Multi Gas Monitors
Biosystems by Honeywell
Biosystems MultiPro- Discontinued
One to four gas monitor with an interchangeable battery. This monitor has been discontinued. Limited parts still available for service. The BW MicroClip XL/XT is a suggested replacement.
Biosystems PHD 6- Discontinued
One to five gas monitor, a variety or different battery, pump, and sensor options. The BW Ultra is a suggested replacement.