tinosaurier@feddit.org to Technology@lemmy.worldEnglish · 3 days agoTeardown Of A Scam Ultrasonic Cleanerhackaday.comexternal-linkmessage-square23fedilinkarrow-up1212arrow-down14
arrow-up1208arrow-down1external-linkTeardown Of A Scam Ultrasonic Cleanerhackaday.comtinosaurier@feddit.org to Technology@lemmy.worldEnglish · 3 days agomessage-square23fedilink
minus-squareshiiiiiiiiiiiiiiiiit@sh.itjust.workslinkfedilinkEnglisharrow-up36·3 days agoI 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.