Nights are not always as dry and clear as you would like. Optical surfaces will often fog up at night. And once your optics have fogged up, then your observing is over for the night. This can be avoided. Tydeux heating strips keep off the dew and help you super clear observing - all night long.

Why do your optics fog-up? A fine mist of water droplets forms on the spectacles as the warm air condenses onto the cold glass surfaces. Exactly the same happens on the lenses of your telescope optics. As your optics cool down, water condenses onto the surface. Then its time to free your view!

Highly practical! At the beginning of your observing session, simply wrap the heating strip around the OTA or your eyepiece. The strip fits like a glove and can be fixed in place using the adhesive strap fastener. After you are finished observing, just stow it back in the eyepiece case.

Simply connect to a suitable power source using the lead with DC plug supplied. Heating strip effectively keeps the temperature just a few degrees above the ambient temperature, just enough to ensure that dew no longer has a chance to form. It also uses minimal energy, hence sparing your battery.