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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 92 as of January 3, 2023. 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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Ohaus Water Analysis Meters & Electrodes

Click on the links below for information. E-mail sales@clarksonlab.com for additional help, discounts and to place orders.
Prices below are effective January 1, 2022.

Models #: ST5000-B
MSRP :
$1,406.00

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Measurement Range
-2.00 – 20.00 pH;-2000.00 – +2000.00 mV;-30 – 130°C
Measurement Resolution
0.001 pH;0.01 mV;0.1 °C
Accuracy ± (mV)
0.03 mV
Models #: ST5000-F
MSRP :
$1,495.00

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Measurement Range
-2.00 – 20.00 pH;-2000.00 – +2000.00 mV;-30 – 130°C
Measurement Resolution
0.001 pH;0.01 mV;0.1 °C
Accuracy ± (mV)
0.03 mV
Models #: AB41PH-B
MSRP :
$946.00

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Measurement Range
-2.000 – 20.000 pH;-10.0 °C – 125.0 °C;-2000.00 – +2000.00 mV
Measurement Resolution
0.1 mV;0.1 °C;0.001 pH
Accuracy ± (mV)
0.3 mV
Models #: AB41PH-F
MSRP :
$1,075.00

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Measurement Range
-2.000 – 20.000 pH;-10.0 °C – 125.0 °C;-2000.00 – +2000.00 mV
Measurement Resolution
0.1 mV;0.1 °C;0.001 pH
Accuracy ± (mV)
0.3 mV
Models #: AB33M1-B
MSRP :
$786.00

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Measurement Range
-2.00 – 20.00 pH;-5 °C – 110 °C;-2000.00 – +2000.00 mV
Measurement Resolution
0.1 mV;0.1 °C;0.01 pH
Accuracy ± (mV)
0.5 mV
Models #: AB33M1-F
MSRP :
$925.00

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Measurement Range
-2.00 – 20.00 pH;-5 °C – 110 °C;-2000.00 – +2000.00 mV
Measurement Resolution
0.1 mV;0.1 °C;0.01 pH
Accuracy ± (mV)
0.5 mV
Models #: AB33PH-B
MSRP :
$550.00

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Measurement Range
-5 °C – 110 °C;-2.00 – 16.00 pH;-2000.00 – +2000.00 mV
Measurement Resolution
0.1 °C;0.01 pH;1 mV
Accuracy ± (mV)
1 mV
Models #: AB33PH-F
MSRP :
$625.00

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Measurement Range
-5 °C – 110 °C;-2.00 – 16.00 pH;-2000.00 – +2000.00 mV
Measurement Resolution
0.1 °C;0.01 pH;1 mV
Accuracy ± (mV)
1 mV
Models #: AB33EC-B
MSRP :
$502.00

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Models #: AB33EC-F
MSRP :
$627.00

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Models #: AB23PH-B
MSRP :
$392.00

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Measurement Range
0 – 100°C;0.00 – 14.00 pH;-1999 – 1999 mV
Measurement Resolution
0.1 °C;0.01 pH;1 mV
Models #: AB23PH-F
MSRP :
$446.00

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Measurement Range
0 – 100°C;0.00 – 14.00 pH;-1999 – 1999 mV
Measurement Resolution
0.1 °C;0.01 pH;1 mV
Models #: AB23EC-B
MSRP :
$410.00

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Measurement Range
00.0 μS/cm – 199.9 mS/cm
Measurement Resolution
0.01 μS/cm
Models #: AB23EC-F
MSRP :
$513.00

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Measurement Range
00.0 μS/cm – 199.9 mS/cm
Measurement Resolution
0.01 μS/cm
Models #: ST2200-F
MSRP :
$383.00

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Measurement Range
0 – 100°C;0.00 – 14.00 pH;-1999 – 1999 mV
Measurement Resolution
0.1 °C;0.01 pH;1 mV
Models #: ST2200-B
MSRP :
$337.00

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Measurement Range
0 – 100°C;0.00 – 14.00 pH;-1999 – 1999 mV
Measurement Resolution
0.1 °C;0.01 pH;1 mV
Models #: ST400M-B
MSRP :
$779.00

