The original version of this product has probably been the most widely chosen oven-cooking alarm in the market. It's not easy to improve on that but ThermoWorks has. From customer comments, the most frequently suggested new feature has been an On/Off switch to save on battery life. (The old one couldn't be shut off but batteries lasted months.) So, they have updated the housing to a more robust design and added a slide switch so the unit can be powered off. The proven circuit is the same and the button arrangement is slightly improved. The well-loved simplicity has been kept so you won't need to find the instructions each time you set an alarm. The new stylish housing folds the display up for counter use or flat for less obtrusive magnetic mounting to an appliance door. Cook's Illustrated said this: "The best of the bunch, an easy to use thermometer from ThermoWorks..." and "This user-friendly model allows you to view both time and temperature simultaneously and is free of the annoying and unnecessary USDA r