Honeywell BWC2-X O2 Single Gas Detector (2 Year)

The BW Clip single-gas detector is your everyday companion for hazardous environments. It operates up to three years
maintenance-free: Just turn on the device and it runs continuously — no need for calibration, sensor replacement,
battery replacement or battery charging. That means great reliability and no downtime.

Plus, with the two-year BW Clip for H2S or CO, you can put the device in a hibernation case when you’re not using it for a week
or more — and extend its life by that period of time.