BN-LINK Bluetooth Hygrometer Thermometer,Indoor Temperature Humidity Monitors, Digital Humidity Meter with App Control for Home, Baby Room, Terrarium, Incubator, Greenhouse

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To check the temperature in my cargo trailer

Works pretty good and easy to set up but really basic and leaves large gaps in reporting data. The Exporting to Excel works as long as you do one day at a time. I guess it is doing a very basic job for a cheap price but you may want to view for other options

This bluetooth device gives a nice read out of temperature and humidity, however, it's so small it fits in the palm of my hand. It is not back-lit so you have to be very close to view. Forget about connecting to bluetooth. It's one of the worst connecting devices I've ever owned. You practically have to be ontop of it to connect. In order to remotely view, I had to set up a bluetooth camera to see it. Every other device in the same area connects except this thermometer. If you plan to purchase this device, only expect view it at close distances.

Works awesome and I like the Bluetooth feature and how it saves you data

Readable, and works.

Don’t buy. These don’t keep history. You have to be standing on top of them to connect ever. I can’t even be in the next room and get a live temp. Worthless. This is essentially a more expensive version of a cheap temp gauge you have to go to its location to read the temp. Really regret my purchase as I read so many descriptions on these to try and find one I could capture history of the day as well as connect to when not in the immediate presence of. No bueno.

Great for keeping track of the temps in my portable greenhouses. Let's me know if it's getting too hot for some of my plants and if I need to keep the doors opened or closed. I have two and they both proviide the same temps so I know they are working properly. Great buy.