ZWO Desiccant Tablets for ASI Cooled Cameras
A packet of desiccant tablets comes standard with all ZWO cooled cameras, but when you run low, you can load up on them by purchasing this packet. Keep these four desiccant tablets inside the sensor chamber of your camera to prevent dew or frost formation. These pellets should be replaced at the first sign of moisture on the inside of your sensor. Scan through the attached PDF in the Files tab to see an image of the inside of the sensor chamber, and the location of the desiccant tablets, as well as basic instructions for replacement.