The NEXT control and dosing unit is specifically designed for the automatic control of the ORP level (RedOx potential, reading in mV). It is the simplest unit on the market, with a reduced size, which incorporates all the necessary components for a correct installation.
/Swimming Pool Accessories/PH regulation and dosing pumps
https://www.piscinayspa.com/se/pool-accessories/165/ph-regulation-and-dosing-pumps/9311/redox-basic-ev-next-astralpool/FS9311Redox Basic EV Next Astralpoolhttps://www.piscinayspa.com/fotos/productos/redox-basic-ev-next-astralpool.jpg334.00334.00InStockAstralpoolSwimming Pool Accessories/PH regulation and dosing pumps/Astralpool5