The Testo 0609 1973 is a robust, waterproof surface probe that can precisely measure the temperature of surfaces from -50 to 400 °C (-58 to 750 °F) with a Class A accuracy rating according to standard 60751 for temperatures up to 300 °C. For temperatures up to 400 °C the accuracy is rated to Class B.
The measuring probe has a length of 4.5 in (114 mm) and its diameter is 0.197 in (5 mm) and the fixed cable has a length of 3.9 ft (1.2 m). The diameter of the probe shaft tip is 0.354 in (9 mm). The 0609 1973 has a reaction time of 40 seconds. The probe being precise and compliant with EN 13485 and HACCP allows it to be very useful in the food sector and laboratories.