Ultrasonic Cleaning Machine 3L, Jewelry Sonic Cleaner with Digital Timer and Heater for Watch Glasses Tooth Small Parts Cleaning

So far, so good. Using it to clean watches. It is powerful & creates a very even wave in the fluid. The heater works fantastic. The only bad part is the basket, but just buy your own mesh containers to use, as they are finer & hold parts better. I use solvents, so I put them in Mason jars & submerge into water which I place in the unit. At work we use a soap solution directly in the unit itself. They get a ton of use & still work great. So I'm pretty happy with it, & am glad they don't cost $300 for a quality unit anymore.

this thing is 10 kinds of bad azz. I mean, I didn't expect it to work so well. Had I known, I would have purchased years ago. It is not very noisy at all. It does make a humming/buzzing noise, but it is not very bad at all. Just add a pint of pine sol and finish off with water. You will be amazed how well it cleans.

TL;DR -- Slightly over-priced for what you get and it does work, but the transducer does not produce the rated power.I bought the 40A model, which purports to have a 200 watt tank heater and a 240 watt transducer. I put an ammeter on it to test this, and while the heater makes the rated 200 watts (120V @ ~1.9 amps), the transducer only makes about 200 watts (120V @ 1.75 amps). Curiously, this would match the specs for the 30A unit (although the label on this one does say 40A).The usable tank volume is approximately 11.5" x 9.25" x 4.75" (WHD), which is 505 cubic inches, or 2.2 gallons (~8.3 liters). I'm assuming you're not supposed to fill it past the ridge that's about 1" down from the top. The entire tank volume might be 2.6 gallons (10 liters), but the usable tank volume is not. You're not supposed to set objects on the bottom of the tank, so the included basket further reduces the usable volume of the tank.The 200 watt heater took over 30 minutes to raise the temperature from 20C to 40C. I didn't do the math to determine how long it should take to raise 2 gallons by 20C degrees, but when you're waiting for it, it's slow. Glacially slow...The controls work OK, but the front panel of the unit is thin sheet metal, and flexes quite a bit as you're pressing buttons. The manual is what you'd expect from a typical Chinese manual; hard to read and lacking clarity. For instance, if you don't have enough water in the tank, the temperature blinks '01' and although the heater indicator is on, it's not actually heating. You do need to fill the tank a little more than 3/4 full before it decides it has enough fluid to be happy.When the unit is first turned on, the timer defaults to 5:00 minutes. Once the cycle has completed, it resets back to 0:00. This is a little annoying if you want to run a number of cleaning cycles. I had to keep resetting it to 15 minutes before starting each cycle.I have no way to measure the transducer frequency, so I'll have to trust that it's indeed 40KHz. The unit is not excessively noisy, but you don't want to run it in your office. It produces a moderately loud buzzing, which is the tank resonating at some frequency.My overall impression is that I would have found it to be a much better value at $150 than $200. It does clean things; I had a bunch of fairly dirty sockets from a socket wrench set, and it cleaned them up. I used AIM Purple Dragon cleaner, and they came out pretty well. I also cleaned a few bolts from an engine that were greasy and had some rust, and it did OK on those. It's good enough to not return it, but it's no value deal. That being said, I didn't see any other units on Amazon that seemed any better.

t worked great on some real dirty automotive electronic components and two carburetors so far. I used 25% Smart & Final Degreaser and water. Both carburetors took 30 minutes each. The electronic parts took 1 hour each load, but that also included some greasy alternator brackets, pulleys, distributor housing and shafts and lots of nuts and bolts. Also the water and soap was cold when it started out. When I did the carburetors I used Hot tap water to give it a head start. It's not really to noisy. I used it next to the sink in our laundry room.

I cleaned some fuel injectors with this and a few gun parts. It’s a decent size for its price, I keep finding more things to clean with it. It works well

Unit looks nice, but doesn't work.

This is my first ultra sonic cleaner for use at home. I’m very pleased with how it works. I’ve cleaned jewelry and small parts in my shop. Also it’s quiet.

The full port ball valve for the drain is a 3/8", and the MNPT x Hose barb was 1/4" plastic fitting; useless! A trip to the hardware store was required for a brass 3/8" MNTP x 9/16" hose barb and new 9/16" hose. Quick fix but very disappointing. The actual temperature DOES NOT provide the actual temperature of the solution. The function and cleaning action was as expected and acceptable. The Manual with the unit is completely useless as it obviously translated from Chinese as many on the statements are to protect manufacturer from warranty issues. Overall another example to spend a little more and buy American.

Gereat value for money

Had high hopes for this product due to the number of glowing reviews.Received in excellent condition. No damage on packaging, unit and parts all appear to be well made and fit together perfectly.Decided to do a quick test and tried to start the machine with a couple of metal parts and no heating - just tap water.Proceeded to trip my house's circuit breaker after 1 minute, and would no longer turn on afterwards despite fuses and cable still being intact and power switch still lighting up.Returned.