The Thermal-Star Illuminated Thermometer lights up to make it easy to read temperatures in the dark. A button on the back of the unit will switch the display between Fahrenheit and Celsius. This model is powered via an external USB connection making it a great solution for internal and external use!

• Illuminated display for easy reading in dark
• Large temperature display range: -20°C - 70°C / -4°F - 158°F
• No battery required, runs off of computer's power supply

Body Dimensions:	47.5 x 28.3 x 16.7 mm
LCD Dimensions:	36.5 x 16.1 mm
Operating Voltage:	5VDC ± 0.2V
Rated Current:	25 mA
Power Input:	0.125 W
Display Range:	-20°C ~ 70°C
Test Range:	-50°C ~ 100°C
Accuracy:	± 1°C
Measure Period:	2 seconds

05-29-2012
Reviewer: Mike (3)
Ok, I submitted the above review but since then I have figured out how to keep it on C. The button, and sorry for the description if it is confusing, pushes in and stays in and also pops out (kind of like on and off). To change from F to C, you must push the button in, then back it out again. Now here is the important part, if you want it to stay on C, just push the button in again and leave it. Its like it locks the temp setting then. Hope this helps.

05-18-2012
Reviewer: Mike (3)
Displays temp accurately besides the decimal point. The decimal just seems to count up, then back down. Doesnt bother me since I wasnt looking for a perfectly accurate temp. Thing that does bother me is the C and F switch. You can change it to C by pressing the switch, but turn your system off and it resets back to F. Maybe im missing the trick? The switch they choose for this doesnt really make sense either. Anyway....works fine if you dont mind the decimal not being accurate and dont mind Fahrenheit. I would recommend it AND buy it again.