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AstroZap 4-inch Dew Heater Strap and Controllers

SKU AZ-704
Original price $68.00 - Original price $68.00
Original price
$68.00 - $68.00
Current price $68.00
In stock

Ships To: United States & Canada 🇺🇸 🇨🇦

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Ships In: 1-3 Business Days

Estimated Delivery Time: 3-7 Business Days

Shipping & Returns

We offer free U.S. shipping to the lower 48 States - on most orders over $150 USD. Some limitations apply.

Shipping fees will apply on most orders shipping across Canada, with some exceptions.

We offer a 30 Day Return Policy on most of the products that we carry.

For full details on our Shipping & Returns Policy, please click here.


The vast majority of products that we sell, with a few exceptions, are covered under Warranty.

To view the Warranty details for each brand that we sell, including products that do not qualify for Warranty, please visit here.

AstroZap 4-inch Dew Heater Strap - AZ-704

Introducing the AstroZap 4-inch Dew Heater Strap.

When it comes to battling dew, the AstroZap Dew Heater Strap emerges as the ultimate solution for proactive dew prevention.

Handcrafted in the United States using cutting-edge materials, these heater straps ensure even heat distribution along their entire length.

AstroZap presents a comprehensive range of Dew Heater Straps designed to accommodate various popular sizes, including options tailored for eyepieces, finderscopes, and telescope objectives.

Moreover, AstroZap offers specialized heaters explicitly crafted for binoculars, Telrad, and Rigel finders.

The side of the strap facing your telescope is thoughtfully constructed with a material that safeguards your telescope's finish, keeping it free from any unwanted marks or scratches.

Thanks to the adjustable Velcro attachment, you can achieve a secure and efficient fit, delivering precisely the right amount of heat to maintain the objective above the dew point.

For peak performance, pair the Dew Heater Strap with the AstroZap Dual Channel Dew Controller, which grants precise control over dew prevention.

It's worth noting that Dew Heater Straps and Controllers are available separately, giving you the flexibility to tailor your dew-fighting setup to meet your specific requirements.



  • Cutting-Edge Dew Prevention: The Dew Heater Strap is expertly engineered to actively combat the formation of dew on your telescope's optics, ensuring uninterrupted and crystal-clear observations.
  • Crafted with American Excellence: Made in the USA using advanced materials, it guarantees durability, reliability, and exceptional dew-fighting performance.
  • Adaptable Sizing: Available in a variety of sizes to accommodate an extensive range of optical components, including eyepieces, finderscopes, and telescope objectives, offering a versatile solution for your specific setup.
  • Specialized Heaters: AstroZap offers specialized heaters designed specifically for binoculars, Telrad, and Rigel finders, expanding compatibility with a wider range of equipment.
  • Preserving Telescope Elegance: The side of the strap that faces your telescope is constructed with materials that protect your telescope's finish, preventing any potential damage or scratching during use.


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