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pH

Ion

ORP

Temperature

Temperature Compensation

Portable pH Meter

The pH scale, which commonly spans from 0 to 14, plays a crucial role in determining the acidity or alkalinity of a solution. To attain precise pH measurements, it is imperative to consider the impact of temperature on pH values. Consequently, temperature compensation becomes an indispensable feature in any pH Meter. The Nernst equation, a fundamental formula in pH measurement, elucidates the direct correlation between temperature and pH values. As temperature rises or falls, pH readings can fluctuate, potentially leading to inaccuracies in assessments of a solution's acidity or alkalinity. Therefore, pH meters are equipped with temperature compensation mechanisms to counteract these temperature-induced variations and provide dependable pH measurements under diverse thermal conditions.

Portable pH Meter LMPH-401

  • pH: -2.00 - 20.00 pH, 0.01pH, , 1 to 3 points, USA (4.01/7.00/10.01), NIST (4.01/6.86/9.18)
  • ORP: ±1999mV, 1 mV, ±1 mV
  • Temperature: 0 - 105°C/32 - 221°F, 0.1°C/0.1°F, ±0.5°C/±0.9°F, 1 point, reading ±10°C
  • Temperature Compensation: 0 - 100°C, manual or automatic
  • Slope/Offset Display: Yes

Portable pH Meter LMPH-403

  • pH: -2.000 - 20.000 pH, 0.001, 0.01, 0.1pH, selectable, ±0.002pH, 1 to 5 points, USA, NIST, DIN, 2 custom buffers
  • Ion: 0.001~19999 (depending on the range of ISE), 0.001, 0.01, 0.1, 1, ±0.5% F.S. (monovalent), ±1% F.S. (divalent), ppm, mg/L, mol/L, mmol/L, 2 to 5 points, 0.001, 0.01, 0.1, 1, 10, 100, 1000, 10000
  • ORP: ±1999.9mV, ±1999.9mV, 0.1, 1mV, selectable, ±0.2mV, 1 point
  • Temperature: 0 - 105°C/32 - 221°F, 0.1°C/0.1°F, ±0.5°C/±0.9°F, 1 point, reading ±10°C
  • Temperature Compensation: 0 - 100°C, manual or automatic
Portable pH Meter LMPH-402
  • pH: -2.00 - 20.000 pH, 0.001, 0.01, 0.1pH, selectable, ±0.002pH, 1 to 5 points, USA, NIST, DIN, 2 custom buffers
  • ORP: ±1999.9mV, ±1999.9mV, 0.1, 1mV, selectable, ±0.2mV, 1 point
  • Temperature: 0 - 105°C/32 - 221°F, 0.1°C/0.1°F, ±0.5°C/±0.9°F, 1 point, reading ±10°C
  • Temperature Compensation: 0~100°C, manual or automatic
  • Stability Criteria: Low or high