Thermalite 2 Digital Thermometer Grey: The ThermaLite 2 Thermometer is a great hand held and lightweight catering thermometer: The ThermaLite 2 thermometer is a great pen shaped thermometer with many benefits at a great price. The ThermaLite 2 has assured accuracy for life, along with a 2 year warranty and free traceable certificate of calibration. The thermometer features a CalCheck unction at 0° for handy on site testing. With a temperature range of -39.9 to 149.9°C the ThermaLite 2 is perfect for taking temperatures of liquids and semi-solids.