Skip to content
PrimaLuceLab Dew Heater for 120mm Diameter Telescopes

PrimaLuceLab Dew Heater for 120mm Diameter Telescopes

by PrimaLuceLab
SKU PLL-PLLFAS120
CA$91.00 - CA$91.00
CA$91.00
CA$91.00 - CA$91.00
CA$91.00
Price Match Policy!
  • Designed for 120mm Diameter Telescopes
  • 12V DC Power Input with RCA Connector
  • Velcro and Elastic Band for Secure Fit
  • Integrates with PrimaLuceLab EAGLE
  • Prevents Dew on Refractors and SCTs
2 in stock
Qualifies for FREE Shipping in Canada on orders over $500.
  • Description
  • FAQ
  • Specifications
  • In the Box
  • Warranty

  • PrimaLuceLab Dew Heater for 120mm Diameter Telescopes

    The PrimaLuceLab Dew Heater is designed specifically for 120mm diameter telescopes, preventing moisture from condensing on your objective lens or corrector plate. It operates on a standard 12V DC input, integrating seamlessly with common field power supplies and the PrimaLuceLab EAGLE ecosystem to keep your optics clear all night.

    Dew Prevention for 120mm Refractors and SCTs

    Dew is a session-ending problem, especially for sealed optical tubes like refractors and Schmidt-Cassegrains where the front element is exposed to the night air. This heater band wraps around any optical tube around 120mm in diameter, using a strong Velcro closure and elastic material to ensure a snug, continuous fit. This design delivers consistent, low-level heat directly to the tube, keeping the glass temperature just above the dew point without introducing tube currents.

    12V Power and EAGLE Ecosystem Integration

    Designed for the PrimaLuceLab ecosystem, this dew heater connects directly to one of the power ports on an EAGLE computer, allowing for integrated control. For setups without an EAGLE, it can be powered by any external 12V DC source using its standard RCA-type connector. This flexibility ensures you can keep your optics clear regardless of your field power setup.

  • How does the PrimaLuceLab Dew Heater for 120mm Telescopes attach to the tube?

    It uses a combination of strong Velcro and an elastic band. This allows you to wrap it securely around your 120mm optical tube for a snug fit that ensures even heat distribution across the telescope body.

    I have a 120mm ED refractor. Will this dew heater work with it?

    Yes, absolutely. This dew heater is specifically designed for 120mm diameter telescopes and is ideal for refractors and other sealed-tube designs like Schmidt-Cassegrains, which are particularly susceptible to dewing up on the front objective or corrector plate.

    What kind of power supply do I need for the PrimaLuceLab Dew Heater?

    You need a 12V DC power source. The heater comes with a standard RCA-type power connector, making it compatible with most field batteries and astronomy power supplies. It is also designed to plug directly into a PrimaLuceLab EAGLE unit for integrated power management.

    Can I control the heat output of this PrimaLuceLab Dew Heater with my Celestron SCT setup?

    This dew heater provides constant heat when connected directly to a standard 12V source. For variable control, you would need to connect it to a dedicated dew controller or the PrimaLuceLab EAGLE, which can manage the power output to its ports. The heater itself does not have a built-in controller.

    Is the PrimaLuceLab Dew Heater only for 120mm telescopes?

    It is optimized for 120mm diameter tubes. The elastic nature of the band provides some flexibility for a secure fit on tubes very close to this size, but it is engineered to provide the most effective and uniform heating for a 120mm optical tube.

    Why do I need a dew heater for my telescope?

    As your telescope optics cool down during the night, they can reach the dew point, causing moisture from the air to condense on the lens or corrector plate. This condensation acts like a fog, severely degrading image quality and ending your observing or imaging session. A dew heater gently warms the optics to keep them just above the dew point, ensuring a clear view all night long.

  • EAN Code 8059020772987

    • Dew Heater for 120mm Diameter Telescopes

      × 1

  • PrimaLuceLab 1-Year Warranty