Product review (3 stars): Works, but an extension cable would be awesome!
This is a handy device for checking the temperature & humidity at the time of use. Since this requires a Smart device, more then likely it will not be left sitting around for hours at a time.
The unit I received appears to be accurate with the other outdoor thermometer I have.
It is good to be aware that if you have a case on the device that is to be used, be prepared to take the case off every time you wish to use this.
I feel this is a poorly thought, and an extension cable would be a great addition to this product.

The temp reading responds fast when brought outside vs inside climate.
I have snow on the ground so its a dramatic temperature difference.

This was used with an iPhone 6+, with an otter box case. If you have an otter box then you know the
struggle of removing the case and putting it back on just to use headphone accessories.