>>1143741>>1143760>>1144083Bitch I work with confined spaces, you don't fucking skimp out on the gas sensors stop being cheap. CO2, CO, O2, LEL, H2S are critical for caving or mining. Ideally bring a PID too, for those odd or rare gas buildups. You don't have to ID it, just know it's dangerous to go ahead. Don't bother with ammonia sensors, they have garbage limits and PIDs are more accurate, you'll know if it's ammonia by the smell long before you hit any exposure limits.
