"Our job is helping you do your job"

Helping You Get The Results You Can Trust

FREE SHIPPING ON ONLINE ORDERS OVER $99*

ph/ORP/ISE

Find a wide selection of pH and ORP meters for testing water conditioning, aquariums, wastewater monitoring or even beverage production. Features include datalogging functions along with NIST certified meters.

Showing 261 to 280 of 296 products

OHAUS ST10R Starter ORP Pen Meter, -1000 to 1000 mV, 2 mV accuracy-

OHAUS ST10R Starter ORP Pen Meter, -1000 to 1000 mV, 2 mV accuracy
Model: ST10R | Order No: 30073984

Sale Price $102.46 USD
Regular Price $178.00 USD
Availability 2 to 3 Weeks

Qty:

Sale Price $102.46 USD
Regular Price $178.00 USD
Availability 2 to 3 Weeks
Quantity

OHAUS ST10S Starter Salinity Pen Meter, 0.0 to 10.0 ppt, ±2.5% FS-

OHAUS ST10S Starter Salinity Pen Meter, 0.0 to 10.0 ppt, ±2.5% FS
Model: ST10S | Order No: 30073982

Sale Price $62.98 USD
Regular Price $109.00 USD
Availability 2 to 3 Weeks

Qty:

Sale Price $62.98 USD
Regular Price $109.00 USD
Availability 2 to 3 Weeks
Quantity

OHAUS ST10T-A Starter TDS Pen Meter, 0.0 to 100.0 mg/L, ±2.5% FS-

OHAUS ST10T-A Starter TDS Pen Meter, 0.0 to 100.0 mg/L, ±2.5% FS
Model: ST10T-A | Order No: 30073978

Sale Price $71.44 USD
Regular Price $123.00 USD
Availability 2 to 3 Weeks

Qty:

Sale Price $71.44 USD
Regular Price $123.00 USD
Availability 2 to 3 Weeks
Quantity

OHAUS ST10T-B Starter TDS Pen Meter, 0 to 1000 mg/L, ±2.5% FS-

OHAUS ST10T-B Starter TDS Pen Meter, 0 to 1000 mg/L, ±2.5% FS
Model: ST10T-B | Order No: 30073979

Sale Price $71.44 USD
Regular Price $123.00 USD
Availability 2 to 3 Weeks

Qty:

Sale Price $71.44 USD
Regular Price $123.00 USD
Availability 2 to 3 Weeks
Quantity

OHAUS ST20 Starter pH Pen Meter, 0.00 to 14.00 pH, 0.1 pH accuracy-

OHAUS ST20 Starter pH Pen Meter, 0.00 to 14.00 pH, 0.1 pH accuracy
Model: ST20 | Order No: 30073971

Sale Price $81.78 USD
Regular Price $142.00 USD
Availability 3 to 4 Weeks

Qty:

Sale Price $81.78 USD
Regular Price $142.00 USD
Availability 3 to 4 Weeks
Quantity

OHAUS ST20C-A Starter Conductivity Pen Meter, 0.0 to 199.9 µS/cm, ±1.5% FS-

OHAUS ST20C-A Starter Conductivity Pen Meter, 0.0 to 199.9 µS/cm, ±1.5% FS
Model: ST20C-A | Order No: 30073975

Sale Price $92.12 USD
Regular Price $159.00 USD
Availability 5 Days

Qty:

Sale Price $92.12 USD
Regular Price $159.00 USD
Availability 5 Days
Quantity

OHAUS ST20C-B Starter Conductivity Pen Meter, 0 to 1999 µS/cm, ±1.5% FS-

OHAUS ST20C-B Starter Conductivity Pen Meter, 0 to 1999 µS/cm, ±1.5% FS
Model: ST20C-B | Order No: 30073976

Sale Price $92.12 USD
Regular Price $159.00 USD
Availability 2 to 3 Weeks

Qty:

Sale Price $92.12 USD
Regular Price $159.00 USD
Availability 2 to 3 Weeks
Quantity

OHAUS ST20C-C Starter Conductivity Pen Meter, 0.00 to 19.99 mS/cm, ±1.5% FS-

OHAUS ST20C-C Starter Conductivity Pen Meter, 0.00 to 19.99 mS/cm, ±1.5% FS
Model: ST20C-C | Order No: 30073977

Sale Price $92.12 USD
Regular Price $159.00 USD
Availability 2 to 3 Weeks

Qty:

Sale Price $92.12 USD
Regular Price $159.00 USD
Availability 2 to 3 Weeks
Quantity

OHAUS ST20D Starter Dissolved Oxygen Pen Meter, 0.0 to 19.9 mg/L, ±0.5 mg/L-

OHAUS ST20D Starter Dissolved Oxygen Pen Meter, 0.0 to 19.9 mg/L, ±0.5 mg/L
Model: ST20D | Order No: 30073986

Sale Price $318.66 USD
Regular Price $553.00 USD
Availability 2 to 3 Weeks

Qty:

Sale Price $318.66 USD
Regular Price $553.00 USD
Availability 2 to 3 Weeks
Quantity

OHAUS ST20M-B Multiparameter Starter Pen Meter-

OHAUS ST20M-B Multiparameter Starter Pen Meter
Model: ST20M-B | Order No: 30393199

