The 3630 Data Logger Series are compact data loggers that are not much larger than a business card and weigh a mere 70 to 130 grams. Easy to operate, these handy instruments can record up to 16,000 or 32,000 data elements, and store data in nonvolatile memory that retains information even if the batteries are dead. The Data Logger Series includes models that can read temperature/humidity, instrumentation readings, voltage, current and other special types of data, and can be used in a broad range of measurements, including HACCP and ESCO applications. Data recorded in a DATA LOGGER can transferred to a personal computer through the 3911-20 Communication Base. Once the data is loaded into a personal computer, it can be processed, graphically displayed and managed on the PC.