The Celestron Dew Heater Ring for 5" SCTs is the ideal dew prevention solution for your Celestron telescope. This must-have accessory will improve your observing or imaging nights year-round. The Dew Heater Ring permanently mounts to your 5" Celestron Schmidt-Cassegrain optical tube, replacing your retaining ring so you'll never be caught without it. The installation process is quick and easy (follow the manual for instructions). The Dew Heater Ring replaces the retaining ring on your Schmidt corrector lens for efficient heating across the lens. The ring is constructed of lightweight, durable aluminium. Its rigid frame supports the cable circuity and the telescope's Schmidt corrector lens. Unlike other heating bands or strips that inefficiently heat the lens cell to warm the glass, the Celestron Dew Heater Ring heats the corrector glass directly, providing the most efficient transfer of heat to prevent dew formation. Simply plug the ring into an external 12V DC power source for consistent, continuous heat that will prevent dew from forming even under heavy dew conditions. The Dew Heater Ring features two storage clips to keep the power and thermistor jacks secure when not in use while accommodating the telescope's dust cover. The Dew Heater Ring also comes with a cable management clip that connects to the telescope's front cell. Corral the power and thermistor jack to prevent them from dangling and reduce unwanted pulls on the cable connection to the rings. Specifications Max power output 7 watts Power jack 12V DC barrel connector, 5.5mm x 2.1mm, tip positive Ring construction Aluminium Power jack extension cable 15 cm long, 12V DC, 5.5mm x 2.1mm barrel connector on one end, male RCA connector on other end, tip positive Thermistor jack 2.5mm audio jack, compatible with Celestron SmartHeat Dew Controllers Compatible scopes 5" Celestron Schmidt-Cassegrain Ring inner diameter 127.3 mm Ring outer diameter 146 mm Weight 46.3 g SKU CE-94055 Items included Dew heater ring for 5" Cable management clip Power jack extension cable Paper installation shield Note: 12V DC power supply not included.
