Dew Heaters

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Accessories / Visual and Everything Else / Dew Heaters
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Dew Heaters
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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two channel/four output dew heater controller
 
Astrozap - two channel/four output dew heater controller 
Our Product #:  AZDHCB
Astrozap #: AZ-720

In Stock: Usually ships within one business day.
This Astrzap dual channel controller will independently control the power going to two dew heater strips per channel, for a total of four dew heaters . . .

[ More details . . . ] 

$105.00



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Digital Dew Heater strip for 10' to 12' telescopes
 
Thousand Oaks - Digital Dew Heater strip for 10" to 12" telescopes 
Our Product #:  DH1012
Thousand Oaks #: HB-45

In Stock: Usually ships within one business day.
This 1” x 45” dew heater strip fits 10” to 12” 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 . . .

[ More details . . . ] 
$69.00



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heater strap for 10' scopes
 
Astrozap - heater strap for 10" scopes 
Our Product #:  DH10AZ
Astrozap #: AZ 710

In Stock: Usually ships within one business day.
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) . . .

[ More details . . . ] 
$60.00



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heater strap for 11' scopes
 
Astrozap - heater strap for 11" scopes 
Our Product #:  DH11AZ
Astrozap #: AZ 711

In Stock: Usually ships within one business day.
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) . . .

[ More details . . . ] 
$65.00



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heater strap for 12' scopes
 
Astrozap - heater strap for 12" scopes 
Our Product #:  DH12AZ
Astrozap #: AZ 712

In Stock: Usually ships within one business day.
This 1.75” x 43” dew heater strip fits 12” telescopes having an outer barrel diameter of 12.7” to 14.3” (320mm to 365mm) . . .

[ More details . . . ] 
$65.00



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Digital Dew Heater strip for 14' to 16' telescopes
 
Thousand Oaks - Digital Dew Heater strip for 14" to 16" telescopes 
Our Product #:  DH1416
Thousand Oaks #: HB-50

In Stock: Usually ships within one business day.
This 1” x 50” dew heater strip fits 14” to 16” 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 . . .

[ More details . . . ] 
$89.00



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heater strap for 14' scopes
 
Astrozap - heater strap for 14" scopes 
Our Product #:  DH14AZ
Astrozap #: AZ 714

In Stock: Usually ships within one business day.
This 1.75” x 49” dew heater strip fits 14” telescopes having an outer barrel diameter of 14.6” to 16.2” (370mm to 410mm) . . .

[ More details . . . ] 
$80.00



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heater strap for 16' scopes
 
Astrozap - heater strap for 16" scopes 
Our Product #:  DH16AZ
Astrozap #: AZ 716

In Stock: Usually ships within one business day.
This 1.75” x 55” dew heater strip fits 16” telescopes having an outer barrel diameter of 16.5” to 18.2” (420mm to 460mm) . . .

[ More details . . . ] 
$85.00



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Digital Dew Heater strip for 3.1' to 4' telescopes
 
Thousand Oaks - Digital Dew Heater strip for 3.1" to 4" telescopes 
Our Product #:  DH34
Thousand Oaks #: HB-15

In Stock: Usually ships within one business day.
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 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 . . .

[ More details . . . ] 
$45.00



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heater strap for 3' scopes
 
Astrozap - heater strap for 3" scopes 
Our Product #:  DH3AZ
Astrozap #: AZ 703

In Stock: Usually ships within one business day.
This 1.75” x 13” dew heater strip fits telescopes having an outer barrel diameter of 3.5” to 5” (90mm to 130mm) . . .

[ More details . . . ] 
$40.00



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