Astronomy Plus USB Dew Heater

A dew heater strip is an essential accessory in astronomy and astrophotography, preventing moisture buildup on telescope optics during humid or cold nights. This model is powered via USB-A and features an elestic velcro attachment for easy installation around the optical tube.

The faux leather exterior provides durability and style, while a built-in gradation disc allows control over the heat output to match varying environmental conditions. By maintaining a clear lens or corrector plate, it ensures uninterrupted viewing and imaging sessions.

The heating element is available in three length :

• 250 mm, suitable for 80 mm telescope aperture
• 300 mm, suitable for 100 mm telescope aperture
• 400 mm, suitable for 130 mm telescope aperture

Technical Specification

Heat Controller Included

In the Box

• Dew heater strip, in selected length.
• USB adapter with heat control.

Warranty & Manual