Testo 174t 1 channel set temperature data logger testo 0572 0561 p this mini data logger for temperature from testo has a memory capacity of up to 16000 readings saved measurement data will not be lost even when the battery is empty or being replaced you can easily see the current reading shown on the large display along with any possible violations of limit values p p the temperature sensor which is integrated into the data logger is an ntc sensor with a high level of accuracy the