PegasusAstro DewMaster 2 DewMaster2 controls five independent RCA dew-heater outputs through PWM, with a red 128 × 64 OLED and three-button front interface. USB-C and Wi-Fi hotspot/client operation add remote access through a browser or compatible imaging software.
Manufacturer model: PegasusAstro DewMaster 2 · Specifications checked against manufacturer data on 2026-11-03
DewMaster2 controls five independent RCA dew-heater outputs through PWM, with a red 128 × 64 OLED and three-button front interface. USB-C and Wi-Fi hotspot/client operation add remote access through a browser or compatible imaging software.
Environmental feedback
The included external temperature and humidity sensor provides environmental and dew-point readings for automatic heating. Two additional 3.5 mm inputs accept optional temperature probes, which can be assigned to heater outputs to regulate the temperature of optical components. These individual probes are not included.
Power and software
Recommended power is 12–13.8 V DC through a 2.1 mm centre-positive input. Native ASCOM Alpaca Switch support is available over Wi-Fi and ASCOM 7 control over USB.
Enclosure and package
The enclosure measures 109 × 74 × 25 mm and weighs 250 g. It uses 6061 aluminium and has three M3 mounting holes compatible with PEG-SHOE. The package includes the controller, environmental sensor and 1 m DC lead. Keep the electronics dry; the enclosure is not waterproof.
PegasusAstro DewMaster 2 DewMaster2 controls five independent RCA dew-heater outputs through PWM, with a red 128 × 64 OLED and three-button front interface. USB-C and Wi-Fi hotspot/client operation add remote access through a browser or compatible imaging software.
Manufacturer model: PegasusAstro DewMaster 2 · Specifications checked against manufacturer data on 2026-11-03
