Features Online monitoring of UP water(ultrapure water)resistivity and temperature. ¡ôOnline monitoring for the feed water conductivity prevents the UP Purification Pack from damage by the unqualified ¡°pure water¡± Auto-halt protection when short of feed water; LCD Liquid Crystal Chinese/English display; man-machine dialogue function completely 1,The auto-cleaning setting of UF ultra filtration Pack/UP purification pack(Alternate time:1-99 hours, cleaning time:1-99 seconds) 2,Water producing at quality control.(0-18 M¦¸.cm) 3,Water production at volume control (0.1-99L) 4,Time control at ultra purification water recycle(30-180 seconds) 5,Clock setting(Year/month/day/hour/minute/ second) 6,Language setting.(English / Chinese). Query function from history database: 1,All previous water time / volume(Year/month/day/hour/minute/second); 2,All previous water quality (conductivity / resistivity); 3,Accumulated total quantity of water (L); Alarm warning when the UV ultraviolet lamp is out of order.