Product Introduction: This thermometer can be used to measure up to 4 different temperatures simultaneously. Features: 100% brand new LCD display with backlight Type K Thermocouple input 4 Thermocouple input MAX / MIN / Average values hold Selectable °C ; °F and K display Auto Power off with no operation within 10minutes Specifications: Measurement Temperature range : - 200°C ~ 1372°C (-328°F ~ 2501°F) (May require appropriate Thermocouple probes) Accuracy : > - 100°C (-148°F) : ± 1°C (± 1.8°F) - Typ. < - 100°C (-148°F) : ± 2°C (± 3.6°F) - Typ. K Type Temperature resolution : < 1000°C : 0.1°C/°F / K > 1000°C : 1°C/°F / K Size : 200 X 85 X 38 mm Weight : 230g (Without battery / probes) ProductOutlook and Functions: Probesocket and Thermocouple probes LCD PowerON/OFF button HOLD– Suspend measurement and hold the current measurement data UNIT– Switch among °C ; °F and K display unit Backlit– Turn ON / OFF the display backlight MAX– Turn ON / OFF the maximum temperature values MIN– Turn ON / OFF the minimum temperature values AVG– Turn ON / OFF the average temperature values from turning on the instrumenttill pressing AVG button. Battery compartment Operating Instruction : Put in a 9V battery by opening the battery compartmentcover using a screwdriver.(The 9V battery included) The instrument requires Thermocouple probesto be inserted to measure temperatures. There are 4 probe sockets on the top and corresponding to T1 to T4 respectively. (The probe has + and – terminal andthey need to be inserted into sockets with correct polarity). This instrument can’t function with probe disconnected. This instrument is simple to use and please refer to below section for each key’s function.