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Dew Heaters & Controllers

Moisture condensing on the eye lens of your eyepiece or on the front lens of your telescope (in other words, dew) can cut short an evening's observing or ruin a long exposure deep space photograph if it forms during the exposure. If enough moisture condenses, it also has the potential of getting into the optical tube or eyepiece and causing damage.

Dew heaters are low wattage 12 Volt DC electrical heater strips that wrap around the objective lens of the telescope (as well as the finderscope and eyepieces, if desired). These warm the optics above the dew point to prevent the formation of dew. Unlike dew shields, dew heaters don't merely slow the formation of dew, they prevent its formation entirely.

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  • Celestron Smart DewHeater 2X Controller – front view showing two RCA dew ports
    $269.95 - $269.95
    $269.95
    $269.95 - $269.95
    $269.95

    Celestron Smart Dewheater Controller With Two Outputs 94035

    Celestron
    In Stock

    Celestron Smart DewHeater & Power Controller 2X Intelligent dew protection and power distribution for streamlined telescope setups Dew doesn’t ...

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    $269.95 - $269.95
    $269.95
    $269.95 - $269.95
    $269.95
  • Celestron 8-inch Dew Heater Ring – front view with aluminum housing and cable clips
    $55.95 - $55.95
    $55.95
    $55.95 - $55.95
    $55.95

    Celestron 8" Dew Heater Ring

    Celestron
    In Stock

    Celestron 8-inch Dew Heater Ring (Part #94051) Direct-heating dew protection for 8" SCT, EdgeHD, and RASA telescopes Your 8" Celestron SCT is the u...

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    $55.95 - $55.95
    $55.95
    $55.95 - $55.95
    $55.95
  • Celestron 11″ Dew Heater Ring – Direct Heating for SCT, EdgeHD & RASA | Astronomics
    $104.95 - $104.95
    $104.95
    $104.95 - $104.95
    $104.95

    Celestron 11" Dew Heater Ring

    Celestron
    In Stock

    Celestron 11-inch Dew Heater Ring (Part #94053) Direct-glass heating for 11" SCT, EdgeHD, and RASA optical tubes When you own a premium 11" Celestr...

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    $104.95 - $104.95
    $104.95
    $104.95 - $104.95
    $104.95
  • Celestron 9.25-inch Dew Heater Ring – front view showing cable clips and aluminum frame
    $81.95 - $81.95
    $81.95
    $81.95 - $81.95
    $81.95

    Celestron 9.25" Dew Heater Ring

    Celestron
    In Stock

    Celestron 9.25-inch Dew Heater Ring (Part #94052) Permanent, efficient dew control—right at the glass—for your 9.25" SCT or EdgeHD The 9.25" Schmid...

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    $81.95 - $81.95
    $81.95
    $81.95 - $81.95
    $81.95
  • Celestron Smart DewHeater and Power Controller 4X – front view showing ports and bridge
    $449.95 - $449.95
    $449.95
    $449.95 - $449.95
    $449.95

    Celestron Smart Dewheater Controller With Four Outputs 94036

    Celestron
    In Stock

    Celestron Smart DewHeater & Power Controller 4X Four-port, microprocessor-driven dew control and power hub for the modern observer Dew is an ol...

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    $449.95 - $449.95
    $449.95
    $449.95 - $449.95
    $449.95
  • Celestron, Dew Heater Ring, 6-inch SCT, Dew Control, Thermistor, Smart DewHeater Compatible, Corrector Plate Heater, 94050, Telescope Accessory
    $45.95 - $45.95
    $45.95
    $45.95 - $45.95
    $45.95

    Celestron 6" Dew Heater Ring

    Celestron
    In Stock

    Celestron 6-inch Dew Heater Ring (Part #94050) Compact, permanent dew protection for your 6″ SCT A 6-inch Schmidt-Cassegrain is the very definition...

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    $45.95 - $45.95
    $45.95
    $45.95 - $45.95
    $45.95
  • Celestron 14-inch Dew Heater Ring – front view showing integrated power and sensor jacks
    $164.95 - $164.95
    $164.95
    $164.95 - $164.95
    $164.95

    Celestron 14" Dew Heater Ring

    Celestron
    In Stock

    Celestron 14-inch Dew Heater Ring (Part # 94054) Direct-contact, thermistor-guided dew prevention for big-aperture SCTs, EdgeHDs, and RASA 14 Ownin...

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    $164.95 - $164.95
    $164.95
    $164.95 - $164.95
    $164.95
  • Celestron AUX Power Cable for Smart DewHeater Controllers with coiled design and 5.5mm barrel and RJ-25 connectors
    $17.95 - $17.95
    $17.95
    $17.95 - $17.95
    $17.95

    Celestron AUX Power Cable for Smart DewHeater Controllers

    Celestron
    In Stock

    Celestron AUX Power Cable for Smart DewHeater Controllers Unlock Full AUX Port Functionality—Even with Non-Celestron Mounts If you’re using a Celes...

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    $17.95 - $17.95
    $17.95
    $17.95 - $17.95
    $17.95
  • Celestron 5-inch Dew Heater Ring – front view with integrated cable clips
    $42.95 - $42.95
    $42.95
    $42.95 - $42.95
    $42.95

    Celestron 5" Dew Heater Ring

    Celestron
    In Stock

    Celestron 5-inch Dew Heater Ring (Part #94055) Low-profile, high-efficiency dew control for Celestron 5″ Schmidt-Cassegrain telescopes If you rely ...

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    $42.95 - $42.95
    $42.95
    $42.95 - $42.95
    $42.95

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