Quick view Compare OHAUS OHAUS ST260 2 in 1 pH electrode, Glass Shaft, Double Salt-Bridge, for Tris-buffer pH Measurements Was: Now: $172.66 Add to Cart
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Quick view Compare OHAUS OHAUS STDO11 Electrode, Galvanic (DO) probe, plastic shaft Was: Now: $402.02 Add to Cart
Quick view Compare OHAUS pH Buffer Powder Sachet Set, pH 4.01, 7.00, 10.01 Was: Now: $28.52 Add to Cart