C (NML/ROC) Dimension: 7.08 x 2.52 x 1.18 Inches (180*64*30mm) Weight: 8.8 Ounce (250g) Meter Made in Taiwan 60 Days Money-Back Guarantee To make sure our customers are satisfied with our products, we are happy to offer a 60 days Money-Back Guarantee. Thermocouple Thermometer TC0309, 4-Ch K Type Datalogger With Usb Pc Software Rs232 Output Thermocouple Type K Introduction Specs Guarantee Manuals Bulk Order Introduction TC0309 is a 4-channel digital thermometer for use with K-type thermocouple as temperature sensor. USB PC Interface with cable: Real Time Monitor, Graphic, Datalog , Storage , data import / export Internal DataLog Storage: 16,000 data logger records K Type 4 Channel Temperature Thermocouple 8G SD Card Logger Thermometer eBay The higher the volume, the bigger the discount. Four Channels Thermocouple Thermometer support K Type , 2.2 LCD display with Back Light Certificate of Calibration : National Measurement Laboratory R.O.C (NML/ROC) . Product Specifications - Measurement Temperature range : K: -200°C ~1370°C - (May require appropriate Thermocouple probes) Accuracy Input Protection: 60V DC or 24Vrms AC Maximum If for any reason you are not completely satisfied, return the product for a full refund. Product Specifications - Measurement Temperature range : K: -200°C ~1370°C - (May require appropriate Thermocouple probes) Accuracy : Accuracy is specified for ambient temperatures between 18°C and 28°C .