Model A8-AF Radome Moisture Meter indicates the moisture pockets in aircraft radomes by measuring the radio frequency dielectric power loss of material in contact with the electrode sensor. The RF power loss absorption principle is a patented feature of all Moisture Register Products. The Model A8-AF consists of two basic components: the electrode sensor and the metering unit. These components are connected by a 2’8” cable attached with interchangeable push-in connectors. The separate electrode sensor permits testing in remote areas, and the simple operating procedures allow the Model A8-AF to be used by both technical and non-technical operators.

Equipped with a special direct reading, colored comparator scale calibrated for radomes, the Model A8-AF provides quantitative readings of Good, Fair, Poor, or Unacceptable radomes. The meter also has a low battery charge indication in the form of meter zero drift or pegging. The Model A8-AF Radome Moisture Meter is a direct replacement for the Model AFK2D which was the accepted instrument for many years in the aircraft industry for measuring moisture content of radomes. The A8-AF has a Direct Reading Colored Comparator Scale for instantaneous indication of moisture. Spring-Loaded Electrode Buttons allow nondestructive testing of irregular or curved surfaces.