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  • Photograph of Ohaus Mini Auto Stirrer, front facing.
  • Photograph of Ohaus Mini Auto Stirrer, right facing.
  • Photograph of Ohaus Mini Auto Stirrer, left facing, demonstrating stirring in beaker (sold separately.)

Ohaus Mini Auto Stirrer

Item #: 23207-120

Normal Availability: Discontinued

Product Description

This product was discontinued in 2023. The closest match is the model e-G21ST04R Guardian stirrer which has a 4" x 4" top plate but a larger footprint and a resin plate and does not auto-stir.

Ohaus Mini Auto Stirrers (model HSMNAS4CAL) are rugged, compact units that stir up to 1,000 mL of liquid consistently and reliably due to their powerful motor and magnet. The chemical-resistant ceramic top plate has an easy to clean, reflective white surface that measures 4" x 4" (10.2 cm x 10.2 cm).  The housing is constructed of heat-resistant polymer that is cool to the touch and chemical resistant.  A built in support rod holder with locking knob at the rear of the unit accepts the optional Support Rod and Clamp Kit (item # 23260).  This Auto-Stirrer is automatically activated by the minimum weight of a flask or beaker, and will stop stirring when mixing vessel is removed.

This stirrer is supplied with a 1.5" (3.8 cm) PTFE coated stir bar. The unit has a 2 year, industry leading limited warranty on parts and labor.

This stirrer can be run in conditions from 5 to 40 °C (41 to 104 °F) and is available in 120 or 230 V.

A detailed description of this model as well as similar hotplates, stirrers, and combination units can be found in our stirrer selection guide.

This model replaces the obsolete Talboys Basic Mini Auto Stirrer (953207) and the Talboys Ergonomic Basic Mini Auto Stirrer (984TA5AASTUS).



WARNING: OHAUS products can expose you to chemicals including the chemicals listed in this Table, which are known to the State of California to cause cancer and/or birth defects or other reproductive harm. For more information go to

These and other Proposition 65 chemicals may be present only in residual amounts, or contained internally in OHAUS equipment, or encapsulated in another material where exposure is unlikely or negligible. This warning is being provided out of an abundance of caution.

Other Details

Manufactured in: USA

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