AGM carries a wide variety of Humidity Indicators, including Humidity Meters and Humidity Indicator Cards, Plugs and Observation Windows. Our Humidity Indicator Cards, Plugs and Observation Windows are non-electronic and provide the current relative humidity inside containers.  AGM’s Humidity Indicators meet various SAE Specifications and can be used with Desiccant and Breather Valves to provide a complete environmental control system. Our Humidity Meters are electronic, programmable devices with alarms that warn of high or low humidity conditions.  The easy-to-read LCD monitor displays current percent relative humidity, temperature, and dew point.