DewMaster 2 - Advanced Dew Heater Controller
The DewMaster 2 is the latest evolution of our acclaimed DewMaster, designed to give you unprecedented control over dew heater management. With the capacity to control five dew heaters independently through PWM (Pulse Width Modulation) adjustments, ensures DewMaster 2 optimal performance and efficiency.
DewMaster 2 Intuitive Interface and Digital Control
Featuring a 2.1-inch red OLED display and a fully digital interface, setting up and controlling DewMaster 2 is intuitive and fast. Monitor real-time power consumption (Amperes) and input voltage at a glance, keeping you informed for the duration of your sessions.
DewMaster 2 Environmental Monitoring for Optimal Conditions
An included external temperature and humidity sensor continuously monitors relative humidity, ambient temperature, and dew point. automatically adjusts dew heater power based on environmental data, keeping your optics free from moisture while conserving power.
DewMaster 2 Versatile Connectivity - WiFi & USB-C
Control DewMaster 2 via WiFi Hotspot and Client modes or connect through the USB-C port for a stable, fast, wired connection. Adjust settings remotely from your smartphone, tablet, or computer by accessing its user-friendly web-based dashboard.
DewMaster 2 Precision Power Management
Equipped with five high-capacity MOSFET transistors, DewMaster 2 supports up to 6 Amps per channel, delivering consistent power to each dew heater without voltage drop. The PWM control allows for fine-tuning of heater levels, reducing battery consumption while preventing dew formation.
DewMaster 2 Temperature Probes for Accurate Heat Control
With two temperature probes, each dew heater can be precisely controlled to maintain optics just above ambient temperature. This prevents dew without generating disruptive heat waves, preserving image quality for astrophotography or observing sessions.
DewMaster 2 Durable and Stylish Design
Crafted from 6061 aircraft-grade aluminium with a blue anodized finish, the DewMaster 2 combines ruggedness with style. The OLED display, protected by a red film, ensures your night vision remains unaffected, while its three-button interface allows easy adjustment of power and settings.
DewMaster 2 Power Distribution and Monitoring
DewMaster 2 includes two 12V pass-through DC outputs to power additional equipment. An integrated ammeter and input voltage meter offer real-time monitoring of power usage across all channels.
DewMaster 2 is ASCOM Alpaca & ASCOM 7 Compatible
Seamlessly integrate DewMaster 2 with ASCOM-compatible software like NINA for direct control over your dew heaters via Wi-Fi or USB-C, enhancing your imaging setup without additional drivers.
DewMaster 2 Included in the Box
- DewMaster 2 Controller
- Environmental Sensor (Temp & Humidity)
- 2.1 mm to 2.1 mm cable (1 meter)
DewMaster 2 Technical Specifications
- Supply Voltage: 12V-13.8V DC
- Channels: 5 RCA outputs
- Dimensions: 109mm x 74mm x 25mm
- Weight: 250 grams
Enhance your dew management with the DewMaster 2 smart, reliable control. Let DewMaster 2 handle the dew while you focus on capturing stunning celestial details.
DewMaster 2is the next evolution of our popular DewMaster, offering enhanced functionality for dew heater management. Connect and control up to five dew heaters independently through precise PWM duty cycle adjustments.
DewMaster 2 featuring USB-C connectivity and both WiFi Hotspot and Client modes, it ensures easy access to its web-based dashboard for remote monitoring and adjustments.
The device’s fully digital operation and a large 2.1 inch, high-contrast red OLED display make setup and control intuitive and fast. Instantly view real-time power consumption (in Amperes) and input voltage at a glance.
An included external temperature and humidity sensor provides continuous monitoring of relative humidity, ambient temperature, and dew point—essential for maintaining optimal conditions.
DewMaster2’s automated dew heater control activates in response to high humidity, keeping your optics free from moisture so you can focus on your work.
Additionally, two auxiliary inputs support extra temperature probes, allowing precise tracking of the temperature of your optical components for comprehensive environmental control.
DewMaster 2 -Five channels, Five RCA outputs for dew heaters
Equipped with five high-capacity MOSFET transistors, each supporting up to 6 Amps, the DewMaster2 delivers reliable, full-power output to each dew heater.
