量程:0.00 to 0.80 mg/L N ,解析度:0.01mg/L
量程:0.00 to 1.00 mg/L N,解析度:0.01mg/L
量程:0.00 to 1.00 mg/L NH4;0.0 to 10.0 mg/L NH4; 解析度:0.01 mg/L,0.1 mg/L