Model: PS-100B、1000B、4000B
Minimum indication (mg/l): 0.1, 1
Measuring range: 0~100 mg/L (ppm), 0~1000mg/L (ppm), 0~4000 mg/L (ppm)
Linear error: ±5％FS
Product features: Portable microcomputer configuration, with average measurement mode, year, month, day and time display, with data storage and query functions, automatic range switching, automatic zero adjustment and automatic calibration at 1 to 5 points, equipped with RS232 data communication interface, can be connected to external micro printer

 
Model: PS-100、1000、4000
Minimum indication (mg/l):0.1, 1
Measuring range: 0~100 mg/L (ppm), 0~1000mg/L (ppm), 0~4000 mg/L (ppm)
Linear error: ±5％FS
Product features: Desktop microcomputer configuration, high precision, multi-point linear automatic correction