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DELTAUNO
Bewertet in Italien am 2. Februar 2025
ottima piastra riscaldante. permette di usare un agitatore interno magnetico e regolare la temperatura superiore ai 100 gradi
letmepicyou
Bewertet in den USA am2. Juli 2023
When I first ordered this, I knew I wanted a higher-spec magnetic stirrer than the one I had, which was admittedly pretty basic. But going in, I'll admit I didn't really expect the temperature probe and hot plate to be as accurate as it was. I figured if I was within 5 degrees of where I had it set, I was probably ok.Well, I filled a beaker with about 500ml of 2-pass RO water and set it all up to test it. Just to see for myself what kind of accuracy I could reasonably expect.Heating didn't take long, and went quite quickly. Stir power is pretty good, though I wish I could go below the low point of 50 rpm...10 rpm would be an ideal minimum, but...it's a petty gripe. The top speed of 1500 rpm is quite robust, to say the least.What really surprised me was the heating accuracy. I found the temperature that I measured with a separate high-quality digital thermometer and found it generally closer than half a degree. And it kept it there, very steadily, varying maybe a degree in total. Wow...very nice.So who's this for? Because certainly there are cheaper hot plate stirrers out there. You can pick one up for $50, $60 bucks. Why spend $200?If the type of work you do only requires you to "add heat", or "make it boil", or low-spec type work like that, you don't need a $200 hot plate / stirrer. This allows you to achieve PRECISE TEMPERATURES and maintain them. So if you need to heat an experiment to, say, 85c for 30 minutes, or whatever, this is where you want to be. Hot plate / stirrers with dial controls won't let you set 85c...or 37c...or 150c...you turn the knob until it's hot enough, and if it requires temperature monitoring, you have to have a temp probe figured into your glassware setup. This eliminates the necessity to maintain a separate temp probe on your material and having to fine-tune your setup as you go. If you set it at 95c it will hold 95c.It's not the cheapest solution, but the performance of this is pretty outstanding from my experience. This will be at home just about anywhere, from the home kitchen lab using it to make yeast starters to the chemist looking to run complex distillations.I can't recommend it more highly.
A. Silverstone
Bewertet in den USA am6. Juli 2021
When you want to mix something, you need to match your stir bar to size of the beaker or flask. This set ranges from 10 to 40 mm ensuring that you have the right size for whatever task is at hand. The magnets work well, and they spin smoothly. The PTFE/Teflon coating is very easy to clean and maintain.This is a great set for whatever lab uses you have!
Molly M.
Bewertet in den USA am23. Mai 2021
The JOANLAB Magnetic Stir Bar Set work really well in the magnetic plate mixer. We use this for our home learning lab, and also to thoroughly mix some paints and additives for art projects. The size variety is good for differently sized containers. I appreciate the case that did well for shipping and for storage between uses. They clean very easily. I would recommend this stir bar set for the quality and value. I hope my experience is useful and you kindly will click the button below.
WWalker
Bewertet in den USA am26. April 2021
Exactly as descibed and expected.
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