
Fall Protection & Respiratory
4-Gas Calibration Gas - 50% LEL Methane / 18% O2 / 25 ppm H2S / 100 ppm CO, 34-116 L
- Calgaz · MSA · Industrial Scientific
- CH4 2.5% (50% LEL) / O2 18% / H2S 25 ppm / CO 100 ppm / N2 balance

Clip-on gas monitors with no charging, sensor changes or calibration over their 2-3 year life (bump test before use). Lets every crew member carry a monitor for trench, manhole and confined-space work.
Tell us quantity, sizes and delivery city. Volume pricing and custom branding are confirmed on a written quote.
Clip-on gas monitors with no charging, sensor changes or calibration over their 2-3 year life (bump test before use). Lets every crew member carry a monitor for trench, manhole and confined-space work. • Single-gas H2S, CO or O2: 2- or 3-year runtime, then replace • 2-year 4-gas option (LEL/O2/H2S/CO) with no battery or sensor changes • Loud audible, visual and vibrating alarms • Intrinsically safe rating per model (UL/CSA Class I Div 1) • Shows remaining-life countdown; bump-test gas: PB-FALL-068 • Supports OSHA 1926.1203/1910.146 atmospheric testing Brands we quote: Honeywell BW · MSA. Brand names are trademarks of their owners. Mays is an independent supplier, not an authorized agent of any brand; current manufacturer models are confirmed on your written quote.

Fall Protection & Respiratory

Fall Protection & Respiratory

Fall Protection & Respiratory

Fall Protection & Respiratory