Digital thermometers are getting better all the time, and this model is one of the best we have seen. Housed in a durable stainless steel case, it features a Quick Tip™ probe (on a 5" stainless probe stem which is 1/8" in diameter) for the fastest response time yet in a digital (8 seconds or less to display the correct temperature).
In addition, it is waterproof and self-calibrating. To calibrate, place it in a crushed ice solution, and press the calibration button. Within seconds, it has calibrated itself to 32° F. (the temperature of a crushed ice and water solution).
It also includes a maximum temperature function, so you can leave it in your fermentation or aging area and have it record the maximum temperature, and a data hold button, so you can lock the reading in low light conditions to read in a brighter area. To save batteries, it shuts off after 10 minutes of use. Temperature range: - 40° F. to 450° F.
This thermometer features a manufacturers 5 year limited guarantee (return it to the address on the back of the package for replacement or repair for 5 years after purchase).