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Pegasus DewMaster2 - 5 Channel Digital Dew Heater Controller
Pegasus DewMaster2 - 5 Channel Digital Dew Heater Controller

Pegasus DewMaster2 - 5 Channel Digital Dew Heater Controller

par Pegasus Astro
UGC PEG-DEWMSTR2
$242.90 - $242.90
$242.90
$242.90 - $242.90
$242.90
Égalisation de prix!
  • Controls five independent dew heater channels
  • Automated dew prevention using included environmental sensor
  • WiFi and USB-C connectivity for remote control
  • 2.1-inch red OLED display for at-a-glance status
  • Integrated ammeter and input voltage meter
1 en stock
Expédition internationale
  • Description
  • FAQ
  • Specifications
  • In the Box
  • Downloads
  • Warranty

  • Pegasus Astro DewMaster 2

    The Pegasus Astro DewMaster 2 is a fully digital, five-channel dew controller engineered for modern astrophotography. Operating on 12V-13.8V DC, it manages up to five dew heaters through its RCA power outlets, with a clear display showing real-time voltage and amperage. Housed in a compact 109mm x 74mm x 25mm anodized aluminum chassis, the entire unit weighs only 250 grams, providing advanced, automated dew control without adding significant weight to your imaging rig.

    5-Channel PWM Control via 5 RCA Outputs

    The DewMaster 2 is built around five high-capacity MOSFET-driven channels, each delivering up to 6 Amps of power through a dedicated RCA connector. This design ensures there is virtually no voltage drop, providing consistent and efficient power to your dew straps. You can manually adjust the Pulse Width Modulation (PWM) duty cycle for each channel from 0% to 100%, giving you precise control over power consumption and heating intensity directly from the unit's three-button interface or its web dashboard.

    Automated Dew Logic with Included Environmental Sensor

    Take the guesswork out of dew prevention with the DewMaster 2's intelligent automation. The controller includes an external environmental sensor that continuously measures ambient temperature and relative humidity to calculate the current dew point. By assigning a channel to "Auto-Dew," the device will automatically activate and adjust the heater's power level as conditions change, applying just enough heat to keep your optics clear without introducing image-degrading heat waves.

    • Included Sensor: The primary environmental sensor for automated dew point calculation is included in the box.
    • Optional Probes: For more granular control, two 3.5mm sockets support optional temperature probes that can be placed directly on your primary mirror or objective lens for precise temperature tracking.

    WiFi & USB-C Control with ASCOM Alpaca Support

    The DewMaster 2 integrates seamlessly into any modern setup with both wired and wireless control options. Connect via USB-C for a stable, high-speed connection, or use the built-in WiFi to access the controller's web dashboard from any phone, tablet, or PC. The device supports both Hotspot mode for direct connection in the field and Client mode to join your existing network.

    Full support for ASCOM Alpaca allows for native integration with popular imaging software like NINA. Your software can automatically detect the DewMaster 2 over WiFi and control all five heater outputs directly from its interface, centralizing your entire rig's operation without the need for extra drivers.

    Field-Ready Design: A 2.1-inch Red OLED in a Rugged Enclosure

    Designed for the rigors of fieldwork, the DewMaster 2 is housed in a robust, blue anodized 6061 aircraft-grade aluminum enclosure. The centerpiece is a large 2.1-inch, 128x64 pixel red OLED screen that provides crisp, high-contrast readouts of each channel's power level, total current draw in Amperes, and input voltage. The red film ensures your night vision is preserved, and the display remains lag-free even in freezing temperatures down to -40°C.

    DewMaster 2 vs. Original: A Leap in Connectivity and Control

    As the successor to the popular original DewMaster, the DewMaster 2 introduces a suite of critical upgrades for the modern imager. While the core function of reliable dew control remains, the user experience has been completely redesigned.

    • Modern Interface: The move to a large 2.1-inch red OLED screen from a simpler display provides far more information at a glance.
    • Wireless Control: The addition of WiFi and a web-based dashboard is the most significant upgrade, allowing for remote adjustments and monitoring from any smart device.
    • ASCOM Alpaca: Native Alpaca support enables driverless integration with modern imaging suites, simplifying software setup and creating a more unified control environment.
    • USB-C Port: The update to a modern USB-C port from older USB types ensures a more reliable and universal physical connection.

  • How do I control the DewMaster 2 without a computer?

    You can control the DewMaster 2 in two ways without a PC. You can use the three physical buttons on the unit to cycle through channels and adjust power levels directly. Alternatively, you can use your smartphone or tablet to connect to the DewMaster 2's built-in WiFi hotspot, open a web browser, and access the full digital dashboard for complete control.

    What is the difference between the included sensor and the optional probes for the DewMaster 2?

    The included Environmental Sensor measures ambient air temperature and humidity to calculate the dew point; this is what the "Auto-Dew" function uses to control heaters automatically. The two optional temperature probes (not included) plug into the 3.5mm sockets and are placed directly on your optics (like a corrector plate or primary mirror) to measure their glass temperature, allowing for even more precise heating.

    Can the DewMaster 2 handle the heavy dew on my 11" SCT's corrector plate?

    Yes. Each of the DewMaster 2's five channels can supply up to 6 Amps of current. This is more than enough power to drive high-wattage dew straps required for large corrector plates on Schmidt-Cassegrain telescopes (SCTs) or large refractor objectives, even in very high humidity conditions.

    Does the DewMaster 2 work with modern imaging software like NINA?

    Yes. The DewMaster 2 supports ASCOM Alpaca, which allows software like NINA or Sequence Generator Pro to automatically discover and control the device over your WiFi network without needing any special drivers. You can also connect via USB-C and use the standard ASCOM 7 driver if you prefer a wired connection.

    I power my rig from a 12V battery; how does the DewMaster 2 help manage power?

    The DewMaster 2 is ideal for field use. The Pulse Width Modulation (PWM) outputs are highly efficient, and the built-in ammeter shows you the total current your heaters are drawing in real-time. By using the "Auto-Dew" function, the controller only applies the necessary power as conditions change, significantly reducing overall battery consumption compared to leaving heaters on at full power all night.

    Is the red OLED display on the DewMaster 2 safe for night vision?

    Absolutely. The DewMaster 2 uses a high-quality OLED screen with a red film overlay. This design provides excellent contrast for readability while emitting pure red light that will not spoil your dark adaptation during an observing or imaging session.

  • Supply Voltage 12V-13.8V DC Operation
    Power Channels Five (5)
    Power Outlets 5 x RCA Connectors
    Output Power Same as input voltage in Pulse Width Modulation (PWM) Duty Cycle
    Power Input 2.1mm Centre Positive Socket (requires optional power supply)
    Onboard Meters Ampmeter and Input voltage meter
    Optional Probe Sockets 2 x 3.5mm sockets (probes not included)
    Dimensions 109mm x 74mm x 25mm
    Weight 250 grams

    • DewMaster 2 Controller

      × 1

    • Environmental Sensor (Temp and Humidity)

      × 1

    • 2.1 mm to 2.1 mm cable (1 meter length)

      × 1

  • Pegasus Astro 2-Year Warranty