78-1 Magnetic Stirrer Hot Plate Magnetic Mixer 1000ml - Lab Stir Plate

In this review the 78-1 Magnetic Stirrer Hot Plate is assessed for lab and small-scale workshop use; it is aimed at students, hobbyists and researchers who need a compact unit for stirring and moderate heating of up to 1000ml of liquid. The biggest reason to consider it is the combination of a fast-warming aluminum hot plate and a variable 0-2400 rpm stir motor that delivers quiet, vibration-free mixing, making it especially useful when visual observation or gentle agitation is required.

Key Features

• Stirring volume: Designed for up to 1000ml, it handles most bench-top batches used in teaching labs and small experiments.
• Adjustable speed: The control speed scale knob lets the operator dial the stirring speed between 0 and 2400 rpm for precise mixing control.
• Heating power: The 150W aluminum hot plate warms quickly and provides relatively uniform heat for mild heating tasks.
• Support stand: Includes a support stand with an adjustable thermometer holder that extends for convenient temperature monitoring.
• Accessories included: Comes with four PTFE-coated stirring bars and a replaceable fuse, so basic setups are ready out of the box.

Who It's For

The 78-1 is best for college labs, hobby chemists, homebrewers and small research groups needing a low-cost stirrer/heater for liquid cultures, solutions and light food prep tasks like kefir or cold brew. Its quiet motor and aluminum plate are useful when a non-invasive, steady stir is required while observing a reaction.

Those who need precise temperature control or sustained high-temperature operation should look elsewhere, as the unit has no built-in temperature regulator and tops near 95 degrees Celsius for limited periods; a separate digital thermometer is recommended for accurate monitoring.

Pros & Cons

Pros

• Simple manual speed knob gives accurate control across a broad 0-2400 rpm range.
• Aluminum hot plate offers fast warm-up and even heating for routine tasks.
• Comes with four PTFE stirring bars and a support stand for immediate use.
• Quiet operation with minimal vibration makes it suitable for visible observations.

Cons

• No integrated temperature regulator - users must monitor temperature with an external thermometer.
• Reports on maximum heat vary; some users find it less hot than expected for demanding heating tasks.

Specifications

Our Verdict

The 78-1 Magnetic Stirrer Hot Plate is a solid, value-oriented choice for students, hobbyists and labs needing reliable stirring and mild heating. It stands out for quiet, low-vibration stirring and quick aluminum plate warm-up, but users must accept the lack of an internal temperature regulator and monitor heat externally. For routine mixing and moderate heating it offers good functionality for the price.

Frequently Asked Questions

Does it include stir bars?
Yes, it ships with four PTFE-coated stirring bars and a spare fuse.

Can it control temperature precisely?
No, there is no built-in temperature regulator; use an external digital thermometer with the support stand holder.

What is the maximum stir speed?
The motor is adjustable up to 2400 rpm for a wide range of stirring speeds.