Flame photo meters manufactured by us boast of top-notch quality. Supreme quality raw materials and properly updated technology is utilized for manufacturing them. Durability, longevity, strength, perfect designs are their highlights. Our top notch quality experts, R&D team and engineers, are responsible for developing products, with the latest trend in sight. Range Na : 0-100 ppm, k : 0-100 ppm . Sensitivity sodium (na) : 5 ppm, potassium (k) : 5 ppm . Readout 2 digit bright red led display . Accuracy 2 % up to 40 ppm 5