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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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  • Digital Dew Heater Four channel/four output control unit
    $109.00 - $109.00
    $109.00
    $109.00 - $109.00
    $109.00

    Thousand Oaks Digital Dew Heater Four Channel/Four Output Control Unit

    Thousand Oaks
    In Stock

    The lightweight Digital Dew Heater control unit measures 5" x 2.5" x 1". It comes with a permanently attached 12' (3.65m) power cord. The control u...

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    $109.00 - $109.00
    $109.00
    $109.00 - $109.00
    $109.00
  • Digital Dew Heater Strip for 3.1" to 4" telescopes
    $49.00 - $49.00
    $49.00
    $49.00 - $49.00
    $49.00

    Thousand Oaks Digital Dew Heater Strip for 3.1" to 4" Telescopes

    Thousand Oaks
    More on the way

    This 1" x 15" dew heater strip fits 3.1" to 4" refractors and catadioptric telescopes. The entire back of the heater strip is Velcro. There is a Ve...

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    $49.00 - $49.00
    $49.00
    $49.00 - $49.00
    $49.00
  • Digital Dew Heater Strip for 1.25" eyepieces and small finderscopes
    $39.00 - $39.00
    $39.00
    $39.00 - $39.00
    $39.00

    Thousand Oaks Digital Dew Heater Strip for 1.25" Eyepieces and Small Finderscopes

    Thousand Oaks
    In Stock

    This 1" x 4" dew heater strip fits 1.25" eyepieces and most finderscopes up to 50mm aperture. The entire back of the heater strip is Velcro. There ...

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    $39.00 - $39.00
    $39.00
    $39.00 - $39.00
    $39.00
  • $259.95 - $259.95
    $259.95
    $259.95 - $259.95
    $259.95

    Celestron Smart Dewheater Controller With Two Outputs 94035

    Celestron
    In Stock

    The Celestron Smart Dewheater Controller has some great attachment options and cool features to help you eliminate any dew issues. Work smarter, no...

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    $259.95 - $259.95
    $259.95
    $259.95 - $259.95
    $259.95
  • $53.95 - $53.95
    $53.95
    $53.95 - $53.95
    $53.95

    Celestron 8" Dew Heater Ring

    Celestron
    In Stock

    Celestron's innovative dew solution provides heat where you need it most, on the corrector. The Celestron Dew Heater Ring is the ideal dew preventi...

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    $53.95 - $53.95
    $53.95
    $53.95 - $53.95
    $53.95
  • $99.95 - $99.95
    $99.95
    $99.95 - $99.95
    $99.95

    Celestron 11" Dew Heater Ring

    Celestron
    In Stock

    Celestron has come up with a different approach to fight dew formation.  Instead of heating up the tube, they warm the corrector plate where dew fo...

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    $99.95 - $99.95
    $99.95
    $99.95 - $99.95
    $99.95
  • Digital Dew Heater Strip for 2" eyepieces and large finderscopes
    $39.00 - $39.00
    $39.00
    $39.00 - $39.00
    $39.00

    Thousand Oaks Digital Dew Heater Strip for 2" Eyepieces and Large Finderscopes

    Thousand Oaks
    More on the way

    This 1" x 6" dew heater strip fits 2" eyepieces and finderscopes over 50mm aperture. The entire back of the heater strip is Velcro. There is a Velc...

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    $39.00 - $39.00
    $39.00
    $39.00 - $39.00
    $39.00
  • Digital Dew Heater Strip for 7" to 8" telescopes
    $59.00 - $59.00
    $59.00
    $59.00 - $59.00
    $59.00

    Thousand Oaks Digital Dew Heater Strip for 7" to 8" Telescopes

    Thousand Oaks
    More on the way

    This 1" x 30" dew heater strip fits 7" to 8" catadioptric telescopes. The entire back of the heater strip is Velcro. There is a Velcro tab on an el...

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    $59.00 - $59.00
    $59.00
    $59.00 - $59.00
    $59.00
  • $439.95 - $439.95
    $439.95
    $439.95 - $439.95
    $439.95

    Celestron Smart Dewheater Controller With Four Outputs 94036

    Celestron
    In Stock

    The Celestron Smart Dewheater Controller has some great attachment options and cool features to help you eliminate any dew issues. Work smarter, no...

    View full details
    $439.95 - $439.95
    $439.95
    $439.95 - $439.95
    $439.95
  • $79.95 - $79.95
    $79.95
    $79.95 - $79.95
    $79.95

    Celestron 9.25" Dew Heater Ring

    Celestron
    More on the way

    Celestron's innovative dew solution provides heat where you need it most, on the corrector. The Celestron Dew Heater Ring is the ideal dew preventi...

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    $79.95 - $79.95
    $79.95
    $79.95 - $79.95
    $79.95
  • $159.95 - $159.95
    $159.95
    $159.95 - $159.95
    $159.95

    Celestron 14" Dew Heater Ring

    Celestron
    In Stock

    Celestron's innovative dew solution provides heat where you need it most, on the corrector. The Celestron Dew Heater Ring is the ideal dew preventi...

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    $159.95 - $159.95
    $159.95
    $159.95 - $159.95
    $159.95
  • $43.95 - $43.95
    $43.95
    $43.95 - $43.95
    $43.95

    Celestron 6" Dew Heater Ring

    Celestron
    In Stock

    Celestron's innovative dew solution provides heat where you need it most, on the corrector. The Celestron Dew Heater Ring is the ideal dew preventi...

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    $43.95 - $43.95
    $43.95
    $43.95 - $43.95
    $43.95
  • $16.95 - $16.95
    $16.95
    $16.95 - $16.95
    $16.95

    Celestron AUX Power Cable for Smart DewHeater Controllers

    Celestron
    More on the way

    Highlights Add this cable to use the Smart DewHeater Controllers’ AUX ports when using a third-party (i.e., non-Celestron) telescope mount Provid...

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    $16.95 - $16.95
    $16.95
    $16.95 - $16.95
    $16.95
  • $39.95 - $39.95
    $39.95
    $39.95 - $39.95
    $39.95

    Celestron 5" Dew Heater Ring

    Celestron
    In Stock

    Celestron's innovative dew solution provides heat where you need it most, on the corrector. The Celestron Dew Heater Ring is the ideal dew preventi...

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    $39.95 - $39.95
    $39.95
    $39.95 - $39.95
    $39.95

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