Chauvin Arnoux TK 2000 [P01653100] Thermometer Data Logger, -50 °C to 1000 °C Sensor Type K. Easily control temperatures under all conditions. The TK 2000 / TK 2002 thermometers are compact devices that are accurate and easy to use. Connect the thermo sensor, measure and done!. The Chauvin Arnoux TK 2000 contact thermometer has 1 channel and measured temperature. It has LCD display where the count are displayed up to 2000.