... , oxygen, electrodes, etc KL-099 Waterproof pH/ORP/Temperature Meter Descriptions:PH-099, designed for simultaneous pH and ... is a waterproof pH, ORP and temperature meter. All pH readings are automatically temperature compensated(ATC). Measurements are highly accurate with ... pH Temperature0.1°CAccuracymV±5mV pH±0.1 pH Temperature±1°CTemperature Compensation0 to 50°CElectrodereplaceable pH electrode ( ...