Celestron Smart DewHeater Controller 2X with 2 Ports - 94035 Dual Alt-Azimuth/Equatorial Mounts Rather than use set screws

Rather than use set screws to hold the eyepiece in place

Protects your CEM40 Head for storage and transport

This 8" OTA package also includes a padded

Two-Star Alignment Database: 25 user defined objects

Celestron Smart DewHeater Controller 2X with 2 Ports - 94035 Dual Alt-Azimuth/Equatorial Mounts Rather than use set screwsThe Celestron Smart DewHeater and Controller comes with two ports to control two dew heaters at once. You can use one port to heat your optical tube while the other warms a second optical tube, a guide scope, an eyepiece, or another accessory. The controller gathers and analyzes information in real time to warm your optics just enough to prevent dew. The controller also features an additional 12V DC output port so you can power another 12V DC device,