The main unit's temperature range is -328~2501℉(-200~1372℃); Wired K Type Probe: -20°C~200°C (-4°F~392°F); Stainless Steel K Type Probe: -50°C~700°C (-58°F~1292°F) The thermometer also features a large LCD display with backlight for easy reading, data hold function, and low battery indication. Only 5 basic buttons with clear indications, making it perfect for both beginners and professionals. It has a wide range of applications in Ovens, Furnaces, Ceramics, Pottery, Molten Metal, and many other industrial uses. Resolution: 0.1°C or 0.1°F Accuracy: ±0.1°C ±0.4 (not including probe error) Temperature channel inputs: T1 & T2 Storage environment: 10~50°C (50~122°F), 0~80% RH Operating Environment: -10~50°C (14~122°F); 0~70% (R.H.) Power supply: 1x 9V Battery (WITHOUT) Material: Plastic colour: black Package Contents: 1 x K-Type Thermometer 2 x Wired K-type bead-type tipped Thermocouples 2 x Stainless Steel Type K-type Thermocouples 1 x Carrying Pouch 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.