Hach-Lange PHC101-30 Instruction Sheet - Manual (Page 3)

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Specifications
Specifications are subject to change without notice.
pH Range 2.0 to 14.0 pH
Sodium (Alkalinity) Error –0.6 pH at pH 12.6 in 1 M NaOH
Temperature Range 0.0 to 80.0 ºC
Temperature Accuracy ± 0.3 ºC
Warranty Sensor is covered by a six-month warranty.