AstroSystems amazing Dew Guard secondary mirror heating system automatically senses the air temperature
and the mirror temperature, then maintains the secondary at a preset (adjustable) temperature above the
ambient air temperature. Gently warms the secondary at 2-4 watts when on full. The DG-1 has 4, The
DG-2 has 6 and the DG-3 has 8 evenly spaced contact points for optimal thermal distribution. Uses any
external 9-15 volt dc supply or you can run on a 9v battery mounted at the holder, eliminating the need
for wires across the spider. No more heat ropes! Three sizes to choose from.
The Kendrick Dew Remover System has been the industry standard for effective dew removal and prevention
on all optical surfaces where moisture condensation is a problem. Kendrick is the original innovator of
these systems and we continue to lead the marketplace with our innovative product design and concepts.
Our system has heaters for almost all the optical components used in amateur astronomy, several
controllers with different levels of functionality and is the most sophisticated on the market.
