With its diameter of 53 mm it rounds off the portfolio downwards and is particularly suitable for diamond drilled NQ but also for BQ holes. The features of the 70 mm probe are also found in the little sister; interferencefree transmission with data buffer, shorter measuring time compared to the previous probes as well as an effective distance correction. The greater length of the IBERIA 53 is reduced to less than 1 m for transport by cutting it in the middle.