What is the purpose of this Temperature/Humidity Sensor for my DewMaster?
This sensor provides your Pegasus Astro dew controller with the live, local atmospheric data (ambient temperature and relative humidity) it needs to calculate the current dew point. The controller then uses this information in its automatic modes to adjust the power going to your dew heaters, keeping your optics just above this temperature to prevent condensation from forming.
Is this sensor compatible with the original Pegasus Astro DewMaster?
Yes. This sensor is only compatible with the original DewMaster and replaces the sensor supplied with it.
Where should I place the Temperature/Humidity Sensor on my telescope rig?
For the most accurate readings of the ambient conditions, position the sensor away from any direct heat sources, such as your laptop exhaust, power bricks, or the dew heaters themselves. A good practice is to let it hang freely from the controller, ensuring it is measuring the air temperature around your telescope, not radiated heat from other equipment.
Can I use my DewMaster's automatic mode without this sensor?
No. The automatic dew control function of the DewMaster requires real-time data from this environmental sensor to calculate the dew point. Without it, you can only operate the dew heaters in manual mode by setting a fixed power percentage.
How does this sensor help save battery power during a night of imaging?
By providing accurate dew point data, the sensor allows the DewMaster to use its intelligent algorithm to apply only the necessary amount of power to the heaters. In manual mode, users often set the power too high "just in case," which drains field batteries unnecessarily. The automatic function ensures no energy is wasted, extending your imaging time.
My old DewMaster sensor is giving erratic readings. Is this the correct replacement?
Yes. If your current environmental sensor is damaged or giving incorrect readings, this is the Pegasus Astro replacement sensor for the original DewMaster.
