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"Biology Educational Materials"

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Salinity/Temperature Pen, Large Display, Sper Scientific

Item Number:  (470204-160)
Simultaneously displays the parameter being measured and temperature in °C or °F.

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LaMotte® Salinity/TDS/Temperature TRACER

Item Number:  (470012-548)
The electronic salt tester measures the Sodium Chloride level in salt water pools with a range from 0 to 9,999 ppm. TDS is measured from 0 to 9,999 ppm and Temperature from 32.0° to 149°F.

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Hanna Instruments Salinity Test Kit

Item Number:  (470006-748)
This chemical test kit that measures salinity by mercuric nitrate titration. This is supplied complete with all of the reagents and equipment necessary to perform approximately 110 tests.

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Economy Digital Seawater Refractometer

Item Number:  (470017-304)
Eliminates Uncertainty Associated with Mechanical Refractometers

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