1. The main unit can be plugged into K/J type thermocouples, 4-channel display 2. °C/°F temperature unit switch 3. Data retention, maximum/minimum value display, automatic shutdown after 15 minutes of no operation (can be manually canceled) 4. Can record data download, communicate with the computer in real time, and display real-time data tables 5. Can set upper and lower limit alarm values, visual alarm prompt light With ADJ compensation Main unit measurement range: K-type probe: -200°C-1372°C (-328°F-2501°F) J-type probe: -200°C-1200°C (-328°F-2192°F) Standard K-type probe: -50°C-300°C (-58°F-572°F) Accuracy: Main unit: ±0.2%+0.7°C; Standard probe error: ±1.5% Resolution: (-99°-999.9°) 0.1°C/°F; (-100°--200°≥1000°) 1°C/°F High alarm: default value 1300°C, low alarm: default value -200°C ADJ compensation: -9°C - 9°C probe error range compensation Nut with bracket: 1/4 inch nut Adoption rate: 1 time/second Automatic shutdown: 15 minutes (can be turned off manually) Colour: Material:plastic Package Contents: 1 x Thermometer 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.