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Extech 421509 Information the information about the Extech 421509 thermocouple datalogger: Introduction The Extech 421509 is a dual-input thermocouple datalogger that can measure temperatures from -200 to 1700 degrees Celsius (-328 to 3092 degrees Fahrenheit). It has seven pre-set sensitivities for the most common thermocouple types, including K, J, T, E, R, S, and N. The datalogger can store up to 10,000 readings, and it has a built-in memory card slot for expanded storage. It also features a large backlit LCD display, programmable alarms, and a HOLD function.

TFA 30.5028 Information the information about the TFA 30.5028 digital thermo-hygrometer: Introduction The TFA 30.5028 is a compact and stylish digital thermo-hygrometer that can be used to monitor the temperature and humidity levels in your home. It has a clear LCD display that shows the current temperature and humidity readings, as well as the maximum and minimum values recorded since the unit was last reset. The thermo-hygrometer also features a pair of tendency arrows that indicate whether the temperature or humidity levels are rising or falling.