AstroSystems Secondary DewGuard 3

Article number: DG3
Availability: Order now!
Delivery time: Ships in 2-3 Days from our Warehouse

AstroSystems amazing Dew Guard secondary heating system attaches directly to your secondary mirror and then automatically senses the air temperature and the mirror temperature, then maintains the secondary mirror at a preset (adjustable) temperature above the ambient air temperature. It gently warms the secondary with 2-4 watts when on full and has 4-8 evenly spaced contact points for optimum thermal distribution. Uses any external 12 volt dc supply or you can run on a 9v battery in a pinch. No more heat ropes!

2.4"-3.1" minor axis
3 watt max

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