Extra Big for 9-10'' telescopes

  • Price: $70.00



Extra Big Dew Heater for 9-10’’ Telescopes - Superior Power and Efficiency by R-Sky


In regions with high humidity, there are nights when the standard combination of dew heater and dew shield might fail, causing dew to accumulate on the corrector or meniscus of your telescope. When this happens, the Extra Big Dew Heater is your solution.


Extra Big Dew Heater - enhanced power and performance for challenging conditions!


This premium dew heater is meticulously designed to tackle dew and condensation. It is ideal for all types of Schmidt-Cassegrain, Maksutov-Cassegrain catadioptric telescopes, and Rowe-Ackermann Schmidt Astrograph (RASA).


Popular telescopes with apertures of 9-10 inches for which this dew heater will work:

1. Celestron NexStar 9.25

2. Meade LX200 10” ACF

3. Orion 10” f/14.3 Maksutov-Cassegrain

4. Celestron CPC 925 GPS (XLT)

5. Meade LX90 10” ACF

6. Celestron EdgeHD 9.25

7. Sky-Watcher 250mm Maksutov-Cassegrain

8. Celestron 9.25” Rowe-Ackermann Schmidt Astrograph (RASA 9.25)


This dew heater is also suitable for other telescopes of similar size.


Main Features and Advantages:

High Power and Large Heating Area: Ensures effective results even in the toughest conditions.

Hand-Assembled Quality: Each R-Sky heater is carefully assembled by hand, guaranteeing rigorous quality control at every step.

Efficient Heat Distribution: Advanced manufacturing techniques direct maximum heat to the optics, minimizing heat loss to the environment.

Uniform Heating Surface: R-Sky heaters provide consistent and even heating across the entire surface, unlike other technologies.

Durable and Flexible Power Cord: Remains soft and flexible even in sub-zero temperatures. Each cord is hand-assembled to meet our stringent standards, outperforming typical Chinese audio cords used by competitors.

Tangle-Free Design: Avoid the hassle of tangled wires, especially during night observations, with our specially designed, tangle-free cords.

Standard Power Cord Length:  47 inches / 120 cm

Power Connector: RCA (male).

Power Supply: 12 V.


Optimal Performance with Controllers:

For the best results, pair this heater with one of our controllers. This allows precise adjustment of the heating power, preventing the optics from overheating and conserving battery power.


This dew heater from R-Sky is designed to provide exceptional quality and reliability. Choose the Extra Big Dew Heater for 9-10’’ telescopes by R-Sky to keep your equipment in peak condition, ensuring a superior stargazing and astrophotography experience. Eliminate the issues caused by dew and condensation—invest in the Extra Big Dew Heater for 9-10’’ telescopes for consistent and efficient protection.


Dew Heater
line supply 12 Volt, DC
Amperage 2.52 A
Power 30 W
Power connector RCA
Power Cord Length Power Cord Length: 47 inches / 120 cm