pH Conductivity TDS Temperature Meters

  • Waterproof
  • Automatic pH calibration at 1 or 2 points; automatic conductivity and TDS calibration.
  • Automatic temperature compensation from 0 to 60°C
  • °C/°F selectable
  • Selectable conductivity/TDS conversion factor.
  • Stability indicator and battery percentage gauge indicating battery strength.
  • All functions are accomplished with only two buttons.
  • Multi-parameter probe housed in rugged plastic sheath with reinforced rubber cable and stainless steel DIN connector.
  • Supplied with probe, 4 AA batteries, and hard carrying case.
    pH Range: 0.00 to 14.00
    Temperature Range: 0.0 to 60.0°C, 32 to 140°F


  • 639-730-20 (HI 1288): compatible with older models
  • 639-730-21 (HI 12883): compatible with newer models

Manufacturer : Hanna Instruments

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pH Conductivity TDS Temperature Meter
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Cat.#DescriptionMfg.#PriceQuantityEstimated Availability
639-730-110 to 3999 ┬ÁS/cm, 0 to 2000 ppmHI 991300$651.00 EA  
Ships within one week
639-730-130 to 19.99 mS/cm, 0 to 10.00 pptHI 991301$651.00 EA  
Ships within one week

Parts & Accessories:

Cat.#DescriptionMfg.#PriceQuantityEstimated Availability
639-730-20Replacement pH/EC/TDS/T Probe *old model*HI 1288$194.25 EA  
Ships within one week


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pH Conductivity TDS Temperature Meter Carrying Case
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