Sperian introduces its smallest confined space detector - Biosystems MultiPro. Real time readings of up to four gases simultaneously, one button operation and calibration, easy-to-read LCD display, audible and visual alarms, event logger, IrDA port, optional sample draw pump, rugged, compact and affordable. With the Automatic Docking Station (sold seperately) you can save on calibration gas costs, automate your record keeping, and ensure your instrument is working to specifications.