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
滴定范围;0 to 50 mg/L(ppm)NH3-N,滴定精度;读数的5%, 取样量:50 mL