Just got my hands on two of these. Not sure if been posted about but seem pretty decent.
Paid about £30 each and they track room temps and humidity. As you can see in the picture you can change from hours to days and monthly.
You need to download the app and can connect multiple units, ive got one in with some clones and one for the seedlings.
Quite small and can be easily hung around the tent.
You can also set high and low parameters so if it goes below or above you will get a notification.
Only works through bluetooth so will only get them in the house.
Will see how long they last but worth a go, especially if your not using a controller.
(i am but i dont trust it)
Thanks for reading
![stoned :Stoned:](./images/smilies/stoned-smiley.gif)