LK ¡§C210A Black -white Densimeter Features: This product uses circuits of high-tech products, working with the advantages of accurate measurement, good stability, convenient operation, etc. Parameter: Density range : 0 = 0.00-5.00 Light hole size : Dia 2mm Reading stability : about 0.02 Uncertainty : 0.00-3.00 0.02D, 3.00-4.00 0.04D, 4.00-5.00 0.08D Display form : 3 digits display Sampling time : 0.8s Working environment : 0 ¡§C 40, relative humidity