We are open for business, click on the "Contact Us" link below for our normal hours of operation.
Visit www.coronavirus.gov for Information on the Corona-virus disease (COVID-19) Pandemic.
If you do not understand these 3 words, google them: symptom, symptomatic and asymptomatic. Some of us were ignorant at Clarkson but not anymore.

How many young people under the age of 18 have died while having the Corona Virus in the state of California in the USA with a population of 39.5 million?
CDPH shows 79 as of September 20, 2022. This is 0.0002% of the California population. Have a health problem or over 80, yes it is dangerous but so is the Flu and Pneumonia.
Sweden with 10 million people never had any mask mandate and had the same results as the state of California! - - References: CDPH , Flu and Sweden

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Sper

Displaying products 1 - 7 of 7 results
Sper Scientific 300033, 300034
Digital Refractometer NR111 Brix 0 to 88% Sper
List Price: $706.00
Clarkson Price: $635.40
You Save: $70.60 (10 %)
Digital Refractometer NR111 Brix 0 to 88% Sper
Clarkson 300033
Digital Refractometer Brix 0 to 88% Sper 300033
Sper Scientific 300033
free shipping
Sper Scientific 300051, 300052, and 300053 Pocket Digital Refractometer Brix
Pocket Digital Refractometer Brix 0 to 65%
List Price: $290.00
Clarkson Price: $261.00
You Save: $29.00 (10 %)
Pocket Digital Refractometer Brix 0 to 65%
Clarkson 300051
Pocket Digital Refractometer Brix 0 to 65%
Sper Scientific 300051
free shipping
Sper Scientific 300051, 300052, and 300053 Pocket Digital Refractometer Brix
Pocket Digital Refractometer CDR111 Brix 0 to 88%
List Price: $290.00
Clarkson Price: $261.00
You Save: $29.00 (10 %)
Pocket Digital Refractometer CDR111 Brix 0 to 88%
Clarkson 300052
Pocket Digital Refractometer Brix 0 to 88%
Sper Scientific 300052
free shipping
Sper Scientific 300051, 300052, and 300053 Pocket Digital Refractometer Brix
Pocket Digital Refractometer CDR151 Brix 0 to 88%
List Price: $334.00
Clarkson Price: $283.90
You Save: $50.10 (15 %)
Pocket Digital Refractometer CDR151 Brix 0 to 88%
Clarkson 300053
Pocket Digital Refractometer Brix 0 to 88%
Sper Scientific 300053
free shipping
Sper Scientific 300033, 300034
Digital Refractometer Brix 0 to 88% Sper 300034
List Price: $991.00
Clarkson Price: $891.90
You Save: $99.10 (10 %)
Digital Refractometer Brix 0 to 88% Sper 300034
Clarkson 300034
Digital Refractometer Brix 0 to 88% Sper 300034
Sper Scientific 300034
free shipping
Sper Scientific 300033, 300034
Digital Refractometer - Brix/Salinity Sper 300035
List Price: $655.00
Clarkson Price: $589.50
You Save: $65.50 (10 %)
Digital Refractometer - Brix/Salinity Sper 300035
Clarkson 300035
Digital Refractometer - Brix/Salinity Sper 300035
Sper Scientific 300035
free shipping
Sper Scientific 300036
Digital Refractometer - Clinical Sper 300036
List Price: $655.00
Clarkson Price: $589.50
You Save: $65.50 (10 %)
Digital Refractometer - Clinical Sper 300036
Clarkson 300036
Digital Refractometer - Clinical Sper 300036
Sper Scientific 300036
free shipping