Affordable set for infrared and core temperature measurement. The infrared thermometer testo 831 measures surface temperature without contact. The measurement spot diameter of this practical infrared thermometer is only 3.6 cm at a distance of 1 meter. The advantage: even smaller objects, such as yogurt cups, can be measured almost in passing. The 2-point laser marking accurately indicates the measurement circle, helping to avoid measurement errors. The core thermometer testo 106, with its thin, robust measuring tip, is excellent for quick core temperature checks on sensitive foods. It leaves hardly visible puncture holes. Both tools are small, handy, and always within reach.