I love technology, we now enjoy electronic products that do so much for so little cost and size and this is a prime example. Anything we put in a safe represents our most precious possessions, so shouldn't you take the best care of them? Knowing your humidity level is nice and this gives current percentage, high/low values and 24 hour frequency with temperatures included. What I especially like is the handsome red casing and mounting system that matches their desiccant dehumidifier. You can mount both in your safe for a final elegant touch to stay on top of damaging humidity levels. To save precious shelf space, it is best to mount this on the interior safe wall where you can easily see it. Most interior walls can be drilled into to anchor small screws, so I recommend that to set up your bracket.

Works as described! Shows the temperature & humidity levels. Pretty simple to follow.

Shows exactly what I care about, temperature and humidity. Easy to install and simple to use

So far so good, easy to see and acurate