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.
Heater and auxiliary power
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.
Automatic dew control
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.
Legacy model connections
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.
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.
Additional specifications
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Original DewMaster; superseded by DewMaster2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
61849
Datasheet
Afmetingen (mm)
110 × 75 × 25
Model
PegasusAstro DewMaster
Bedrijfstemperatuur
−40 to +70 °C
Ompolingsbeveiliging
Yes
Sensor
RJ12; −45 to +125 °C and 10–99% RH; typical ±0.2 °C, ±2% RH
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
