I got the same thing at newegg.com, but it's made by enermax and comes in a 5 1/4 casing that you can put in a drive bay and has two temperature monitors, exactly the same as the compunurse. Also, they are removable from the 5 1/4 casing if you want to take them out.
Check Newegg.
It's called the Enermax Temperature Monitors. 2 LED display. 5.25" bay cooling device. Plastic frame design. Expandable to equip 2 80MM cooling fans. Fan not includede. Please see images. Model#: UC-001TM2 Special FedEx Saver Shipping $6.00
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$16.00