3 ms·

Great write up. I have been eyeing pms5003 earlier. Since there seems to be a fan in the sensor, I wonder is it noisy?

• _l0wh 4y ago
  Nope, it's hardly audible. The only way for my to tell if the fan is on or off is by looking at it to see if it's spinning.
• bryceacc 4y ago
  i have the pms7003 and can't hear a thing. It's maybe a half inch centrifugal fan