pH55 (pH/Temp waterproof tester Mi5560 Back Catalog number: MI5560 Manufacturer: MILWAUKEE ELECTRONICS Availability: In the manufacturer's stock Price on request - + Recommended MW101 Portable pH meter, 0.00 to 14.00pH, 2point cal. Price on request MW402 TDS meter MW402 Price on request PH55 pH/Temp waterproof tester, -2.0 to 16.0 pH Price on request