ASToptics 12 cm Secondary Mirror Heating Band This 12 cm flexible heating strip is designed to help prevent dew on a telescope’s secondary mirror. The adhesive strip can be fitted to the secondary-mirror arrangement, with a 2 m lead for routing the connection to a dew-heater controller.
Manufacturer model: ASToptics 12 cm Secondary Mirror Heating Band · Specifications checked against manufacturer data on 2026-11-03
This 12 cm flexible heating strip is designed to help prevent dew on a telescope’s secondary mirror. The adhesive strip can be fitted to the secondary-mirror arrangement, with a 2 m lead for routing the connection to a dew-heater controller.
The dated ASToptics manual specifies 12 V RCA operation at 2.2 W, 0.18 A and 65.45 ohms for this exact heater. A pulsed controller allows the heat output to be regulated to the observing conditions.
The manufacturer lists compatibility with common Kendrick, Astrozap and Rigel dew-heater controllers. Plan the cable route around the secondary support so that the heater and lead do not obstruct the optical path or interfere with telescope movement.
ASToptics manufacturer documentation
Current electrical ratings selected from the dated 2025.02 Rev A manual. Older named-product webpage prose says 3.16 W; that value is superseded for this listing by the exact item’s manual table. Length, 2 m cable and adhesive construction follow the product page.
| Controller compatibility | Manufacturer lists Kendrick; Astrozap; Rigel |
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Data sheet
ASToptics 12 cm Secondary Mirror Heating Band This 12 cm flexible heating strip is designed to help prevent dew on a telescope’s secondary mirror. The adhesive strip can be fitted to the secondary-mirror arrangement, with a 2 m lead for routing the connection to a dew-heater controller.
Manufacturer model: ASToptics 12 cm Secondary Mirror Heating Band · Specifications checked against manufacturer data on 2026-11-03
