The Biosystems 54-49-200 MultiPro (LEL), (O2) and Duo-Tox (H2S) and (CO) Replacement Sensor Kit is for use with Biosystems by Honeywell MultiPro Multi-Gas Detectors only. Sold in kits of 3 sensors.
Available Replacement Sensors:
See TnA Safety, Webster, NY on MacRae's Blue Book