OHAUS Guardian 7000 Hot Plate Stirrers

OHAUS Guardian 7000 Hot Plate Stirrers are designed with outstanding safety features and superior heating and mixing performance. The SmartHousing is chemical resistant with an innovative, easy-to-clean design that channels spills away from internal components and the angled glass control panel. The bright LCD display includes intuitive icons, temperature, speed, and time settings – all designed to monitor performance from across the lab. Precise stirring from 60 to 1600 RPM is made possible by the design of a powerful motor, strong magnet, and a software-controlled ramp rate, ensuring secure magnetic coupling for viscous applications.

SmartPresence and SmartLink Technologies ensure supervised operation. Protect the lab with the patented SmartPresence and SmartLink technologies. These exclusive features automatically shut off the heater if no one is detected after a suer set “time out” period has passed or the Bluetooth® link between a paired mobile device is broken.

SafetyHeat System is an industry-leading early detection system that ususes two independent safety controls to continuously monitor the electronics and shut off heating before an overtemperature condition occurs.

SmartHeat allows the user to set the maximum temperature of the unit and SmartRate enables fast of slow temperature and speed ramp rates. The programming features allows storage of five multi-step programs.

Click here for a list of available accessories for OHAUS Guardian 7000 Hot Plate Stirrers.

Key Features

  • Applications include 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
  • Backlit LCD display for temperature, speed and time, green indicator lights when unit is heating and stirring, two prominent hot top indicator lights, icons for SmartRate™, SmartHeat™, SmartPresence™, SmartLink™, probe in use, single point calibration
  • Operation: timer, stirring from 60 to 1600 RPM, temperature range of +5°C to 500°C (ceramic top) or 380°C (aluminum top), power cord (included), 8” (20.3 cm) stainless steel RTD temperature probe, 1.5” (3.8 cm) PTFE coated stir bar, in-use cover
  • USB port provides flexibility for programming of repeat applications and enhancing safety with SmartLink™ technology; the long-range user detection function operated with the OHAUS Bluetooth dongle accessory (sold separately)
  • Construction: Probe connection, SmartHousing™ stays cool to the touch and is chemical-resistant, IP21 ingress protection, hardened glass front panel, control knobs, on/off switch for heater disconnect, built-in support rod holder, easy-to-clean ceramic or aluminum tops
  • Features: Hot top indicator lights, audible alarm, SmartHeat™ temperature limiting function, SafetyHeat™ shuts off heater in the event of malfunction, temperature calibration feature for 5 probe and 5 plate setpoints, temperature priority function, SmartRate™ functions

Specifications for OHAUS Guardian 7000 Hot Plate Stirrers
EF42187 EF42188 EF42189 EF42190 EF42191 EF42192
Top Plate Size 7" x 7" 10" x 10" 5.3" Diameter Round
Speed Range 60 rpm to 1600 rpm
Speed Stability ±2%
Temp Range Ambient + 5°C to 500°C Ambient + 5°C to 380°C
Temp Stability* ±1% Plate, below 100C   ±1°C
     and ±0.5% Probe, below 100°C ±1°C
Temp Accuracy Plate +/- 5 °C (after Single Point Calibration) and Probe +/- 0.5 °C (after Single Point Calibration)
Temp Calibration Five Plate and Five Probe
Timer 1 minute to 99 hours and 59 minutes
Control Digital
Display Custom Backlit LCD
Communication USB
Capacity 15L 18L 20L
Top Plate Material Ceramic Aluminum
H x L x W 4.8 x 12.2 x 8.8 in 4.8 x 16.3 x 11.3 in 5.0 x 10.5 x 6.8 in
Net Weight 5.7lbs 11.5lbs 5.7lbs
Power (50/60Hz) 120V, 10A 230V, 6.0A 120V, 11.2A 230V, 7A 120V, 8.3A 230V, 4.6A
Power Consumption 1080W 1242W 1210W 1449W 896W 592W
Working Environment 41 °F – 104 °F, 80 % RH, non-condensing / 5 °C – 40 °C, 80 % RH, non-condensing
Accessories Temperature Probe and In Use Cover (Included)
*Conditions Permitting. Variations in temperature measurement process, vessel, ambient, and sample will impact actual performance.
Item Max. Temp Power Top Plate Material Top Plate Size Unit of Measure Price Purchase
500°C 120V Ceramic 7 x 7" Each
In Stock
500°C 230V Ceramic 7 x 7" Each
In Stock
500°C 120V Ceramic 10 x 10" Each
In Stock
500°C 230V Ceramic 10 x 10" Each
In Stock
380°C 120V Aluminum 5.3" Dia Round Each
In Stock
380°C 230V Aluminum 5.3" Dia Round Each
In Stock

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