Meters you can count on to deliver accurate, reliable data Improved 3-Star meters are ideal for labs with strict calibration, measurement, and datalogging requirements 3-Star meters now include an improved stability algorithm to increase calibration and measurement accuracy. Meters can now be paired with auto-samplers for increased sample throughput. Increased memory allows you to log more data points and even turn off the data log if desired. Improved security is offered by new individual methods passwords. Temperature accuracy can be ensured with the ATC temperature calibration feature. All Orion Star Series meters include a convenient Quick-Start guide to help you get started and provide support while in use. Smart Stability™ and Smart Averaging™ ensure accurate results. GLP-related features including datalogging with time/date stamp and electrode verification. Meters feature automatic or manual pH calibration, auto-buiffer recognition, advanced self-tests and self-diagnostics, and RS-232 or optional USB connectivity. Return Policy Items are sold as-is with no returns or refunds available unless explicitly stated.