Combined pH electrode MA920B/1 Back Catalog number: MA920B/1 Manufacturer: MILWAUKEE ELECTRONICS Availability: In the manufacturer's stock Price on request - + Recommended MA911B/2 Double junction pH electrode MA911B/2 Price on request 2814-3ROLL CHEMSOLUTE Universal pH-indicator paper, pH 1-14, 5m x 7mm, Refill pack with 3 rolls Price on request MA916B/3 Combined glass pH electrode, refill, BNC, 3m Price on request