
It was on sale and great value. Have five sensors at different places, to be honest, on just need the temperature and humidity displace, as the app gives the history.
Works great, highly recommend
I haven't used the bluetooth functionality yet, but this unit is pretty accurate, and updates quickly (1 second intervals, it seems) compared to other units. It is very sensitive, so holding it will make it read closer to your body temp and the humid fumes you're giving off. This unit is best left in a 'set it and forget it' scenario when you can check in later, and clear the values after not touching it for awhile.It was priced right, the batteries seem to last, and it seems pretty accurate (dead on accurate next to my thermostat.) It did differ greatly from my Nest's humidity sensor, but this one I confirmed to be accurate compared to another hydrometer.