Portable Hand-Held Meter Scroll-Through Functionality Compact & Robust Storage Function The SD series comprises a range of compact, easy-to-use, hand-held instruments for the accurate measurement of pH. With robust housing and fully waterproof (IP67) casing, these testers are the ideal solution for in-situ testing in environmental, industrial or pool & spa applications. The intuitive scroll-bar functionality and backlit display enable the easy measurement and simultaneous display of result, temperature, date/time and other measurement details. Designed and manufactured according to Lovibond® quality standards, the devices are equipped with replaceable electrodes to ensure long-life functionality in the field.