PR1MA™ Hotplates, Magnetic Stirrers, and Hotplate-Stirrers

• Ceramic work surface, 7.1 x 7.1 In.
• Stir speed from 60 to 1500 rpm
• Temperature control up to 380 °C
• Three models: heat-stir, heat-only or stir only

PR1MA™ hotplates, stirrers, and hotplate-stirrers feature an exceptionally durable, chemical-resistant white ceramic work surface. Their space-efficient design (8 x 9 in. footprint), makes them ideal for use on crowded benchtops and inside of bio-hoods.

Advanced microprocessor controls with convenient turn knobs allow quick, precise adjustment and maintenance of speed and temperature. Safety indicator LED’s on the front panel indicate when the heating and/or stirring functions have been activated. With a square 7.1 In. work surface, all three models are compatible with a wide variety of popular sizes of borosilicate glass beakers, flasks, bottles, and other vessels. The hotplate/magnetic stirrer model (MS-1500) comes complete with a support rod for mounting thermometers and temperature probes.

Specifications

Temp. Range	80 °C to 380 °C
Speed Range	60 to 1,500 rpm
Platform Dimensions	7.1 x 7.1 In. | 180 x 180 mm
Operating Temp. Range	+4 °C to +65 °C
Dimensions	8.5 x 10 x 4.5 in.
(W x D x H)	20 x 23 x 11.5 cm
Weight	9 lbs | 4 kg
Electrical	120 V, 60Hz
Warranty	2 years

 
Models 

HP-380	PR1MA™ Hotplate
MS-1500	PR1MA™ Magnetic Stirrer
SH-1500	PR1MA™ Hotplate Magnetic Stirrer

 
 

• Large white ceramic top plate
• Digital speed and temperature control
• Safety LED indicates hot surface
• Available with stir capacities up to 15 L
• Control actual temperature (with optional probe)

Benchmark Scientific Hotplates and Stirrers provide reliable performance and safe operation for everyday laboratory use.  With two sizes (7 inch or 10 inch) to choose from, each model features a durable, chemical resistant, white ceramic top plate and advanced microprocessor controls.  The constant monitoring system provides precise control of temperature (heating models only) with rapid heating and faster boiling times.  In addition, the powerful motor drive system of the magnetic stirrer ensures efficient mixing in larger vessels and more viscous samples.
 
Temperature and/or mixing speed can be viewed at all times on the large digital display and safety LED illuminates when the top plate temperature exceeds 50°C.  An optional external temperature probe can be used for applications that require precise temperature control.  The probe provides direct feedback to the microprocessor with adjustments for maintaining the selected sample temperature within ±1°C.  An optional clamp assembly (H3770-CS) is available for mounting thermometers, temperature probes, etc. 

Guardian™ 2000 Hotplates and Stirrers

Dependable OHAUS Guardian 2000™ Hotplates and Stirrers are ideal for education and other lab environments that require affordable, everyday fast heating and reliable stirring up to 15 L. All three sizes offer simple knob control to easily adjust the heating and stirring functions. The durable housing includes a built-in support rod holder that accepts the optional support rod. Stirring models include PTFE-coated stir bars.

Main Attributes

• Applications
• Boiling Liquids, Basic Sample and Solution Preparation, Dissolving Buffers and Reagents, Preparing Media, Concentrating Samples
• Display
• Prominent hot top indicator light, green indicator lights when unit is heating and stirring
• Operation
• Simple knob control, stirring up to 1600 rpm, temperature up to 500°C (ceramic top) or 380°C (ceramic-coated stainless steel top), power cord (included), stirring models include PTFE-coated stir bar
• Construction
• Durable metal housing, PET front panel, control knobs, ON/OFF switch for heater disconnect, built-in support rod holder, easy to clean resin, ceramic or ceramic-coated stainless steel tops
• Design Features
• Hot top indicator light to protect user, green indicator lights illuminate when unit is heating and stirring

Limited Time Promo!

For a limited time, buy two Guardian™ 5000 Hotplate Stirrers (30981778)
and get one FREE (30981778-VF)!

 

Add items at the listed price, and one “-VF” item to order free product.

 

Free offers require purchase of designated items at listed price. Offers expire 12/31/2025. Not valid on previous purchases.
Special price applies only to item specified. Other capacities or items cannot be substituted.
All terms and conditions apply.

Guardian 5000™ Hotplates and Stirrers

Generation Guardian 5000™ Hotplate Stirrers are engineered for safety and versatility across research, academic, and industrial settings. They offer powerful heating and mixing, with premium hardware and software to support diverse users safely and reliably. Heating models reach up to 550 °C and feature 3 temperature control modes for quick heating or precise heating without overshoot. Select from 5 models with 3 plate sizes.

Main Attributes 

• Applications
• Temperature Sensitive Chemistry and Biology, Heat Fixation, Solution pH Optimization, Solution Sterilization, Endothermic Reactions, Denaturing of Organic Material, Sample and Solution Preparation, Dissolving Buffers and Reagents, Preparing Media, Boiling
• Display
• Backlit LCD display with white characters, integrated heating/stirring status indicators in green, and a prominent hot top indicator in yellow
• Operation
• 100-120 VAC or 220-240VAC 50/60Hz power entry, rotary switch knob(s) control
• Communication
• RS232 for data logging and remote control
• Construction
• Robust full metal housing, ceramic square top plate or ceramic-coated aluminum round top plate, high performance SmCo magnet
• Design Features
• Large dip angle front panel for easy monitoring from a distance, smooth enclosure surfaces for easy cleaning, audible alarm, IP32 protection, rapid install splashing shield (optional)

• Precise liquid temperatures and stirring speeds
• Digital display and safety indicators
• Angled front panel and large control knobs
  

AccuPlate™ digital hot plates and stirrers are powerful, versatile and easy to use. Every unit is built for consistent performance and long-term reliability. With three models to choose from, there is an AccuPlate™ hot plate and stirrer to meet your lab's needs.

Ceramic Durability and Resistance

Each AccuPlate™ is equipped with a Pyroceram® ceramic top plate that is extremely durable, easy to clean and is highly resistant to chemical attack. In addition, the ceramic plates can reach higher temperatures (rated to 550°C) than metal topped units and the white color makes it easy to view color changes in applications such as titrations. The AccuPlate™ Hotplate and Hotplate Stirrer models incorporate a powerful heating element positioned directly beneath the ceramic top plate. This provides optimal heat transfer to the plate and sample while minimizing heat transfer to the electronics and housing.

Acceleration Regulation

The Stirrer and Hotplate Stirrer utilize a powerful motor drive system paired with strong permanent magnets to ensure a consistent connection to the stir bar. The control software is designed to minimize stir bar decoupling by regulating the acceleration rate of the motor. The durable cast aluminum housing and angled faceplate protect the electronics in the event of an accidental spill. The Hotplate and Hotplate Stirrer models also feature a bright red "Hot Top" indicator to alert users that the ceramic top is too hot to touch - even if the heater is off, the light will remain on until the top has cooled to a safe temperature.
 
 
 Specifications

* Temperature range using the External Temperature Controller is 5° to 200°C (41° to 392°F)