The SD 50 pH Tester is ideal for field testing in environmental or industrial settings as well as for pool and spa testing! The robust housing is completely waterproof (IP67 rated!) and the intuitive scroll-bar functionality combined with a backlit display enable the easy measurement and…

The SD 60 Redox/ORP Tester is ideal for field testing in environmental or industrial settings as well as for pool and spa testing! The robust housing is completely waterproof (IP67 rated!) and the intuitive scroll-bar functionality combined with a backlit display enable the easy measurement…