THE ADJUST KNOB CONTROLLED THE SPEED OF THE MAGNET. THE STIRRER SOUNDS LIKE IT WANTS TO WORK BUT DOESN'T. STIRRER WORKS BUT MAKES A GRINDING SOUND WHEN SPINNING. I DO NOT KNOW HOW TO CORRECTLY TEST THESE. SOME OF THE TOPS ARE TILTED.
This item is in the category "Business & Industrial\Healthcare, Lab & Dental\Medical & Lab Equipment, Devices\Lab Mixers, Shakers & Stirrers\Magnetic Stirrers & Hotplate Stirrers". The seller is "azmom*01" and is located in this country: US.
This item can be shipped worldwide.