This is the Apera instruments 901 Intelligent Magnetic Stirrer

This Stirrer has the following features.

Microprocessor chip design it enables you to adjust & store rotation speed

it adopts ABS plastic housing & Transparent coping design and meets IP54 waterproof & dustproof standards.

powered by either AA batteries (included) or a DC 6V adapter making it great for portable use in field or incubators.

Alarm for low battery

Equipped with specially designed electrode clip which can freely rise and fall.

Accessories that come with stirrer;

10mm holder, 220V/DCV adapter, 4 AA batteries, electrode clip and stir bar.

All brand new in the original box.