OHAUS Guardian 7000 Hotplate Stirrers

OHAUS Guardian 7000 Hotplate Stirrers are designed to promote laboratory safety by reducing the risk of accidents, since unattended hotplate stirrers pose a high risk to laboratories. The hotplate stirrers feature SMARTPresence, an IR-based proximity sensor which recognises a user nearby and, when no one is detected after a user-set timeout period has passed, safely and automatically turns off the heating function. This adds an extra layer of safety for both samples and laboratory when the hotplate stirrer is left unattended.

The series also features SMARTLink technology, which provides long-range user detection for heater safety enabled by installing the OHAUS Bluetooth dongle accessory into the USB port and pairing to a mobile device. If the Bluetooth link is broken, the Bluetooth function will safely shut off automatically. This adds an extra layer of observation to keep samples and the laboratory safe from accidents. Meanwhile, SafetyHeat is an internal safety protection system to provide safety in heating applications and dual monitoring of system health, shutting off heating before an overtemperature condition occurs and alerting users on the front panel.

The hotplate stirrers feature powerful assisted stirring performance. Stirring from 60–1600 rpm is made possible with the design of a powerful motor, strong magnet and software control ramp brake offering secure magnetic coupling for viscous applications. SafetyHeat protects by controlling the maximum temperature of the hotplate stirrer, preventing the overheating of sensitive samples, while SmartRate offers sample control with or without the included temperature probe that enables the unit to adjust temperatures and speed ramp rates. The intuitive, chemical-resistant SmartHousing provides an easy-to-clean design which channels away spills from internal components and the control panel while remaining cool to the touch, even at the highest temperature settings.

All models feature a backlit LCD display for temperature, speed and time with green indicator lights for when the units are heating and stirring.