Description
Keep dew from forming on your Newtonian or Dobsonian telescope's secondary mirror with this compact, low-power heater from Starfield Optics. Designed to wrap securely around a 2-inch secondary mirror stalk, it helps prevent condensation without placing a heating pad directly behind the mirror.
Highlights
- Large version designed for Newtonian secondary mirror stalks measuring approximately 2 inches
- Operates on 12V DC and consumes just 3W (approximately 0.25A)
- Includes a 2-metre silicone power cable
- Wraparound construction for straightforward installation
- Can operate from a suitable 12V supply without a separate dew controller; compatible with popular controllers according to Starfield Optics
Compatibility
Measure the diameter and available clearance of the secondary mirror stalk or holder before purchasing. The 2-inch measurement refers to the stalk, not the telescope aperture or the secondary mirror's optical diameter. Check power connection and cable-routing requirements for your setup.
Manufacturer part number: DH-SL
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