YSI 6920 Multiparameter Water Quality Meter Ultrasonic Flaw Detectors & Phased Array Systems and push-buttons for count reset

and push-buttons for count reset and battery test

The 464 Electronic Pump Control Unit has automatic preset sample modes from low through high flow settings

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the 1640 actuates the sampler only while the liquid is touching the probe

so if you need to monitor one gas one day and another gas the next

YSI 6920 Multiparameter Water Quality Meter Ultrasonic Flaw Detectors & Phased Array Systems and push-buttons for count resetThe YSI 6920 is an economical logging system for long term, in situ monitoring and profiling. It will log all parameters at programmable intervals and store 150,000 readings. At 15 minute intervals, it will log data for about 30 days. A cost effective logging unit rated at 200 feet, the YSI 6920 can monitor up to 14 parameters simultaneously, including oxygen with the YSI Rapid PulseTM stirring independent sensor and turbidity sensor not affected by