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. The product page specifies up to 6 A per heater channel; two additional DC outputs provide pass-through power. 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.
DewMaster2 manual and named-model webpage used. Display diagonal omitted because the manual contains both 2.1-inch and 2.3-inch wording. Optional individual temperature probes are not counted as supplied. No 30 A aggregate heater rating is inferred from five 6 A channel ratings.
Additional specifications
Supply voltage
12–13.8 V DC recommended
Input connector
2.1 mm centre-positive
Heater channels
5
Heater connectors
Five RCA PWM outputs
Maximum channel current (A)
6
Pass through outputs
Two 12 V DC outlets
Display
Red OLED, 128 × 64 pixels
Environment sensor
External temperature/humidity sensor included
Optional temperature inputs
Two 3.5 mm sockets; individual probes not included
Automatic control
Auto-dew; probe feedback for assigned heater channels
Device care
Not waterproof; keep clean and dry
75324
Datasheet
Besturing
USB-C USB2; Wi-Fi hotspot/client; browser dashboard; three push buttons
Afmetingen (mm)
109 × 74 × 25
Behuizing
6061 aluminium, blue/black anodised
Model
PegasusAstro DewMaster 2
Montage
Three M3 holes; PEG-SHOE compatible
Pakket
Controller; environmental sensor; 1 m 2.1 mm DC lead
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
