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OAKTON WD-35634-30 pHTestr 30 Waterproof pH Testr 30 Pocket Tester

Model: pHTestr 30 | Order No: WD-35634-30

This waterproof pocket pH tester floats so that you don't lose it to the bottom of a tank or pond. Easily take pH readings with its large display.

Sale Price $80.12 USD
Regular Price $109.00 USD
Availability 1 in Stock

OAKTON pHTestr 30 Offers

High ±0.01 pH accuracy in a waterproof pocket-sized instrument! This unique Testr display pH and °C readings on a single large display. It also features a double junction electrode ideal for dirty water and solutions with heavy metals or other contaminants. Its waterproof, dustproof housing protects Testr from rugged field or plant environments.


  • High ±0.01 pH accuracy
  • Simultaneous pH and temperature (°C) display
  • Suitable for most ASTM and EPA test procedures
  • Double junction electrode ideal for dirty water, heavy sulfides, tris buffers and organics
  • Increased reference gel volume offers significantly longer electrode life
  • Certifiable to IP67 standards—waterproof and dustproof housing floats
  • Replaceable sensor lets you reuse same meter body, saving you money
  • Automatic temperature compensation
  • Three point push-button calibration


  • Water Quality
  • Process Monitoring

OAKTON pHTestr 30 Specifications

Range -10.00 to 15.00 pH
Resolution 0.01 pH
Accuracy ±0.01 pH
Calibration Up to 3 points US or NIST (4.01, 6.86/7.00, 9.18/10.00)
Electrode Replaceable double junction
Waterproof/Dustproof (IP67) Yes
Operating Temperature 0 to 50°C (32 to 122°F)
Power Source 4 x 1.5 V Batteries
Battery Life Over 500 hours
Dimensions 6.5 x 1.5" Ø (16.5 x 3.8 cm Ø)
Shipping Weight 4.5 oz (125 g)
Click here for complete specifications on the OAKTON pHTestr 30

What's included with the OAKTON pHTestr 30

  • Waterproof Pocket Tester
  • Electrode
  • Detachable Electrode Sensor
  • 4 x 1.5 V Batteries
  • Calibration Buffer Pouches
Waring Laboratory Equipment Supplies

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Customer Reviews for the OAKTON pHTestr 30