For PWM frequency: 25KHZ (plus or minus 1KHZ). For PWM signal amplitude: 5V (no load). Circuit self-consumption: less than 40mA (tested at 12V). Size: Circuit board 50×19×11 mm (excluding interface). User-friendly Display: The digital display shows both temperature and fan speed, making it easy to monitor performance at a glance, allowing users to quickly assess their cooling needs.
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