Refrigerator Thermometer Upgrade

I added a simple bulb-style thermometer to the RT to monitor the inside temperature. It worked well hung over a door shelf edge. But the other day I dropped it on the carpeted floor and the darn bulb cracked.

I had purchased an inside/outside digital thermometer for another purpose but decided to try it in the refrigerator. It works great. Here's a photo of the display unit and the remote sender. I had taken the remote out of the refrigerator about a minute prior to taking the photo. "Out" is the temp on the top door shelf  of the refrigerator.

It is frustrating that the simple bulb type broke. I prefer simple. But the remote does have the advantage of allowing display of the temperature with the refrigerator door closed. 

Here's a photo of the type which broke, before the glass bulb was fractured: