Dissolved oxygen meter MW600 Back Catalog number: MW600 Manufacturer: MILWAUKEE ELECTRONICS Availability: In the manufacturer's stock Price on request - + Recommended MW100 pH meter MW100 Price on request PH55 pH/Temp waterproof tester, -2.0 to 16.0 pH Price on request PH600 pH tester with 1 point calibration, ±0.2 pH accura Price on request