Everyone knows that ultrasonic cleaners are great, but not every device that’s marketed as an ultrasonic cleaner is necessarily such a device. In a recent video on the Cheap & Cheerful Yo…
I ordered one of these off Ali Express. An oscilloscope app showed it was about 40Hz vibration from the weight on the motor, far far from being ultrasonic. Got a refund, it ended up in the recycling.
I ordered one of these off Ali Express. An oscilloscope app showed it was about 40Hz vibration from the weight on the motor, far far from being ultrasonic. Got a refund, it ended up in the recycling.