Electronic Fish Counting System Smith-Root SR-1101 , 20 Counts Per Second Y2024MB2 removed from an Thermo Surveyor

removed from an Thermo Surveyor MSQ Plus Mass Spectrometer comes as shown in picture - Type: Enclosed - Number of Outputs: 4 - Voltage - Input: 85 ~ 264 VAC

no batteries

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which may be useful for advanced monitoring applicationsThe BIS™ bilateral sensor is designed for symmetrical placement to capture bi-­hemispheric data

Electronic Fish Counting System Smith-Root SR-1101 , 20 Counts Per Second Y2024MB2 removed from an Thermo SurveyorSmith Root SR 1101 Fish Counter, 20 Counts Per Second Used, in very good condition, powers on, no further test done. Please see pictures. Principle of Operation The SR 1101 uses a counting tunnel with metal rings, flush mounted, on the inner surface. The passage of fish through the counting tunnel causes water conductivity changes. Special logic in the SR 1101 allows it to discriminate between upstream and downstream fish passages. Two six digit