This digital thermometer can be used to measure up to 4 different temperatures simultaneously. Features: Digital LCD display with backlight, easy to read values. K-Type thermocouple inputs, measure 4 different temperatures simultaneously. Measuring range: -50-1350°C; °C/°F/K unit conversion. Max./Min./Average values recording function. Data hold function. Auto Power off with no operation within 10 minutes. With low battery indicator. 5 operation buttons, convenient to operate. Specifications: Color: Black Material: ABS Plastic Measuring Range: -50-1350°C / -58-2462°F / 223-1623K Temperature Accuracy: (0.015%rdgand1°C/1.8°F) Temperature Resolution: 1000°C: 1°C Operating Temperature: 0-50°C / 32-122°F Operating Humidity: 10%-90%RH Storage Temperature: -10-60°C / 14-140°F Storage Humidity: 10%-75%RH Power Supply: 1 x 9V Battery(NOT Included) Probe Sensor Length: 95cm / 37.4in Product Size: 16 x 5.2 x 3.2cm / 6.3 x 2 x 1.26in Product Weight: 122g / 4.32oz Package Size: 18.5 x 10 x 4.5cm / 7.3 x 3.94 x 1.77in Package Weight: 205g / 7.23oz Note: This instrument can't work when probes are disconnected. Packing List: 1 x 4-Channel K-Type Digital Thermometer 4 x Probe Sensor 1 x Storage Bag 1 x User Manual(English) Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.