Digital thermometer addon for Printrbot Simple Metal

I wanted to know the air temperature around the active printing area, so I bought a [$2 digital aquarium thermometer](http://www.ebay.com.au/itm/LCD-Electronic-Fish-Tank-Water-Thermometer-Aquarium-Thermometer-Black-BU-/252024830133?hash=item3aadd9b8b5) and designed this Thing around it. [This Qooltek-branded thermometer from Amazon](http://www.amazon.com/Qooltek-Thermometer-thermostat-thermometer-Refrigerator/dp/B00PQ2GJNY) has the same nominal dimensions, so it should fit too.

The thermomete