Seven different data loggers make up the 176 data logger series and can meet a variety of different temperature, humidity, and pressure data logging needs. Depending on the model selected, the data loggers can manage up to five channels for pressure, temperature, and humidity, and can be used for laboratories, clean rooms, and hospital control areas. The 176 T1 is a one-channel temperature logger. It can provide highly accurate temperature measurements in extreme conditions, and its robust metal housing protects the data logger from dirt, impact, and moisture. The 176 T2 is a two-channel temperature logger with an external sensor, allowing for temperature monitoring in refrigeration chambers. The 176 T3 data logger jumps to managing four channels of temperature data with a tough metal housing and comes with external thermocouple connections. The 176 T4 is a four-channel temperature data logger that can provide parallel temperature measurement readings at up to four different sites using thermocouple probes (Type T, K, and J). The 176 H1 and 176 H2 are both four-channel temperature and humidity data loggers with external sensors. The H1 has an easy-to-read display right at the unit, while the H2 is protected by a metal housing. The 176 P1 data logger is a five-channel pressure, temperature, and humidity data logger with both internal and external sensors and a clear, easy-to-read display right at the unit that can store up to 2 million measurement values.