brand new and high quality This is a professional digital Thermometer with 2 external K-Type Thermocouples for high temperature measurements. You can replace the thermocouples with any standard K-Type thermocouple connectors. The thermometer has advanced features with 5 digits LCD Display and able to display Higher Temperature Range (up to 1300 C / 2372 F), Higher Resolution (up to 0.1 C / 0.1 F) and Higher Accuracy (up to 0.1 C). Moreover, you are able to fine tune the temperature by using Self-Calibration Function and Restore Factory Setting. It has a wide range of applications in Ovens, Furnaces, Ceramics, Pottery, Molten Metal and many other industrial uses. Features: 5 digits Large LCD display High Resolution up to 0.1 C & 0.1 F User Calibration of Temperature and Restore Factory Setting Low battery indication Data Hold function mode Maximum (MAX), Minimum (MIN) and Average Temperature Measurement (AVG) 2 channel temperature measurement (T1 & T2) Differential Temperature Measurement (T1 - T2) for Extra 2 pieces of Metal Temperature Probes Switchable between C, F & K Specifications: Temperature range: -50 ~ 1300 C (-58 ~ 2372 F) Accuracy: 0.1 C 0.4 Operating Temperature: 0 ~ 40 C (32 ~ 104 F) Operating Humidity: 0 ~ 70 % (R.H.) Power current: One K-type: approx for DC 2.8mA( typical) / Two K-type: approx. for DC 3mA(typical) Celsius and Fahrenheit selectable Input protection: 60V for DC or 24V AC maximum input voltage on any combination input pins Reading rate: 2.5 times per second Input connector: accept standard miniature thermocouple connectors Battery: 1 x standard 9V battery (included) (included) Size (L*for W*for T): 15.5 x 7.5 x 4.1cm/6.10"x2.95"x1.61"(approx) Quantity: 1 set (as picture show) Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. Please understand, Thank you