Data logger
The new I-Plug TH family of data loggers is available in both single-use (IPSH20) and multi-use (IPMH20R) models. These loggers offer built-in alarm indicators that support up to four user-programmable high/low alarm limits, a programmable sample rate, and storage for 10,000 temperature and 10,000 humidity points. No special software is required to generate reports; simply plug them into a computer and download the data.
from CAS DataLoggers