Astronomy enthusiasts usually shoot starry-sky at night in the wild, and the temperature difference at night is large. The telescope objective lens is prone to fogging similar to glasses. This product is used to heat and control the temperature to prevents fogging.
The dew heater-belt is an essential accessory to protect your optical tube from excessive moisture formation and condensation on the correction lens.
The cloth is covered with a foam insulation layer on the outside for maximum efficiency and performance.
Easy to use, three kinds of lengths for you to choose.
USB design for convenient charge.
Belt length: 250mm+180mm, 300mm+180mm, 400mm+180mm (optional)
Belt width: 50mm
Package size: 150 * 140 * 20mm / 5.9 * 5.5 * 0.8in
Package weight: 70g / 2.5ounce
1 * Heater-Belt