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12v DC adjustable dial for dew heaters with 5.5x2.1mm barrel plug. Useful on Celestron dew heater rings and Svbony dew heater straps. Caveman style, more heat or less heat? You be the judge! This will go in between the power supply and the dew heater. 5.5x2.1mm on both sides.
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🇺🇸 Ship from USA · On Agora since 2025
$15.00