CELESTRON anti-dew heating ring for 8" SC pipes

CELESTRON dew-ring heater for SC 8" tubes

The dew ring heater Celestron is the ideal solution to prevent dew on your Schmidt-Cassegrain telescope. This must-have accessory will enhance your observing or imaging nights all year round. The anti-dew heating ring mounts permanently on your Schmidt-Cassegrain 8" Celestron optical tube, replacing your retaining ring, so you'll never be caught without it. The installation process is quick and easy (follow the instructions in the manual). And it can be left in place permanently.

how does it work?

The anti-dew heating ring replaces the plastic retaining ring on your Schmidt corrector plate for effective heating across the entire lens. The ring is constructed of lightweight, durable aluminum. Its rigid frame supports the heating circuit and the telescope's Schmidt plate, thus maintaining the functionality of the standard part in that location. Unlike other heating tapes that heat the lens cell inefficiently to warm the glass, the anti-dew heating ring Celestron heats the corrector glass directly, providing the most efficient heat transfer to prevent dew formation.

Simply connect the ring to an external 12V DC power supply for constant, continuous heat that will prevent dew formation even in heavy dew conditions. The anti-dew heating ring features two storage clips to keep the power and thermistor plugs secure when not in use, while fitting perfectly with the aluminum dew shield also from CELESTRON.

The anti-dew heating ring also comes with a cable management clip that attaches to the front cell of the telescope. It wraps around the socket and thermistor to prevent dangling and reduce unwanted tugging when connecting the cable to the rings.

Anti-roc heating ring comes complete with:

• Anti-roc heating ring
• Cable management clip
• Socket extension cable
• Paper protector for installation

Improve your setup

To achieve the highest level of dew prevention and maximize energy efficiency, we strongly recommend pairing the anti-spray heating ring with a CELESTRON SMART DEWHEATER controller(sold separately). The controller uses the ring's built-in thermistor and its internal environmental sensor to provide just the right amount of heat to the corrector to prevent dew based on ambient temperature, ambient humidity and Schmidt plate temperature, which can dramatically reduce the ring's power consumption, greatly increasing battery life. The ring also includes an extension cable to connect the ring directly to one of the controllers' heater output ports, or to the heater output port of a third-party controller (Note: the thermistor built into the ring is only compatible with Celestron Smart DewHeater controllers).

We also recommend adding an aluminum dew shield to your setup. Although not mandatory, a sunshade will reduce the amount of energy the DewHeater ring needs to keep the optics dry.

Summary of general features:

• The heater ring provides the most effective heating directly to the corrector lens to prevent dew formation
• Permanently mounts to your existing telescope tube for seamless permanent viewing - plus, you'll never forget to take it with you
• Built-in thermistor continuously monitors the temperature of the corrector lens when used with Celestron Smart DewHeater controllers
• Rigid, lightweight and durable aluminum construction
• Included storage clip and cable management clip keep your cables organized

CELESTRON anti-spray heating ring for 8" SC tubes