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Pocket-size pH / ORP / Temperature Meter

Product code: 
pH58
Price: 
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Features: 
  • Large dual-level LCD that displays pH/ORP and temperature (°C or °F) 
  • Shows readings in an extended range from -2.00 to 16.00 pH or ±1000 mV and simultaneously shows temperature 
  • Stability indicator and Data hold function
  • ATC compensates automatically for temperature function
  • Calibration is performed automatically at 1 or 2 points using standard or NIST buffers
  • The modular design allows easy electrode and battery replacement
Technical Specification: 


pH Range -2.00 to 16.00 pH
mV range ±1000 mV
Temp Range -5.0 to 60.0°C / 23.0 to 140.0°F
pH Resolution 0.01 pH
mV Resolution 1 mV
Temp Resolution 0.1°C / 0.1°F
pH Accuracy ±0.05 pH
mV Accuracy ±2 mV
Temp Accuracy ±0.5°C / ±1°F
pH Typical EMC Deviation ±0.02 pH
mV Typical EMC Deviation ±2 mV
Temp Typical EMC Deviation ±0.3°C / ±0.6°F
pH Calibration automatic for pH, 1 or 2 points, from -5 to 60°C with 2 sets of memorized buffers (pH 4.01, 7.01, 10.01 or 4.01, 6.86, 9.18)
Redox Calibration factory calibrated
Probe Mi58P (replaceable)
Environment -5 to 50°C / 32 to 122°F; max RH 100%
Battery Type 4 x 1.5V; IEC LR44, A76 (included)
Battery Life approx. 250 hours of use
Auto-off after 8 minutes of non-use
Dimensions 200 × dia 38 mm
Weight 100 g
Ordering information: 

pH58 is supplied complete with protective cap, 20 mL pH 4.01 and pH 7.01 sachets of calibration solution, carton box, batteries and instructions.