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Follow on Google News | New Dissolved Oxygen and Temperature Logger for Water MonitoringPME has developed a small dissolved oxygen and temperature logger called the miniDOT. With a unique optical DO sensor design, the logger is able to last many months before the single AA battery needs to be changed.
By: Kristin Elliott CEO Michael Head states, “We are very excited about the miniDOT logger because it allows users to take measurements frequently while maintaining months of service before the batteries need to be replaced.” The miniDOT contains a dissolved oxygen sensor, which is an optode that measures lifetime-based luminescence quenching of fluorescence of a thin membrane, and a thermistor to measure temperature. Data are recorded on a 2GB internal SanDisk memory card. If the sample frequency is every 1 minute, the logger will last for 200 days. If the sample frequency is every ten minutes, the logger will last for 475 days. Each miniDOT logger is extremely portable and easy to handle. PME will provide data visualization software with each miniDOT. This is a Java program that displays miniDOT logger data files and computes oxygen saturation. It calculates air pressure based on elevation of the water surface above sea level. For more information and specifications please visit, http://www.pme.com/ # # # For more than 20 years Precision Measurement Engineering, Inc. has been dedicated to designing and manufacturing high-quality sensors and systems. End
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