HI-8711 pH Analogue Controller with dual output and self-diagnostic test £961.50 (exc. VAT) View Product
HI-97727-11 Colour of Water (PCU) CAL Check standards for HI-977 photometer £264.00 (exc. VAT) View Product
HI-97734-11 Cal Check Standards for Free and Total Chlorine High Range, HI-977 Photometer series £264.00 (exc. VAT) View Product