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Measurement Range
0-20 MΩ•cm;-5 °C – 110 °C;-2.00 – 16.00 pH;00.0 μS/cm – 199.9 mS/cm;0.1 mg/L – 199.9 g/L (TDS);-1999 – 1999 mV;0-99.9 psu
Measurement Resolution
0.01 mg/L;0.01 psu;0.1 °C;0.1 μs/cm;0.01 pH;0.01 Ω•cm;1 mV
Accuracy ± (mV)
1 mV
Models #: ST400M-F
MSRP :
$969.00

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Measurement Range
0-20 MΩ•cm;-5 °C – 110 °C;-2.00 – 16.00 pH;00.0 μS/cm – 199.9 mS/cm;0.1 mg/L – 199.9 g/L (TDS);-1999 – 1999 mV;0-99.9 psu
Measurement Resolution
0.01 mg/L;0.01 psu;0.1 °C;0.1 μs/cm;0.01 pH;0.01 Ω•cm;1 mV
Accuracy ± (mV)
1 mV
Models #: ST400M-G
MSRP :
$1,000.00

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Measurement Range
0-20 MΩ•cm;-5 °C – 110 °C;-2.00 – 16.00 pH;00.0 μS/cm – 199.9 mS/cm;0.1 mg/L – 199.9 g/L (TDS);-1999 – 1999 mV;0-99.9 psu
Measurement Resolution
0.01 mg/L;0.01 psu;0.1 °C;0.1 μs/cm;0.01 pH;0.01 Ω•cm;1 mV
Accuracy ± (mV)
1 mV
Models #: ST400-B
MSRP :
$502.00

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Measurement Range
-5 °C – 110 °C;-2.00 – 16.00 pH;-1999 – 1999 mV
Measurement Resolution
0.1 °C;0.01 pH;1 mV
Accuracy ± (mV)
1 mV
Models #: ST400-F
MSRP :
$584.00

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Measurement Range
-5 °C – 110 °C;-2.00 – 16.00 pH;-1999 – 1999 mV
Measurement Resolution
0.1 °C;0.01 pH;1 mV
Accuracy ± (mV)
1 mV
Models #: ST400-G
MSRP :
$616.00

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Measurement Range
-5 °C – 110 °C;-2.00 – 16.00 pH;-1999 – 1999 mV
Measurement Resolution
0.1 °C;0.01 pH;1 mV
Accuracy ± (mV)
1 mV
Models #: ST400D
MSRP :
$1,453.00

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Measurement Range
0.00 – 20.0 mg/L(ppm);0 – 50°C
Measurement Resolution
0.01 mg/L;0.1%;0.1 °C
Models #: ST400D-B
MSRP :
$616.00

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Measurement Range
0.00 – 20.0 mg/L(ppm);0 – 50°C
Measurement Resolution
0.01 mg/L;0.1%;0.1 °C
Models #: ST400D-G
MSRP :
$1,490.00

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Measurement Range
0.00 – 20.0 mg/L(ppm);0 – 50°C
Measurement Resolution
0.01 mg/L;0.1%;0.1 °C
Models #: ST300
MSRP :
$448.00

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Measurement Range
0 – 100°C;0.00 – 14.00 pH;-1999 – 1999 mV
Measurement Resolution
0.1 °C;0.01 pH;1 mV
Accuracy ± (mV)
1 mV
Models #: ST300-B
MSRP :
$338.00

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Measurement Range
0 – 100°C;0.00 – 14.00 pH;-1999 – 1999 mV
Measurement Resolution
0.1 °C;0.01 pH;1 mV
Accuracy ± (mV)
1 mV
Models #: ST300-G
MSRP :
$468.00

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Measurement Range
0.00 – 14.00 pH;-1999 – 1999 mV;0 – 100 °C
Measurement Resolution
0.01 pH;1 mV;0.1 °C
Accuracy ± (mV)
1 mV
Models #: ST300C
MSRP :
$512.00

