Series WPH Waterproof Pocket-Size pH Tester

0.01 pH Resolution

The Series WPH Waterproof Pocket-Size pH Testers are designed to accurately take repeatable readings in a variety of applications. The replaceable double junction sensor contains a regressed glass pH bulb to protect against breaking. The large 4 digit display is easy to read and has a resolution of up to 0.01 pH. The Series WPH comes standard with automatic temperature compensation and can be ordered with a dual pH/temperature display.

Product Applications

  • Pools
  • Spas
  • Aquariums
  • Hydroponics
  • Ecology Studies
  • Water and Wastewater Treatment
  • Boiler/Steam Generators
  • Printing and Chemical Industries
  • Sanitation Plants
  • Labs

Models & Ordering

Shipping Information

All shipping times are dependent on product availability at time of shipment.

Although we make every effort to ensure a continuous supply of our products, occasional circumstances may force us to temporarily run out of a product, or have shipping delays. Should this occur, customers will be notified soon after placement of any orders for such products and, if applicable, items will be put on backorder. For orders requiring expedited shipment, our customer service team can be contacted to confirm product availability

Model Description Usually Ships* Price Code Order
Ships: 1-2 Weeks
Price: $150.00
Water-proof pH tester, 0.1 pH accuracy. 1-2 Weeks* $150.00 N Order


WPH-10: -1.0 to 15.0 pH; WPH-20: 0.00 to 14.99 pH; WPH-30: -10.00 to 15.00 pH; Temperature: 0 to 50°C (32 to 122°F).
WPH-10: ±0.1 pH; WPH-20 and WPH-30: ±0.01 pH.
4-digit, 5/16" (8 mm) high LCD.
WPH-10: 0.1 pH; WPH-20 and WPH-30: 0.01 pH.
Ambient Operating Temperature:
0 to 50°C (32 to 122°F).
Power Requirements:
(4) 1.5 V LR44, alkaline batteries, installed functional, user replaceable.
WPH-10: Up to three points USA/NIST buffers (4.0/4.0, 7.0/6.86, 10.0/9.18); WPH-20 & WPH-30: Up to 3 points US/NIST (4.01/4.01, 7.00/6.86, 10.00/9.18).
Enclosure Rating:
Replaceable double junction.
WPH-10: 7.2 oz (200 g); WPH-20 & WPH-30: 4.5 oz (125 g).
Agency Approvals:


Model Number Description Usually Ships* Price Code Order
Replaceable Double Junction Sensor. WPH-RS Replaceable Double Junction Sensor. 1-2 Weeks $91.00 N Order

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