... Chloride, Cupric, Cyanide, Fluoride, Fluoroborate, Idodide, Lead, Nitrate, Silver/Sulfide, Sodium Models and SpecificationsModelRIB1000pH Range0.00-14.00pHpH ... %ION UnitSame as the standard solutionTemperature Range0.0-99.9°C / 32-212Temperature Resolution0.1°C / ... ±0.5°C / ±0.9Temperature Compensation0.0-99.9°C, Auto/ManualCal RemindingYesMemory500 SetsAmbient Temperature5-45°CDisplayMeter sleeps ...