thermocouple thermometer main unit ranges from -50°C to 1370°C(-58°F to 2498°F) and includes two thermocouples and 2 Stainless Steel K Type Thermocouples that can measure -50 to 500°C(-58 to 932°F). Support °C, °F, K temperature modes to meet your various measurement needs. The k type thermocouple is equipped with a calculation function to measure the temperature difference between two samples with a reading accuracy of 0.1-0.4° C. In addition, the thermocouple also has MAX/MIN/AVG, Data Hold, automatic power off function, so that your measurement work is more efficient and convenient. thermocouple thermometer is battery-powered, portable, built-in folding frame, only 6 simple buttons, clear instructions for use, suitable for beginners, engineers, scientific researchers, laboratory technicians, factories, hospitals, families, etc. Our thermometer is made of high-quality materials to ensure reliable performance in a variety of working environments. The main unit is protected by a removable silicone rubber holster to prevent accidental drops and shocks and extend service life. ac temperature gauge are suitable for high temperature measurements in stainless steel, ovens, furnaces, ceramics, ceramics, molten metals, and various other industries. Colour:As Shown Material:Metal + Plastic Package Contents: 1 x K-type thermocouple, 2 x Wired K-type bead tip thermocouples 2 x Stainless steel K-type thermocouples 1 x 9V battery 1 x Silicone rubber sheath Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.