HI-7078 0.5M Ammonium Sulphate electrode fill solution, 4 x 30 mL bottles £57.20 (exc. VAT) View Product
HI-9829-10/11 Kit containing 10 sachets of 10ppm and 10 sachets of 100ppm standard for Ammonium ISE £134.80 (exc. VAT) View Product
HI-7609829-10 Spare Ammonium ISE module for HI-7609829/HI-7629829 series of probes £586.00 (exc. VAT) View Product