190-T4 - CFR temperature data logger with two long, flexible probes

The testo 190-T4 CFR temperature data logger is equipped with two long, flexible temperature probes, enabling simultaneous dual-point temperature measurement in sterilization and freeze-drying validation applications. This dual-probe capability is particularly valuable for determining the acclimatization time between core and outer temperatures in thick product loads or biological materials - a critical measurement in regulated sterilization and lyophilization cycle development. Each flexible probe can reach into corners, crevices, and complex load configurations within process chambers where single-probe access would be insufficient for complete validation coverage. The sealed housing maintains IP integrity after battery replacement, and multiple 190-T4 loggers can be simultaneously programmed and downloaded via the testo 190 multifunction case. Fully compliant with 21 CFR Part 11 requirements for regulated electronic records.