pH55 (pH/Temp waterproof tester Mi5560 Back Catalog number: MI5560 Manufacturer: MILWAUKEE ELECTRONICS Availability: In the manufacturer's stock Price on request - + Recommended ORP57 ORP/Temp waterproof tester ORP57 Price on request MW101 Portable pH meter, 0.00 to 14.00pH, 2point cal. Price on request HI981032 pH Tester for Cheese Price on request