FLAME PHOTO METERSPECIFICATIONSNo. of Filters Na & K (Ca & Li optional)Range Na:0-100, Ca:20-100, K:0-100, Li:10-100ppmSensitivity Na : 5 ppm, Ca : 10 ppm, K: 5 ppm , Li : 10ppmRead out 2 Digit bright LED DisplayAccuracy 2% upto 5% above 40 ppmRepeatability 2CountDetector Silicon Photo diodeFilters Narrow band interference glass filtersNebuliser Black BAKELITE, axial flow typeFlame Sys. LPG and dry oil free airWarm up Time 10 minutes