pH testers

Low Cost pH SensorEdaphic Scientific supplies low cost pH testers for a range of applications including scientific research, aquaculture, soils, water quality, wastewater, laboratories, teaching and more. Edaphic Scientific supplies the PICCOLO® model from the world leading manufacturer, Hanna Instruments. Benefits of the PICCOLO® pH testers include:

  • Pre-amplified electrode
  • Narrow, replaceable probe
  • Easy to hold and operate

PICCOLO® is a revolutionary pH meter with a 4-in-1 amplified electrode.

Conventional pH meters are susceptible to the weak, high impedance signal which makes the electrode, connector, cable and meter vulnerable to noise, humidity and dirty environments. PICCOLO® has overcome these problems with a pre-amplified electrode delivering a strong signal to the meter. The interchangeable electrode is inexpensive,  rugged and houses the pH sensor, reference system, temperature sensor and the amplifier module.

PICCOLO® is supplied complete with 90 mm (3.5-) HI 1280 amplified pH electrode, pH 4.01 and pH 7.01 buffer solution sachets, calibration screwdriver, batteries, rugged carrying case and instructions.


PICCOLO® models
  • pH sensorsHI98111 – 90mm length electrode
  • HI98112 – 160mm length electrode
  • HI98113 – 160mm length electrode and temperature readout


  • Range: 1 to 13 pH
  • Resolution: 0.01 pH
  • Accuracy: ±0.01 pH
  • Temperature Compensation: Automatic, 0 to 70°C
  • Calibration: manual, 2 points (solutions provided in kit)
  • Battery: 3 x 1.5V / approx. 100 hours of continuous use
  • Environment: 0 to 50°C; RH max 95%
  • Dimensions: 194 or 265 x 29 x 15 mm including electrode
  • Weight: 70g



PICCOLO pH Tester Manual