pH/ORP/Temp waterproof tester, -2.00 to 16.00 pH Back Catalog number: PH58 Manufacturer: MILWAUKEE ELECTRONICS Availability: 3 weeks Price on request - + Recommended MW301 Conductivity meter MW301 Price on request CD97 TDS tester with ATC, range: 1 - 999 ppm Price on request TH300 Thermometer TH300 Price on request