Buy Laboratory Hotplates and Stirrers in Nigeria.

What is covered by laboratory hotplates and stirrers?

This category includes OHAUS Guardian 2000, 3000 and 7000 hotplate/stirrer families, plus large-volume and multi-position specialty stirrers. A hotplate provides a heated surface, while a magnetic stirrer couples motion to a stir bar; a combined hotplate stirrer may provide both functions. The exact product listing determines which functions are present.

The category does not replace the manufacturer’s model specifications. Heating-only, stirring-only and combined models can sit within related product families. Identify the required functions first and confirm the exact reference, top construction, controls and included accessories from current OHAUS documentation.

Where can I buy laboratory hotplates and stirrers in Nigeria?

Franance lists OHAUS Guardian hotplate/stirrers and specialty stirrers. Start at the hotplates and stirrers category, decide whether you need heating, stirring or both, and compare the exact model and vessel requirements. Add the chosen listing and quantity to the quote cart, with the requested temperature, speed, probe, plate and destination details. Ask the current written quotation to define the package; the cart does not take payment.

How do Guardian 2000, 3000 and 7000 differ in controls and selection?

The Guardian tiers are not merely cosmetic. OHAUS describes the 2000 as analog with simple knob control, the 3000 as digital with an LCD and optional temperature probe, and the 7000 as a digital family with additional safety and control functions. Model-level details still differ within each series, including heating-only versus heating-and-stirring variants and plate construction.

The official 3000 page states a hot-top indicator when the heater is above 40°C and an optional temperature probe. The 7000 description includes SmartPresence and SmartLink functions and SafetyHeat features; available functions must be confirmed for the exact model and region. Choose the controls and safety features required by the site, then confirm the order code, plate size, temperature and included probe or stir bar.

How do I choose between a hotplate, stirrer and combined unit?

State whether the requirement is heating, stirring or both, and whether the vessel must be heated through a plate or another arrangement. Compare the official model’s function, temperature range, speed range, capacity statement and plate material. If multiple vessels must be stirred at once or if larger volumes are involved, compare the specialty stirrer listing separately.

Do not assume a model with “stirrer” in its name includes heating, or that all hotplate stirrers have the same plate size and thermal controls. A combined instrument can save bench space but still may not match vessel dimensions, volume or method needs. Ask the manufacturer documentation and the quotation to establish the exact configuration.

How should I compare temperature and stirring ranges?

Use the exact product page to compare stated temperature limits, speed range, control increments and any probe or calibration features. Separate the setpoint range from the actual performance required by the application. The temperature and stirring specifications may differ among Guardian families, plate materials and model references.

If a method needs a defined temperature uniformity, ramp or speed behavior, state the requirement and ask for supporting model-specific documentation. Do not infer performance from the series name or an adjacent model. The responsible technical owner should review the manufacturer’s stated conditions and decide whether they satisfy the intended requirement.

When is heating-only, stirring-only or a combined unit the right class?

OHAUS’s Guardian listings include different functions; one listed Guardian 2000 model is heating-only, while Guardian 3000 and 7000 hotplate/stirrer listings combine heating and stirring. Specialty large-volume or multi-position stirrers address a different vessel arrangement. Start with the required function and compare the actual model rather than assuming every “hotplate and stirrer” page includes both.

If a heated sample requires stirring, specify both the heat and mixing requirements. If only mixing is needed, compare the specialty stirrer class and vessel volume rather than paying for a heated plate that is not required. State the number of vessels, positions and volume, and ask for an exact model reference and included stir bars, probes or supports.

What is the difference between plate temperature and sample temperature?

The hotplate’s displayed or controlled plate temperature is not necessarily the liquid or sample temperature. If the method requirement concerns the sample, identify how that temperature is to be measured and whether the exact model accepts an external probe. Check whether the probe is included, optional or available only with certain variants.

Guardian 3000 documentation describes an optional temperature probe, while Guardian 7000 details identify a probe connection and an included stainless-steel RTD probe in the listed product details. Such differences make exact configuration essential. Ask the supplier to state the offered model, probe reference and quoted inclusion. Do not infer sample temperature performance from a plate’s maximum temperature.

How do plate material and size affect selection?

Compare the plate’s shape, dimensions and construction with the vessel base. OHAUS Guardian listings show different plate sizes and constructions across models, including ceramic and coated or aluminum surfaces. These physical details influence what vessel fits and the stated heating capability. Do not assume that every model in a series uses the same plate or temperature range.

The exact 2000, 3000 and 7000 product pages describe differences in controls and plate material. Ask which top material and dimensions apply to the order reference, then check vessel stability and available bench space. If the work needs a support rod, splash shield or other accessory, verify its compatibility and list it separately in the quotation.

How should I compare stirring capacity and speed?

A stated working volume is a model-family specification, not proof that every vessel or liquid can be stirred at that volume. Compare the manufacturer’s volume statement, speed range, motor and magnetic coupling information with the vessel size and mixture characteristics established by the technical owner. Specialty large-volume and multi-position models should be assessed separately from a single-position hotplate stirrer.

For example, OHAUS lists Guardian 7000 models with several capacity values and a 60–1,600 rpm stirring range; its details describe a software-controlled ramp and magnetic coupling. These are sourced features of that family, not a guarantee for every load or viscosity. Confirm the exact order code, required vessel and any stir bar or accessory.

Which plate construction and safety functions should I review?

Compare the specified plate construction and size with the vessels and routine cleaning requirements. Review model-specific indicators, temperature limiting, over-temperature protection, spill management and other safety features stated by OHAUS. Features vary among the Guardian 2000, 3000 and 7000 families and should not be treated as universal.

Confirm the manufacturer’s safety documentation for the exact model and configuration. A visible indicator or marketing term is not a substitute for the product manual or a site risk review. The buyer should identify required safety functions and ask the quotation to state the offered model and included probe or accessories that affect those functions.

Does the application need a temperature probe or external control?

Check whether the exact hotplate/stirrer supports an external temperature probe and whether the probe is included, optional or tied to a model. If the requirement concerns sample temperature rather than plate temperature, make that distinction in the request and ask the manufacturer documentation to explain the supported measurement arrangement.

For multi-position or specialty stirrers, identify whether each position is controlled independently or shares a common arrangement only where the official source confirms this. Do not infer independent control from multiple visible positions. If the work requires data output or remote control, state the interface and software requirement and request compatibility confirmation.

What site, power and installation details should I provide?

Confirm the available bench dimensions, electrical supply, outlet location and any clearance or ventilation requirements from the manufacturer documentation. State the room and destination so the proposed model can be checked against the site. Include the vessel height, support needs and expected operator access where relevant.

For larger or multi-position equipment, ask for dimensions, weight, power demand and any accessory footprint. Do not assume a standard power cord or regional configuration is included unless the offer says so. Installation, commissioning, training and delivery to a final room should be listed separately if requested.

What accessories and documents belong in the quotation?

List required temperature probes, stir bars, support rods, clamps, covers, splash shields, cables or other accessories by model reference when available. Ask for confirmation that each item is compatible and state whether it is included. Request the current datasheet and manual for the exact proposed product.

If your quality process requires calibration, verification or specific training records, identify the document or service and ask whether it can be supplied. Manufacturer feature descriptions do not establish that a delivered instrument has been calibrated for a particular process. Keep accessory and service scope explicit so quotation comparisons remain meaningful.