Highly efficient and accurate due to its advanced microprocessor technology.
Auto-Off function conserves battery power. The unit shuts off automatically after 10 minutes of non-use.
Wide Range 0-9990 ppm (From 0 - 999 ppm the resolution is 1 ppm. From 1000 to 9990 ppm, the resolution is 10 ppm,
Description
How Pure is Your Water? HM Digital's SM-1 is a single inline monitor that measures TDS from 0 to 9990 ppm. It includes batteries, a single sensor and one 1/4" quick-connect T-fitting. The SM-1 is an easy and convenient method of determining TDS levels for water filtration/purification systems such as reverse osmosis (RO), deionization (DI), distillation and more. It's very useful for coolers or under-the-sink systems.