Features High measurement accuracy: The thermocouple thermometer is easy to use and has no restrictions on size and opening. The measurement accuracy is high. Since the thermocouple sensor directly contacts the object, it will not affect the medium. Optional measurement unit: Thermocouple temperature meter can select measurement unit (℃ or ℉), with data storage of maximum, minimum and average values. LCD temperature meter resolution is 0.1℃/℉, Large LCD display with backlight: The digital temperature meter is designed with a humanized front panel and a large LCD with backlight, which can display measurement readings and thermocouple types at the same time, which is easy to operate. K-type thermocouple measurement: LCD temperature meter uses K-type thermocouple to measure, the measurement range is -50℃ to +300℃, and the accuracy is +/-1.5% (if the temperature exceeds 300℃, the user must insert the high temperature Type thermocouple) Compensation error: The electronic temperature compensation system compensates the errors of different thermocouple sensors to achieve the maximum accuracy of the machine. Features: High measure accuracy. Due to thermocouple sensor direct contact the object, don't affective with the media. Easy to use, no limitation of the size and opening. The measured unit can be selected (℃ or ℉). Data storage with Maximum and Minimum and Average. User-friendly front panel design, easy for operation. Large LCD display with back Light, show measurement reading and thermo-coupler type at the same time. Measure with K type thermo-coupler. Electronic temperature compensation system to compensation the error for different thermocouple sensor, can achieve the maximum accuracy of this unit. Specification: Condition: 100% brand new Brand: SMART SENSOR Model: AS857A Main unit AS857A Thermometer: Measure range K-type: -200℃ to 70℃, (-328℉ to 1292℉) Resolution: 0.1℃/℉ Accuracy : 0~100℃: +/-1.5℃; over 100℃: +/-2% Input port: Single channel input Operation temperature: 0℃ to 50℃ Storage temperature: -10℃ to 50℃ Operation Humidity: 20-90% Power Supply: 3*1.5V AAA Battery (NOT included) Dimension: 50 * 25 * 131mm / 2 * 1 * 5.2in Weight: 120g/4.2oz K Type thermo-couple sensor: (Included in this package) Temperature range: -50℃ to +300℃ Accuracy: +/-1.5% (if measure temperature over 300℃, user must insert a high temperature type thermo-coupler) Package List: 1 x Digital Temperature Meter 1 x K-type Thermocouple  1 x User Manual Package List