For many of us, water is simple toaccess at the turn of a faucet. Wethink little about the silent process thatconsistently delivers it without delay.As the pioneer of fluoride electrodetechnology, the NEW Thermo ScientificOrion 2109XP fluoride monitor is basedon the Standard Test Method forFluoride Ion in Water (ASTM D 1179-04). The Orion 2109XP provides thehighest quality fluoride measurementsfor drinking water required by the SafeDrinking Water Act (1974) to accuratelycontrol between 1.4 to 2.4 ppm.The Orion 2109XP fluoride monitoroffers accuracy, reliability and ease of-use to best meet the demandsfor fluoride analysis with completeassurance. The Orion 2109XPmaximizes uptime and keeps yourplant in perfect operation by offeringunmatched versatility and performance10ppb - 200ppm.-10 to 120 C.% of final reading within 2 minutes of injecting a standard solution.5 to 30C.IP 66 & NEMA 4X