Sale Price $104.34 USD
Regular Price $181.00 USD
Availability 4 to 5 Weeks

Qty:

Sale Price $104.34 USD
Regular Price $181.00 USD
Availability 4 to 5 Weeks
Quantity

OHAUS ST20R Starter ORP Pen Meter, -1000 to 1000 mV, 2 mV.-

OHAUS ST20R Starter ORP Pen Meter, -1000 to 1000 mV, 2 mV.
Model: ST20R | Order No: 30073985

Sale Price $137.24 USD
Regular Price $238.00 USD
Availability 2 to 3 Weeks

Qty:

Sale Price $137.24 USD
Regular Price $238.00 USD
Availability 2 to 3 Weeks
Quantity

OHAUS ST20S Starter Salinity Pen Meter, 0.0 to 80.0 ppt, ±1.5% FS-

OHAUS ST20S Starter Salinity Pen Meter, 0.0 to 80.0 ppt, ±1.5% FS
Model: ST20S | Order No: 30073983

Sale Price $92.12 USD
Regular Price $159.00 USD
Availability 3 Days

Qty:

Sale Price $92.12 USD
Regular Price $159.00 USD
Availability 3 Days
Quantity

OHAUS ST20T-A Starter TDS Pen Meter, 0.0 to 100.0 mg/L, ±1.5% FS-

OHAUS ST20T-A Starter TDS Pen Meter, 0.0 to 100.0 mg/L, ±1.5% FS
Model: ST20T-A | Order No: 30073980

Sale Price $92.12 USD
Regular Price $159.00 USD
Availability 2 to 3 Weeks

Qty:

Sale Price $92.12 USD
Regular Price $159.00 USD
Availability 2 to 3 Weeks
Quantity

OHAUS ST20T-B Starter TDS Pen Meter, 0 to 1000 mg/L, ±1.5% FS-

OHAUS ST20T-B Starter TDS Pen Meter, 0 to 1000 mg/L, ±1.5% FS
Model: ST20T-B | Order No: 30073981

Sale Price $92.12 USD
Regular Price $159.00 USD
Availability 3 Days

Qty:

Sale Price $92.12 USD
Regular Price $159.00 USD
Availability 3 Days
Quantity

OHAUS ST2200-B Starter pH Meter, 0.00 to 14.00 pH-

OHAUS ST2200-B Starter pH Meter, 0.00 to 14.00 pH
Model: ST2200-B | Order No: 30656033

Sale Price $270.72 USD
Regular Price $427.00 USD
Availability 4 to 5 Weeks

Qty:

Sale Price $270.72 USD
Regular Price $427.00 USD
Availability 4 to 5 Weeks
Quantity

OHAUS ST2200-F Starter pH Meter with pH buffer mini kits, 0.00 to 14.00 pH-

OHAUS ST2200-F Starter pH Meter with pH buffer mini kits, 0.00 to 14.00 pH
Model: ST2200-F | Order No: 30655944

Sale Price $306.44 USD
Regular Price $484.00 USD
Availability 1 to 2 Weeks

Qty:

Sale Price $306.44 USD
Regular Price $484.00 USD
Availability 1 to 2 Weeks
Quantity

OHAUS ST280 pH Electrode, glass, 0.00 to 14 pH-

OHAUS ST280 pH Electrode, glass, 0.00 to 14 pH
Model: ST280 | Order No: 30681114

Sale Price $217.14 USD
Regular Price $342.00 USD
Availability 2 to 3 Weeks

Qty:

Sale Price $217.14 USD
Regular Price $342.00 USD
Availability 2 to 3 Weeks
Quantity

Ohaus ST300 Portable pH Meter, 0 to 14 pH, 0 to 100°C-

Ohaus ST300 Portable pH Meter, 0 to 14 pH, 0 to 100°C
Model: ST300 | Order No: 83033961

Sale Price $381.64 USD
Regular Price $603.00 USD
Availability 3 to 4 Weeks

Qty:

Sale Price $381.64 USD
Regular Price $603.00 USD
Availability 3 to 4 Weeks
Quantity

Ohaus ST300-G Portable pH Meter, 0 to 14 pH, 0 to 100°C-

Ohaus ST300-G Portable pH Meter, 0 to 14 pH, 0 to 100°C
Model: ST300-G | Order No: 30219114

Sale Price $399.50 USD
Regular Price $631.00 USD
Availability 2 to 3 Weeks

Qty:

Sale Price $399.50 USD
Regular Price $631.00 USD
Availability 2 to 3 Weeks
Quantity

OHAUS ST322 pH Electrode, plastic, 0.00 to 14 pH-

OHAUS ST322 pH Electrode, plastic, 0.00 to 14 pH
Model: ST322 | Order No: 30681113

Sale Price $118.44 USD
Regular Price $187.00 USD
Availability 1 to 2 Weeks

Qty:

Sale Price $118.44 USD
Regular Price $187.00 USD
Availability 1 to 2 Weeks
Quantity
Showing 261 to 280 of 296 products
Baker B3050 pH Roll
We Ship Free on Orders Over $99 within Canada
  • We accept these payment methods:
  • Visa, Master Card, Discover, American Express & PayPal
  • We also accept wire transfers/EFT, cheques and purchase orders on approved credit. Accepted payment methods vary by country.