Some time ago the folks at Farnell UK wrote to me offering to send me any piece of equipment they sell (up to a certain £ amount) on the condition that I review it. I racked my brains for something I'd want (excluding a free Raspberry Pi which was an impossible ask) and settled upon an infrared thermometer . They sent me a TENMA 72-8730 . It's a very simple to use device: point at it the thing you want measured and get a temperature reading. The display shows the current temperature and the maximum temperature read so far (this can be changed to show minimum). The thermometer does C and F measurements and has a backlight for the screen and a laser for aiming. The thermometer has a 10:1 spot ratio which means that the spot being measured will have a diameter of 1/10 of the distance away from the thermometer. Thus when measuring at a distance of 1m the spot has a diameter of 10cm. You need to get close to get a precise measurement. It's accuracy is given as