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Toasty Tots
Reviewed in the United States on November 13, 2024
I liked it while I had it (bought it in march this year), but 300C or even 280C will kill this thing if you're using it heavily, like running it at 280 for 3 days. It does give you an error warning, but soon the display and speaker died. I'm not sure why advertise it can hit 300C if you can't actively use that setting. I tried to examine the pcb's inside hoping I could fix it but I'm only a chemist and not an electrical engineer. If there's replacement pcb's for sale by the manufacture I might give it 4 stars for repair-ability. Being able to easily fix your work horse should be the gold standard of hot plates under heavy use.It still surprises me this hot plate took 300ml-500ml of boiling Caro's acid foam over and survived, yet 3 days at 280 is what seals it fate.
JR
Reviewed in the United States on October 8, 2024
So far, so good.
Caitie
Reviewed in the United States on October 29, 2024
First time I tried to heat up water with the thing it developed massive lumps on the heated plate. It is essentially useless now, as nothing will sit flat on the plate, hence very poor heat transfer. If you buy this, PUT IT THROUGH ITS PACES BEFORE THE RETURN WINDOW CLOSES, instead of 5 days after like me.
Joeseph
Reviewed in Canada on October 23, 2024
I used the machine only 3-4 times and after that the machine stopped powering on and I tried another power wire that fitted and it worked but the original wire has stopped working only after 3-4 times and I'm not sure who to contact to get a new one
Pinkamena
Reviewed in the United States on April 8, 2024
Does everything a hot plate should do, but why does the control knob change apply an acceleration to the increments when the knob moves faster? Every time I turn a knob I drastically overshoot the value I'm going for due to this weird acceleration. I have to dial in the rpm and temperature values extremely slowly so the acceleration doesn't kick in and send the value flying. If I want to increment the values faster I just turn the knob faster, that's how knobs work. No need for digital acceleration on top of that.
c3h8
Reviewed in the United States on April 28, 2024
This unit has a external temperature probe, but seemingly no close-loop temperature regulation. I have, working with 50 mL fluid quantities, configured the temperature set-point, attached the probe and watched the hotplate plow past the target. I think the issue is more than specific heat 'inertia' as the heater did not cut out under a severe temperature overshoot.
AZ Shopper
Reviewed in the United States on June 23, 2023
The media could not be loaded.
Pen Name
Reviewed in the United States on June 2, 2023
See attached photos, I’ve been able to get it up to 538w, heats up quick and is easy to use. Spend the extra money from a generic sh-3 or sh-4 and and get this, definitely don’t get a generic sh-2. I have them all. This one has a nice lcd screen which shows you digitally the exact rpm the magnetic stir bar is spinning, exact temps according to the probe and hot plate, and many other little notifications. With generic models, you’ll see in reviews that the power adjustment knob isn’t very intuitive so it’s either on full blast hot or not heating even though you’re at medium settings, this one keeps it plain to see on the lcd screen. Other modes will need you to invest in a “Kill A Watt” meter plugged in to the outlet in order for you to understand how many watts of heat you’re adding. You can see I have one setup in my pics and it is using a fair deal of power to heat my experiment as intended.
Joel
Reviewed in the United States on May 14, 2023
The coating on the tool has proved impervious to hydrochloric and sulfuric and other acids and bases. It is a solid tool that is holding up well.It might be worth knowing that one chemistry lab studied the value of stirring faster or slower. They found almost no benefit in stirring over 500 RPM. That is valuable to know because sometimes faster RPM result in droplets landing outside of the beaker (which is how I know the coating holds up well). But under 500 RPM I experienced none of that.
Miguel Guerrero
Reviewed in Mexico on March 4, 2023
Un producto que se ve bastante profesional, hasta ahorita todo ha funcionado excelente, lo recomiendo
Julio Alfredo Plata Cabrera
Reviewed in Mexico on December 5, 2022
La verdad es que cumple lo esperado, lo único “malo” es que se debe esperar uno a que la temperatura se mantenga muy constante y cercana a lo que uno coloca de temperatura, son 4°C los que difiere por toda la periferia de la placa pero en el centro se mantiene a la temperatura que uno quiere.Aún así como Químico, es un equipo que sirve para realizar investigaciones.
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