Water Analysis Portable Meters

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Versatile and Portable Water Analysis Products for Wherever Your Work Takes You

Convenient, fast and easy to use

Ohaus STARTER series product family welcomes a new member — STARTER 300D, a portable Dissolved Oxygen(DO)
meter. STARTER 300D offers you a multi-function meter with a Galvanic DO electrode for fast and easy measurement.
STARTER 300D is manufactured at world class facilities under ISO 9001, and it meets industry CE requirements.


Click on the product code for specifications and manual

Code Name Measurement Range Resolution Price  
ST300D DO meter ST300D 0.0 to 199.9%; 200 to 400% 0.00 to 19.99; 20.0 to 45.0 mg/L 0.00 to 19.99; 20.0 to 45.0 ppm 0 to 50 °C 0.1%; 1%
0.1 mg|L; 1mg|L
0.01 ppm; 0.1 ppm
0.1 °C
$699.60
ST300D-B DO meter ST300D-B 0.0 to 199.9%; 200 to 400% 0.00 to 19.99; 20.0 to 45.0 mg/L 0.00 to 19.99; 20.0 to 45.0 ppm 0 to 50 °C 0.1%; 1%
0.1 mg|L; 1mg|L
0.01 ppm; 0.1 ppm
0.1 °C
$396.00
ST300D-G ST300D-G 0.0 to 199.9%; 200 to 400% 0.00 to 19.99; 20.0 to 45.0 mg/L 0.00 to 19.99; 20.0 to 45.0 ppm 0 to 50 °C 0.1%; 1%
0.1 mg|L; 1mg|L
0.01 ppm; 0.1 ppm
0.1 °C
$750.20
ST300C ST300C 0.0 μS/cm to 199.9 mS/cm 0.1 mg/l to 199.9 g/l (TDS) 0 °C to 100 °C 0.01 μS/cm;0.1 mg/L;0.1 °C $509.30
ST300C-B ST300C-B 0.0 μS/cm to 199.9 mS/cm 0.1 mg/l to 199.9 g/l (TDS) 0 °C to 100 °C 0.01 μS/cm;0.1 mg/L;0.1 °C $410.30
ST300C-G ST300C-G 0.0 μS/cm to 199.9 mS/cm 0.1 mg/l to 199.9 g/l (TDS) 0 °C to 100 °C 0.01 μS/cm;0.1 mg/L;0.1 °C $540.10
83033961 ST300 0.00 to 14.00 pH –1999 to 1999 mV 0 °C to 100 °C 0.01 pH 1 mV 0.1°C $444.40
30219114 ST300-G 0.00 to 14.00 pH –1999 to 1999 mV 0 °C to 100 °C 0.01 pH 1 mV 0.1°C $465.30
83033962 ST300-B 0.00 to 14.00 pH –1999 to 1999 mV 0 °C to 100 °C 0.01 pH 1 mV 0.1°C $335.50
ST400-B ST400-B -1999 – 1999 mV;-2.00 – 16.00 pH;-5 °C – 110 °C 0.01 pH;1 mV;0.1 °C $511.50
ST400-F ST400-F -1999 – 1999 mV;-2.00 – 16.00 pH;-5 °C – 110 °C 0.01 pH;1 mV;0.1 °C $592.90
ST400-G ST400-G -1999 – 1999 mV;-2.00 – 16.00 pH;-5 °C – 110 °C 0.01 pH;1 mV;0.1 °C $625.90
ST400M-B ST400M-B -2.00 – 16.00 pH;-1999 – 1999 mV;00.0 μS/cm – 199.9 mS/cm;0.1 mg/L – 199.9 g/L (TDS);0-99.9 psu;0-20 MΩ•cm;-5 °C – 110 °C 0.01 pH;1 mV;0.1 μs/cm;0.01 mg/L;0.01 psu;0.01 Ω•cm;0.1 °C $790.90
ST400M-F ST400M-F -2.00 – 16.00 pH;-1999 – 1999 mV;00.0 μS/cm – 199.9 mS/cm;0.1 mg/L – 199.9 g/L (TDS);0-99.9 psu;0-20 MΩ•cm;-5 °C – 110 °C 0.01 pH;1 mV;0.1 μs/cm;0.01 mg/L;0.01 psu;0.01 Ω•cm;0.1 °C $984.50
ST400M-G ST400M-G -2.00 – 16.00 pH;-1999 – 1999 mV;00.0 μS/cm – 199.9 mS/cm;0.1 mg/L – 199.9 g/L (TDS);0-99.9 psu;0-20 MΩ•cm;-5 °C – 110 °C 0.01 pH;1 mV;0.1 μs/cm;0.01 mg/L;0.01 psu;0.01 Ω•cm;0.1 °C $1018.60