Featuring OHAUS SMART technology, the Guardian Series protects the lab with advanced safety features designed to reduce the chance of accidents. Designed with superior heating and stirring performance, the Guardian 7000 and 5000 Series Hotplate Stirrers combine durability and affordability to reduce the high costs of doing business in science labs. Modernize your lab with OHAUS SMART technology including *SmartPresence™, *SmartLink™, *SmartRate™, *SmartHeat™, SafetyHeat™, and SmartHousing™. The bright LCD screen displays temperature, speed and *time, and a green indicator lights when the unit is heating and stirring.
*Safety features found in the OHAUS Guardian 7000 series only.
Guardian 7000 Series
OHAUS Guardian 7000 Hotplate 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.
Protect your lab with patented SmartPresence and SmartLink technologies. These exclusive features automatically shut off the heater if no one is detected after a user set “time out” period has passed or the *Bluetooth® link between a paired mobile device is broken.
SafetyHeat is an industry-leading early detection system that uses two independent safety controls to continuously monitor the electronics and shut off heating before an over-temperature condition occurs.
Precise stirring from 60 to 1600 rpm is made possible by the design of a powerful motor, strong magnet and software controlled ramp rate, ensuring secure magnetic coupling for viscous applications.
SmartHeat allows you to set the maximum temperature of the unit and SmartRate enables fast or slow temperature and speed ramp rates. The programming feature allows storage of 5 multi-step programs.
| Model | Plate Size | Capacity | Function | Plate Material | Speed Range | Temperature Range |
| e-G71HS07C | 7 x 7 in. | 15 L | Heating and Stirring | Ceramic | 60 rpm to 1600 rpm | Ambient + 5 °C – 500 °C |
| e-G71HS10C | 10 x 10 in. | 18 L | Heating and Stirring | Ceramic | 60 rpm to 1600 rpm | Ambient + 5 °C – 500 °C |
| e-G71HSRDM | 5.3 in diameter | 20 L | Heating and Stirring | Aluminum | 60 rpm to 1600 rpm | Ambient + 5 °C – 380 °C |
Guardian 5000 Series
OHAUS Guardian 5000 Hotplates Stirrers are designed for safety and simplicity in all research, academia and industrial applications. The design ensures proper mixing and temperature control of the top plate or your sample when using the optional temperature probe. Heating models include a Single Point Calibration feature for multiple setpoints. Select from five models with three plate sizes for your everyday heating and stirring applications.
SafetyHeat is an industry-leading early detection system that uses two independent safety controls to continuously monitor the electronics and shut off heating before an over-temperature condition occurs.
Precise stirring from 60 to 1600 rpm is made possible by the design of a powerful motor, strong magnet and software controlled ramp rate, ensuring secure magnetic coupling for viscous applications.
The bright LCD display includes large temperature and speed settings, intuitive icons and a prominent hot top indicator - all designed to quickly and easily monitor performance from across the lab.
The SmartHousing is chemical resistant with an innovative, easy-to-clean design that channels spills away from internal components and the angled control panel.
| Model | Plate Size | Plate Material | Capacity | Function | Speed Range | Temperature Range |
| e-G51ST07C | 7 x 7 in. | Ceramic | 15 L | Stirring | 60 rpm to 1600 rpm | - |
| e-G51HP07C | 7 x 7 in. | Ceramic | 15 L | Heating | - | Ambient + 5 °C – 500 °C |
| e-G51HS07C | 7 x 7 in. | Ceramic | 15 L | Heating and Stirring | 60 rpm to 1600 rpm | Ambient + 5 °C – 500 °C |
| e-G51HS10C | 10 x 10 in. | Ceramic | 18 L | Heating and Stirring | 60 rpm to 1600 rpm | Ambient + 5 °C – 500 °C |
| e-G51HSRDM | 5.3 in. diameter | Aluminum | 20 L | Heating and Stirring | 60 rpm to 1600 rpm | Ambient + 5 °C – 380 °C |