From€467.5excl. VAT
In stock
Can't find what you're looking for?
Safe, precise, and efficient mixing & heating for versatile lab applications.
The Ohaus Guardian 3000 series comprises Digital Magnetic Hotplate Stirrers, designed for safety, efficient mixing, and rapid heating across diverse laboratory settings. Select from three models with variable plate sizes tailored to meet your specific needs and applications. Enhance accuracy with the optional temperature probe for precise sample temperature management.
Applications: Suitable for boiling liquids, preparing water/oil baths, sample and solution preparation, dissolving buffers and reagents, media preparation, and sample concentration. Display: The backlit LCD provides temperature and speed readings, with green lights indicating active heating and stirring, a prominent hot top indicator, and icons for probe usage and Single Point Calibration. Operation: Supports stirring speeds from 80 to 1600 rpm, with a temperature range from ambient +5°C to 500°C (ceramic top) or 380°C (ceramic-coated steel top). Includes a power cord and PTFE-coated stir bar for stirring models. Construction: Features durable metal housing, a PET front panel, control knobs, a separate on/off switch for heater disconnect, a built-in support rod holder, and user-friendly ceramic or ceramic-coated stainless steel tops that are easy to clean. Design Features: Safety-focused with a hot top indicator light, green lights for active heating and stirring, and a temperature probe connector for precision temperature control.
Lab equipment markets are fragmented. Buyers spend weeks calling distributors, comparing quotes, and verifying supplier reliability. Sellers struggle to reach global research labs.
We built Questpair to fix this. Every supplier on the platform is verified before listing. Every quote you receive comes from a real, vetted seller. AI prepares your case in minutes, then a real specialist takes over.
We're an independent team based in The Netherlands, working with research labs and procurement teams across Europe and worldwide.
With a service contract, ten to fifteen years is normal for most benchtop instruments. Detectors and pumps are the parts that wear first.
Often, yes. Verified suppliers frequently work with service partners converting the instrument. If applicable, we can list servicing options alongside the offer.
Ask a scientist through the request button. Parts are often available even when the instrument itself is discontinued.
Two to six weeks, depending on refurbishment scope and whether calibration is included.
We ship to 38 countries. Crating and customs handling are quoted with the instrument.
Tell us what you need and a scientist finds it for you, usually within the hour.
Last updated 7 November 2026
€468 sits in the middle range hot plates here. The middle half of the 219 with a price runs from €246 to €943.