This handy thermometer has a fantastic specification, probably unmatched by any other instruments in this price range. It is boasts:

• A rapid response probe with a response time of under 6 seconds.

• It can be calibrated at any time by the user. (See below for instructions)

• The Comark PDQ400 is waterproof and dishwasher safe, making it ideal for testing that commercial dishwashers are reaching claimed wash temperatures.

• It has a large temperature measuring range of -20°C to 200°C making it suitable for a wide variety of applications.

• It has an outstanding level of accuracy for a thermometer at this price of +/-0.5°C.

• The casing features BioCote® anti-microbial protection. This provides an extra layer of protection that will last throughout the life of the instrument against the risk of the spread of potentially harmful organisms.

• Maximum temperature hold function

• Auto power off after 35 minutes.

How to Calibrate the Comark PDQ400

The thermometer can be calibrated at any time by the user. The procedure is quick and simple:

1. Put some water and crushed ice into a clean mug or water bath (approx 60% crushed ice to 40% water).

2. Insert the thermometer into the ice solution until the stem is covered to at least half way along its length.

3. Wait for the reading to settle.

4. Press and hold the D-H button for 8 seconds to begin calibration.

5. "CAL" will be displayed on the LCD screen and calibration at 0°C will be complete.