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Extech PH110: ExStik® Refillable pH Meter

Unique pH stick meter with rugged refillable flat surface pH electrode

Now you can test pH on the spot easily and accurately with the ExStik® PH110 Waterproof pH Meter. The durable ExStik® meter features a flat surface refillable electrode for measuring pH in liquids, semi-solids, and solids – no more electrode breakage or clogged junctions. Since you can refill the ExStik® quickly, you won’t need to worry about the shelf life of its electrode. the ExStik® meter is an invaluable tool for measuring the pH in shampoo, body wash, facial cleansers, lotions, creams, and more. Use it to monitor pools and spas, or to measure acidity and alkalinity in soil, skin, and carpeting. It’s valuable in hydroponic gardening or farming. Get important readings in cement, agriculture, fish farming, wastewater, antifreeze recycling, food preparation, cleaning supplies, and manufacturing of paper, pulp, and paint. Comes complete with the refillable pH electrode, a 1.5mL bottle KCI, two reference junctions, two removal tools, a protective cap, a sample cup, four 3V CR-2032 batteries, and a 48 inch (1.2m) neck strap.



  • Refillable pH electrode that can be reused by refilling the reference solution once it depletes
  • Obtains continuous high accuracy using fresh reference solution
  • Fast and easy steps to refill your electrode
  • Eliminates the concern of electrode shelf life
  • 1, 2 or 3 point calibration automatically recognizes buffer solutions. Order pH buffers separately
  • Complete with refillable pH electrode, 1.5mL bottle KCI, 2 reference junctions, 2 removal tools, protective cap, sample cup, four 3V CR-2032 batteries, and 48″ (1.2m) neckstrap


Specifications Range
pH 0.00 to 14.00pH
Temperature 23° to 194°F (-5 to 90°C)
Max Resolution 0.01pH, 0.1°
Basic Accuracy ±0.01pH, ±1.8°F/1°C
Memory 15 readings
Dimensions/ Weight 1.4×6.8×1.6″ (35.6×172.7×40.6mm)/3.8oz (110g)


  • PH4-P – 4pH Buffer Solution (2 Bottles)
  • PH7-P – 7pH Buffer Solution (2 Bottles)
  • PH10-P – 10pH Buffer Solution (2 Bottles)
  • PH103 – Tripak Buffer Pouches (4, 7 and 10pH plus rinse solution)
  • PH115 – ExStik® Replacement Refillable pH Electrode Module
  • PH113 – Filling Solution Kit for ExStik® Refillable pH Electrode Module
  • CA895 – Small Vinyl Carrying Case with Belt Loop
  • EX006 – Weighted Base and Solution Cups Kit
  • EX007 – Spare Sample Solution Cups (24pk)
  • 650470 – Tripak Dry Powder Buffer Capsules (4, 7 and 10pH)


PH110_English Datasheet

PH100_PH110_English User’s Manual

PH110_CE Declaration of Conformity