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Measurement Range
00.0 μS/cm – 199.9 mS/cm;0 – 100°C;0.1 mg/L – 199.9 g/L (TDS)
Measurement Resolution
0.1 °C;0.01 μS/cm;0.1 mg/L
Models #: ST300C-B
MSRP :
$413.00

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Measurement Range
00.0 μS/cm – 199.9 mS/cm;0.1 mg/L – 199.9 g/L (TDS);0 – 100 °C
Measurement Resolution
0.01 μS/cm;0.1 mg/L;0.1 °C
Models #: ST300C-G
MSRP :
$548.00

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Measurement Range
00.0 μS/cm – 199.9 mS/cm;0.1 mg/L – 199.9 g/L (TDS);0 – 100 °C
Measurement Resolution
0.01 μS/cm;0.1 mg/L;0.1 °C
Models #: ST300D
MSRP :
$706.00

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Measurement Range
0.00 – 19.99;20.0 – 45.0 mg/L;200 – 400%;0 – 50 °C
Measurement Resolution
0.1 mg/L;1 mg/L;0.1%;1%;0.1 °C;0.1 ppm;1 ppm
Models #: ST300D-B
MSRP :
$399.00

Add to Comparison
Measurement Range
0.00 – 19.99;20.0 – 45.0 mg/L;200 – 400%;0 – 50 °C
Measurement Resolution
0.1 mg/L;1 mg/L;0.1%;1%;0.1 °C;0.1 ppm;1 ppm
Models #: ST300D-G
MSRP :
$758.00

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Measurement Range
0.00 – 19.99;20.0 – 45.0 mg/L;200 – 400%;0 – 50 °C
Measurement Resolution
0.1 mg/L;1 mg/L;0.1%;1%;0.1 °C;0.1 ppm;1 ppm
Models #: ST10
MSRP :
$64.00

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Measurement Range
0.00 – 14 pH
Measurement Resolution
0.1 pH
Models #: ST10C-A
MSRP :
$85.00

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Measurement Range
0.00 – 199.9 μs/cm
Measurement Resolution
0.1 μs/cm
Models #: ST10C-B
MSRP :
$85.00

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Measurement Range
0 – 1999 μs/cm
Measurement Resolution
1μs/cm
Models #: ST10C-C
MSRP :
$85.00

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Measurement Range
0.00 – 19.99 ms/cm
Measurement Resolution
10 μs/cm
Models #: ST10R
MSRP :
$139.00

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Measurement Range
-1000 – 1000 mV
Measurement Resolution
1 mV
Accuracy ± (mV)
2 mV
Models #: ST10S
MSRP :
$85.00

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Measurement Range
0.0 – 10.0 ppt
Measurement Resolution
0.1 ppt
Models #: ST10T-A
MSRP :
$96.00

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Measurement Range
0.0 – 100.0 mg/L
Measurement Resolution
0.1 mg/L
Models #: ST10T-B
MSRP :
$96.00

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Measurement Range
0.0 – 1000 mg/L
Measurement Resolution
1 mg/L
Models #: ST20
MSRP :
$109.00

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Measurement Range
0.0 – 99.0 °C;0.00 – 14 pH
Measurement Resolution
0.01 pH
Models #: ST20C-A
MSRP :
$125.00

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Measurement Range
0.00 – 199.9 μs/cm;0.0 – 99.0 °C
Measurement Resolution
0.1 μs/cm
Models #: ST20C-B
MSRP :
$125.00

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Measurement Range
0.0 – 99.0 °C;0 – 1999 μs/cm
Measurement Resolution
1μs/cm
Models #: ST20C-C
MSRP :
$125.00

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Measurement Range
0.0 – 99.0 °C;0.00 – 19.99 ms/cm
Measurement Resolution
10 μs/cm
Models #: ST20D
MSRP :
$435.00

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Measurement Range
0.0 – 19.9 mg/L
Measurement Resolution
0.1 mg/L
Models #: ST20M-B
MSRP :
$135.00

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Measurement Range
0.0 – 1000 mg/L;0.0 – 99.0 °C;0.00 – 14 pH;0 – 1999 μs/cm
Measurement Resolution
1μs/cm;0.01 pH
Models #: ST20M-C
MSRP :
$135.00

