Astrozap Heater Strap for 9.25" and 10" Scopes

AstroZap Dew Heater Strap for 9.25" and 10" Telescopes

The 9.25" and 10" Schmidt-Cassegrains are two of the most beloved telescopes in amateur astronomy. Their generous apertures and well-balanced designs make them top picks for everything from planetary imaging to deep-sky exploration. But with great aperture comes great dew collection. That’s where the AstroZap Heater Strap comes in—delivering reliable, even warmth to protect your corrector plate from moisture and keep your optics performing at their best.

This flexible dew heater is designed to fit both Celestron 9.25" and 10" SCTs, as well as other optical tubes with similar outside diameters. The strap uses a safe, low-wattage nichrome heating element embedded in a rugged, fabric-backed band. It wraps snugly around your optical tube and fastens securely with a Velcro closure, ensuring full contact for uniform heat distribution. A built-in RCA connector makes it compatible with most standard 12V dew controllers (sold separately), so you can fine-tune your power draw and extend your battery life during long observing or imaging sessions.

Whether you're out under the stars for visual enjoyment or chasing photons for your latest astrophotography project, this heater strap is a must-have accessory for keeping the dew away and the details sharp.

Features:

• Fits Celestron 9.25" and 10" SCTs, and other scopes with similar OD

• Embedded low-wattage nichrome heating element for gentle, even warmth

• RCA-style plug for use with standard 12V dew controllers

• Velcro closure for quick, secure attachment

• Durable, fabric-backed construction made for field use

• Ideal for keeping corrector plates and front optics dew-free

Observing Tip:
Dew doesn't wait until you're ready—it creeps in when conditions change, often just as your session is hitting its stride. Start your dew heater when you begin setting up to stay ahead of the curve. And don’t forget: larger corrector plates take longer to cool and attract more moisture, so a dew strap on a 9.25" or 10" SCT is not just recommended—it’s essential.