Hold Function: Saves measurements in order to read and recorded.
It can be used for: water purifiers and filters, food (vegetables, fruit) and drinks Quality Supervision, swimming pools and spas, aquariums, hydroponics.
Auto-off function: is not used to automatically shut down after 10 minutes, to save battery.
Range: 0-9990ppm Accuracy: + / - 2%.
The most appropriate end-user economic model. With its advanced microprocessor technology, efficient and accurate.