Micro Temp Digital Thermometer. This keychain sized digital thermometer is designed to give you a fast readout of the temperature of any surface at the push of a button. It’s accurate to within 4.5 degrees F, which should be enough to tell whether your laptop is really about to explode or if it’s just a case of toasty tech in action. $24.95.
By measuring infrared radiation, the MicroTemp thermometer can tell you the temperature of any surface with the touch of a button. Lightweight and portable, it’s useful for lots of do-it-yourself projects, including PC maintenance, automotive inspection, HVAC applications, food prep, metallurgy and much more. Includes wrist strap. Requires 2 LR44 batteries, included.