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Measurement Range
0.0 – 99.0 °C;0.00 – 14 pH;0.00 – 19.99 ms/cm;0.0 – 10.0 ppt
Measurement Resolution
0.01 pH;0.01ms/cm;0.1 ppt;0.1 °C
Models #: ST20R
MSRP :
$187.00

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Measurement Range
-1000 – 1000 mV;0.0 – 99.0 °C
Measurement Resolution
1 mV
Accuracy ± (mV)
2 mV
Models #: ST20S
MSRP :
$125.00

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Measurement Range
0.0 – 80.0 ppt;0.0 – 99.0 °C
Measurement Resolution
0.1 ppt
Models #: ST20T-A
MSRP :
$125.00

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Measurement Range
0.0 – 100.0 mg/L;0.0 – 99.0 °C
Measurement Resolution
0.1 mg/L
Models #: ST20T-B
MSRP :
$125.00

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Measurement Range
0.0 – 1000 mg/L;0.0 – 99.0 °C
Measurement Resolution
1 mg/L
Models #: STCON8C Ohaus 83033972
MSRP :
$399.00

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Models #: STCON5
MSRP :
$182.00

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Models #: STCON8
MSRP :
$249.00

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Models #: ST210
MSRP :
$70.00

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Measurement Range
0.00 – 14 pH
Models #: ST280
MSRP :
$252.00

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Measurement Range
0.00 – 14 pH
Models #: ST322
MSRP :
$136.00

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Measurement Range
0.00 – 14 pH
Models #: ST410
MSRP :
$189.00

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Measurement Range
0.00 – 14 pH
Models #: ST420
MSRP :
$295.00

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Measurement Range
2.00 – 12.00 pH
Models #: ST230
MSRP :
$132.00

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Measurement Range
0.00 – 14 pH
Models #: ST260
MSRP :
$176.00

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Measurement Range
0 – 100°C;0.00 – 14 pH
Models #: ST270
MSRP :
$313.00

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Measurement Range
0 – 100°C;0.00 – 14 pH
Models #: ST272
MSRP :
$183.00

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Measurement Range
2.00 – 12.00 pH;0 – 50°C
Models #: ST310
MSRP :
$151.00

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Measurement Range
0 – 80°C;0.00 – 14 pH
Models #: ST320
MSRP :
$151.00

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Measurement Range
0 – 80°C;0.00 – 14 pH
Models #: ST320 IP67 3m
MSRP :
$194.00

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Measurement Range
0.00 – 14.00 pH
Models #: ST350
MSRP :
$188.00

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Measurement Range
0.00 – 14 pH
Models #: STMICRO5
MSRP :
$269.00

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Measurement Range
0.00 – 14 pH
Models #: STMICRO8
MSRP :
$288.00

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Measurement Range
0.00 – 14 pH
Models #: STPURE
MSRP :
$147.00

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Measurement Range
0.00 – 14 pH
Models #: STSURF
MSRP :
$171.00

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Measurement Range
2.00 – 12.00 pH
Models #: STCON3
MSRP :
$321.00

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Measurement Range
2 µS/cm – 200 mS/cm;0 – 50°C
Models #: STCON3 IP67 3m
MSRP :
$424.00

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Measurement Range
2 µS/cm – 200 mS/cm
Models #: STCON7
MSRP :
$576.00

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Measurement Range
0 – 100°C;0.02 µS/cm – 200 µS/cm
Models #: STDO11
MSRP :
$390.00

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Measurement Range
0 – 200%
Models #: STDO21-1
MSRP :
$1,190.00

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Measurement Range
0.00 – 20.0 mg/L(ppm)
Models #: STDO21-5
MSRP :
$1,216.00

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Measurement Range
0.00 – 20.0 mg/L(ppm)
Models #: STREF1
MSRP :
$156.00

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Models #: STORP1
MSRP :
$100.00

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Measurement Range
-1000 – 1000 mV
Models #: STORP2
MSRP :
$265.00

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Measurement Range
-1000 – 1000 mV
Models #: STTEMP30
MSRP :
$86.00

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Measurement Range
0 – 100°C