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Dew Heaters For Telescopes

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 9.25" DEW HEATER RING

$79.95

Celestron's innovative dew solution provides heat where you need it most, on the corrector.
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Celestron 11" DEW HEATER RING

$99.95

Celestron's innovative dew solution provides heat where you need it most, on the corrector.
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Celestron 14" DEW HEATER RING

$159.95

Celestron's innovative dew solution provides heat where you need it most, on the corrector.
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Celestron SMART DEWHEATER CONTROLLER with two outputs

$259.95

The Celestron Smart Dewheater Controller has some great attachment options and cool features to help you eliminate any dew issues.
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Celestron SMART DEWHEATER CONTROLLER with four outputs

$439.95

The Celestron Smart Dewheater Controller has some great attachment options and cool features to help you eliminate any dew issues.
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Heater strap for 11" scopes

$60.00

This 1.75" x 40" dew heater strip fits 11" telescopes having an outer barrel diameter of 11.8" to 13.4" (300mm to 340mm) . . .
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Heater strap for 10" scopes

$59.50

This 1.75" x 38" dew heater strip fits 10" telescopes having an outer barrel diameter of 11.3" to 12.7" (290mm to 320mm) . . .
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Heater strap for 9.25" scopes

$57.00

This 1.75" x 33" dew heater strip fits 9¼" telescopes and other scopes having an outer barrel diameter of 9.6" to 11.3" (240mm to 290mm) . . .
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Digital Dew Heater Strip for 5" telescopes

$49.00

This 1" x 20" dew heater strip fits 5" refractors and catadioptric telescopes. The entire back of the heater strip is Velcro. There is a Velcro tab on an elastic strap on one end of the heater strip. When the Velcro tab on its strap is pressed onto the Velcro back of the heater, the elasticity of the strap holds the heater in place on the scope objective . . .
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Digital Dew Heater Strip for 7" to 8" telescopes

$55.00

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 elastic strap on one end of the heater strip. When the Velcro tab on its strap is pressed onto the Velcro back of the heater, the elasticity of the strap holds the heater in place on the scope objective . . .