Thermometer Base Unit Only: The KM330 Industrial Thermometer is a Value for money electronic, Type K thermocouple thermometer for checking temperatures in industrial applications plus those in heating, ventilating, air conditioning and refrigeration. •Selectable 0.1°/1° resolution •Displays temperature in °C or °F •Maximum temperature memory •Hold function to freeze displayed reading •Protective slip-on boot with desk stand •Sub-miniature connector .