PegasusAstro DewMaster The original DewMaster controls five dew-heater channels independently using a rotary push knob and a red-film OLED display. PWM adjustment from 0 to 100% sets the heat level, while current and input-voltage metering show power consumption.
Manufacturer model: PegasusAstro DewMaster · Specifications checked against manufacturer data on 2026-11-03
The original DewMaster controls five dew-heater channels independently using a rotary push knob and a red-film OLED display. PWM adjustment from 0 to 100% sets the heat level, while current and input-voltage metering show power consumption.
The legacy manual recommends up to 5 A per RCA heater channel, although the hardware can reach 6 A. Two additional pass-through DC outputs are rated at 5 A each. The total input-current limit is 20 A; individual channel ratings cannot all be used simultaneously above that budget.
An external temperature and humidity sensor allows the controller to regulate heating automatically from the environmental readings. Temperature, humidity and dew point can be viewed on the display.
The original model uses a 2.5 mm centre-positive power socket, distinct from DewMaster2’s 2.1 mm input. Recommended supply is 12–13.8 V DC. The legacy manual specifies 110 × 75 × 25 mm, and the product page lists 250 g.
Pegasus Astro manufacturer documentation
Original DewMaster only. Manual recommends 5 A/channel and warns that 6 A can overheat MOSFETs; webpage hardware-maximum claim is not used as a continuous rating. Dimensions follow legacy manual, not rounded 109 × 74 webpage figures. Incorrect webpage package reference to a 2.1 mm input lead is not repeated.
| Generation | Original DewMaster; superseded by DewMaster2 |
|---|---|
| Recommended supply voltage | 12–13.8 V DC; legacy manual allows 11–14 V |
| Input connector | 2.5 mm centre-positive |
| Heater channels | 5 |
| Heater connections | Five RCA PWM outputs |
| Recommended heater current | Up to 5 A each per manual; 6 A hardware capability is not recommended continuously |
| Pass through outputs | Two unregulated DC outlets; 5 A each |
| Maximum total input current (A) | 20 |
| Manual control | Rotary push knob; 0–100% PWM |
| Display | Red-film 128 × 64 OLED |
| Automatic dew control | With external temperature/humidity sensor |
Data sheet
PegasusAstro DewMaster The original DewMaster controls five dew-heater channels independently using a rotary push knob and a red-film OLED display. PWM adjustment from 0 to 100% sets the heat level, while current and input-voltage metering show power consumption.
Manufacturer model: PegasusAstro DewMaster · Specifications checked against manufacturer data on 2026-11-03
