Combined pH electrode MA920B/1 Back Catalog number: MA920B/1 Manufacturer: MILWAUKEE ELECTRONICS Availability: In the manufacturer's stock Price on request - + Recommended MI58P pH/ORP/Temp probe for pH58 Price on request MA924B/1 Glass ORP electrode MA924B/1 Price on request MA917B/1 Comb glass pH electrode, DJ, refill, BNC, 1m Price on request