The MOSFET design ensures stable performance with virtually no voltage drop across outputs, guaranteeing efficient power delivery exactly where it’s needed.
DewMaster 2-Automatic Dew Control
PWM control will let you reduce your battery’s power consumption.
DewMaster’s intelligent auto-adjust feature takes the guesswork out of managing heater power levels. Simply assign auto dew to your output and the device will consult the environmental sensor to decide when to activate and finely tune each dew heater’s power level as conditions demand.
Temperature Probes
The DewMaster2 features two temperature probes that can be positioned near your optics for precise monitoring. Each probe can be assigned to a specific output, allowing the device to adjust heater power to maintain your optics just above the ambient temperature. This slight increase effectively prevents dew formation while preserving image quality, as it avoids generating heat waves that could interfere with your view.
DewMaster 2-Easy to Use
Just use the buttons and choose the desired output from the display.
Easily adjust the duty cycle from 0% to 100%.
Simple as that!
WiFi and USB-C controlled
The device provides flexible control through either USB-C or Wi-Fi. Use USB-C for a stable, fast, wired connection, ideal when low latency is needed. Alternatively, connect via Wi-Fi for a convenient, wireless experience, enabling remote access from smartphones, tablets, or computers.
Appearance
The device is housed in a durable 6061 aircraft-grade aluminium enclosure with a striking blue anodized finish, ensuring both ruggedness and an attractive appearance.
A 2.1 inch 128 x 64-pixel Organic LED (red film) screen is used for the device.
This display works lag-free, at very low temperatures. (-40 deg Celsius)
The red film on top of the display ensures that your night vision is going to be unaffected.
The three-button interface lets you easily configure key settings, adjust heater output power, and quickly fine-tune device options.
From left to right, the device layout includes the environmental sensor socket, a USB-C port for remote control, two temperature sensor probe inputs, a red LED indicator and the DC power input.
External Environment Sensor (included)
A high-resolution, calibrated temperature and relative humidity sensor cable provides precise environmental readings for your setup. This sensor seamlessly integrates with the dew heater outputs, allowing DewMaster2 to automatically adjust power levels based on current conditions (dewpoint).
Let DewMaster2 take control, activating your heating elements precisely when needed. Temperature, humidity, and dew point data are also displayed in real-time on the screen for easy monitoring.
Two 12V pass-through DC outputs and an Power meters.
The DewMaster2 offers two 12V DC outputs, allowing you to power additional equipment while minimizing cable clutter.
An integrated voltage and ampeter provides real-time monitoring of input voltage and total current consumption across the device, including the DC outputs and each dew heater channel.
This gives you clear oversight of power usage for efficient, streamlined management.
Control via Web Browser
Easily control DewMaster2 by connecting directly to its Wi-Fi hotspot.
Simply connect your mobile phone to the DewMaster2 hotspot, open your preferred web browser, and go to: dewmaster2.local
ASCOM Alpaca & ASCOM 7 Ready
DewMaster2 supports the ASCOM Alpaca Switches driver over Wi-Fi, allowing ASCOM Alpaca-compatible imaging software, such as NINA, to automatically detect the device on your local network.
This enables direct control of the heaters from your imaging software’s dashboard, eliminating the need for additional drivers.
Alternatively, our ASCOM7 drivers allows you to control the device directly from USB-C port.
Shoe Holder Attachment
DewMaster2 features a 3 x M3 mounting hole pattern on the bottom, compatible with our PEG-SHOE attachment, enabling secure mounting to a shoe holder for convenient and stable positioning.
Technical Specifications
| Supply Voltage | 12V-13.8V DC Operation |
| Output | Same input voltage in Pulse Width Modulation Duty Cycle |
| Channels | Five (5) |
| Power Outlets | 5 x RCA Connectors |
| Power Input Connector | 2.1mm Centre Positive Socket (requires optional PEG-PSU-2.1 or CIGLIGHT-ADAPTER21) |
| Dimensions | 109mm x 74mm x 25mm |
| Weight | 250 grams |
| Meters | Ampmeter and Input voltage meter. |
| Temperature Probes | 2 x 3.5mm sockets (probes not included in package) |
In the Box
- DewMaster 2 Controller
- Environmental Sensor (Temp and Humidity)
- 2.1 mm to 2.1 mm cable (1 meter length)