New HI-510-0540 Single Channel Process Controller with digital probe inputs, 5 relays, 4 analogue outputs £1,228.50 (exc. VAT) View Product
New HI-520-0540 Dual Channel Process Controller, 5 relays, 4 analog outputs £1,275.00 (exc. VAT) View Product
BL-122-10 Pool & spa controller with pH/ORP electrode, internet, and complete installation kit View Product