HONEYWELL, Ammonia/Chlorine/Hydrogen Cyanide/Lower Explosive Limit/Oxygen, Black, Multi-Gas Detector - 499A19|MBB3-06C178E-020 - Grainger
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ClO2 Detector | Pump-Type Chlorine Dioxide (ClO2) Monitor Analyzer | Rugged Aluminum Case | Water, Dust & Explosion Proof | USB Rechargeable Battery | Adjustable Alarms | 0-10ppm - - Amazon.com
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RKI Instruments SC-01 Single Toxic Gas Monitor, Chlorine (CI2), 0 - 3.00 PPM, with Alligator Clip - 73-0050RK-CL2
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