The Track-It™ Pressure Transmitter/Data Loggers with Digital Display are 24Vdc powered 4 wire transmitters that can also record up to 130,000 samples for logging, redundant data backup or archive. These are different than the Pressure Display standalone Data Loggers which do not transmit but store data internally and download through a USB cable to a PC. They can be configured to record both pressure or vacuum and ambient temperature or just pressure or vacuum alone to maximize data storage space. Real time data, alarms and min/max information can be displayed on the mult-line LCD. The unit is easily configured using the free downloadable Track-It™ Software. Simply connect the included USB cable to the logger and an open USB port on your PC and the Track-It™ Software automatically identifies the logger.