IR-20 Non-contact Digital Laser Infrared Thermometer by Dr.Meter.  -50°C TO +550°C Temperature Range.  Memory function, recalls your last reading even after power off.  3 Modes – Find the max and min or regular temperature of any reading.

Since this is no touch, you can check the temp of yeast washing and yeast rehydration water and your starter wort without the risk of infection.  I find mine particularly useful for rehydrating yeast.

Infrared thermometers should not be considered a direct replacement for a conventional thermometer.  A quality IR thermometer will give you a close approximation of surface temperatures.  Note that steam seems to throw off readings.  Uses include: Contained yeast rehydration water, chilled wort or starter temperature, kegerator, fermenter or fermentation area and beer tasting samples.  If you’re looking for a great conventional thermometer consider Thermapen ONE – Hands on Review

Update: Since this post was published the price, availability or promotion has changed.  Check the product page for current description, price and availability.  Also: Today’s Deals on Amazon

Dr.Meter IR-20 Non-contact Digital Laser Infrared Thermometer, -50°C to +550°C, Memory Function