Roofing materials and long term monitoring

1. Regarding sensor lifespan, Azxon sensors do not use batteries and are only powered when the sensor is read, which means that for most of the time, the sensor is in an inactive state. Furthermore, the materials used to construct our sensors are highly stable and nearly impervious to corrosion. We also subject our sensor designs to accelerated aging and stress testing during qualification. As such, we believe the operational lifespan of our sensors is at least 15 years.

2. In terms of reading through a thick layer of building materials, Axzon sensors can be read through most building materials, including stucco and deck coating. However, if the sensor is integrated with a full-metal roof and the sensor is within several millimeters of the metal, then the roof may shield or interfere with the sensor antenna. In these cases, the sensor would need to be separated from the metal roof by several centimeters.

3. The Axzon sensor does not need to be “wet” to detect moisture. Our sensors have been used to determine moisture content of various wood products by being placed in proximity to the wood.