Fast-action spot check thermometer with special probes for hotels, industrial kitchens, catering industry, supermarkets etc. - Stable surface probe for checking cooking plate, heating and baking tin temperatures e.g. in fast food restaurants. - Robust immersion/penetration probe to monitor cooking processes or cooking oil temperature. - Super-fast needle probe for temperature checks on thin goods such as hamburgers. - Air probe for a fast temperature check e.g. in freezers. An additional temperature probe can be displayed in the Testo 925 Thermometer; data transmission is by radio, i.e. wireless.