Water Purity Tester, 0.0 to 99.9mS/cm Back Catalog number: HI 98308 Manufacturer: Hanna Instruments Czech Availability: Currently unavailable Price on request - + Recommended MW100 pH meter MW100 Price on request ORP57 ORP/Temp waterproof tester ORP57 Price on request CD600 TDS tester with ATC, range: 0 - 1990 ppm Price on request