Gas Canister for testing CO / Carbon Monoxid Fire Detectors - Hjemmealarmer.com Gas Canister for testing CO Fire Detectors • Suitable for use on CO Fire Detectors • Designed for use in Solo 330 (332) Dispenser • See Solo 330 (332) Instructions for... gas, canister, testing, fire, detectors, suitable, use, designed, solo, 330, (332), dispenser, see