The Extech 392050 is a rugged, analog-style digital thermometer with a pointed stainless steel penetration probe designed for accurate internal temperature measurements in semi-solids, liquids, and soft materials. Ideal for HVAC, food safety, laboratory, and industrial applications, it features 0.1° resolution below 200°, ±2°F/±1°C accuracy, auto power-off, and includes a protective plastic sheath with pocket clip for safe storage and portability.