Pegasus Astro


Pegasus Astro Dewzap Controller


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DewZap: Your Ultimate Dual-Channel Dew Heater Control Solution

Experience seamless and effective dew prevention during your night-long astronomical observations with DewZap. This compact, yet robust, dual-channel dew heater controller is designed to be the perfect accessory for avid stargazers, ensuring that dew does not interrupt your exploration of the cosmos.

DewZap: Precision Control with Dual Digital Outputs

Equipped with two independent digital RCA outputs, DewZap allows for precise control over your dew prevention needs. Each output is easily adjustable via a user-friendly knob, providing you with the flexibility to manage dew heaters, telescope cooling fans, or even a lightbox for enhanced functionality.

Effortless Monitoring with LED Indicators

DewZap simplifies monitoring with its built-in LED indicators, located on the controller's front panel. These indicators offer immediate visual feedback on the power levels being supplied to each dew control channel, making it straightforward to adjust settings as needed for optimal performance.

Advanced Pulse Width Modulation (PWM) Technology

Incorporating cutting-edge digital electronics, DewZap supports full Pulse Width Modulation (PWM) for duty cycle control, allowing you to adjust the heater power from 0% to 100% with precision. This feature ensures efficient energy use while providing the exact amount of heat required to prevent dew formation.

High Capacity and Protection Features

With a total current capacity of 10 amps, distributed as 5 amps per channel, DewZap is equipped with powerful MOSFETs to ensure reliable performance without voltage drops. Additionally, the device is safeguarded against reverse polarity, enhancing its durability and user safety.

Technical Specifications:

  • Supply Voltage: 12V-13.8V DC Operation
  • Output: Matches input voltage in PWM Duty Cycle
  • Channels: Dual (2)
  • Power Outlets: 2 x RCA
  • Power Input Connector: 2.1mm Centre Positive Socket
  • Dimensions: 66 mm x 66 mm x 28 mm

What's Included:

  • DewZap Controller
  • Comprehensive Documentation & Software
  • Quick Installation Guide

DewZap stands as the definitive choice for astronomers seeking a reliable, efficient, and easy-to-use solution to dew prevention. Its advanced features and robust design ensure that your stargazing experiences remain clear and uninterrupted, no matter the conditions.


Dual Digital Outputs for Dew Control Strips

DewZap features two discrete digital RCA outputs, each of which can be individually controlled using the conveniently located knob on the side of the controller.

Furthermore, these outputs can serve multiple purposes, including the regulation of telescope fans or even powering a lightbox for added versatility.

LED Operation indicator

To provide at-a-glance information about the power intensity for each dew channel, DewZap incorporates dedicated LED indicator lights on the front faceplate, ensuring easy and intuitive monitoring of your dew control settings.

Pulse Width Modulation Duty Cycle Control

Controller was built with modern digital electronics and fully supports duty cycle % (PWM) control.

Zero to 100% heater control

Knobs can drive Pulse Width Modulation duty cycle from zero to 100%

Ten (10) amps of current capacity
(5 amps per channel)

Powerful MOSFETs on each output provide up to 5 Amps per channel.
There are no voltage drops there.

Reverse polarity protected.

The device is protected from reverse polarity.

Technical Specifications

Supply Voltage 12V-13.8V DC Operation
Output Same input voltage in Pulse Width Modulation Duty Cycle
Channels Dual (2)
Power Outlets 2 x RCA
Power Input Connector 2.1mm Centre Positive Socket
Dimensions 66 mm x 66 mm x 28 mm

In the Box

  • DewZap Controller

Pegasus Astro Dewzap Controller