Celestron Dew Heater Ring 94055 black aluminium for 5-inch SCT telescopes

The Celestron Dew Heater Ring 94055 black aluminium for 5-inch SCT telescopes is an essential astronomical accessory engineered to keep your optics clear during long observation sessions. Designed specifically for 5-inch Schmidt-Cassegrain telescopes, this device prevents dew accumulation on the corrector plate by delivering efficient, direct thermal performance. Crafted from durable black aluminium, it replaces the standard retaining ring for a seamless and permanent integration with your optical tube.

Advantages

This dew heater ring offers superior thermal efficiency compared to traditional heating strips by directing warmth straight to the corrector glass rather than the surrounding lens cell. Its rigid yet lightweight aluminium construction ensures long-lasting durability while maintaining the balance of your telescope setup. The integrated power cable and built-in thermistor provide reliable connectivity and smart temperature monitoring when paired with compatible controllers, keeping your equipment operating at peak performance throughout the night.

Suitable for

• Preventing dew formation on 5-inch Schmidt-Cassegrain telescopes during extended night observations
• Astrophotography and visual astronomy sessions in humid or cold environments
• Astro-hobbyists looking for a permanent and streamlined dew prevention upgrade

This product may not be suitable if you use telescopes with apertures other than 5 inches or optical designs outside of the Schmidt-Cassegrain family. It is also not fully optimized for standalone smart thermal control unless paired with a dedicated controller, though it can still function with a standard 12V DC power source.

Key specifications

• Compatible telescope size: 5-inch Schmidt-Cassegrain optical tubes
• Material: Durable black aluminium
• Outer diameter: 14.6 cm
• Inner diameter: 12.7 cm
• Weight: 46.3 g
• Included accessories: Power cable, cable management clip, storage clips

To use the Celestron Dew Heater Ring, permanently mount the aluminium ring to the front cell of your compatible telescope by replacing the existing plastic retaining ring following the provided installation guidelines. Connect the integrated power cable to an appropriate 12V DC power source or a compatible dew heater controller to begin warming the corrector plate. Utilize the included cable management clips to secure the wiring and prevent accidental pulls during your observation session.

What to consider before purchase

• Verify that your telescope is a 5-inch Schmidt-Cassegrain model to ensure proper physical compatibility
• Check your power supply availability to ensure you can provide a reliable 12V DC connection in the field
• Determine whether you plan to use a smart dew controller to fully leverage the built-in thermistor features

Usage recommendations: For optimal energy efficiency and precise temperature management, pair the dew heater ring with a compatible Smart DewHeater Controller and consider using an additional physical dew shield to minimize overall battery power consumption during prolonged astrophotography nights.