Models TA350/356 humidity indicator plugs are designed for easy mounting on reusable or long-term containers and enclosures. They detect changes in RH and offer a choice of reversible indicating discs (reusable) or permanent indicating discs (for monitoring maximum RH level over time). The brass model TA350 fits rigid containers; the anodized aluminum Model TA356 also accommodates flexible barriers. AGM Container Controls, Inc., (800) 995-5590
