Hanna Instruments

Scientific Equipment

HI-303N-2 2.5L Two Speed/RPM Stirrer

HI-303N-2 2.5L Two Speed/RPM Stirrer

Hanna HI-303N-2 2.5L Two Speed/RPM Stirrer

HI-303N-2 2.5L Two Speed/RPM Stirrer

Complete with magnetic stir bar
2 year manufacturer warranty
In Stock
£454.65 (exc. VAT) £545.58 (inc. VAT)

HI-303N and HI-313N incorporate a LCD tachometer for complete Revolutions Per Minute (RPM) accuracy.

Mains powered - All mains operated equipment is compatible with UK AC voltage and frequency – 230V, 50Hz.

HI-303N-2 2.5L Two Speed/RPM Stirrer information

Hanna's extended description

Magnetic Stirrer with Tachometer

The HI-303N-2 heavy-duty magnetic stirrer has an LCD tachometer and can stir up to 2.5 L. The HI-303N-2 allows precise stirring repeatability by using two separate speed ranges. This assures maximum repeatability in experiments and processing for laboratory as well as production use. In addition to the tachometer and speed control, a limiter will assure that the maximum speed of 1000 rpm is never exceeded (Speedsafe).

Often, a sample is removed from the stirrer before the speed has been reduced. This can occasionally cause the motor to accelerate until it destroys itself. Hanna stirrers incorporate a VCO device that will stop the motor from accelerating as soon as the load is removed.

In addition to these features, HI-313N also has an automatic feedback feature. The motor is electronically controlled to maintain the chosen speed even as the load changes. If the viscosity or level (fluid weight) increases or decreases, the circuitry will adjust the output power.

Order Information:

The HI 303N magnetic stirrer, stainless steel cover, micro stir bar and instructions.


Specifications list


Maximum Stirring Capacity 2.5 liters
Speed Range - low 100 to 500 rpm
Speed Range - high 100 to 1000 rpm
Tachometer 0 to 1000 rpm
Power Supply 110/115 Vac or 230/240 Vac, 50/60 Hz
Installation Category II
Cover Material AISI 316 Stainless Steel
Environment 0 to 50°C (32 to 122°F); RH max 95%
Dimensions 180 x 180 x 70 mm (7.1 x 7.1 x 2.8")
Weight 1.4 kg (3.1 lb.)

Downloadable Manuals


Download PDF

Product Literature

literature - PDF

Hanna Instruments Literature

Questions & Answers

Got a question to ask? Use this form to submit your question.
Question will be displayed after moderation.
Name* Product Question*
No questions yet?
Don 't be shy, be the first to ask.