A. AC and DC power supply, low power consumption, compact and beautiful appearance design, convenient for field and laboratory use; B. Large-screen high-transparent LCD screen is adopted, which is comfortable to read and is not adversely affected by sunlight; C. Equipped with a highly automated multi-function microcomputer, equipped with an RS232 serial communication interface to connect to the printer. D. The built-in clock memory storage system can store measurement and correction data in real time, and can store and transmit 20 sets of measurement data for a long time, which can be used as a historical reference. E. Quick and automatic correction, self-diagnosis information prompt, fast and stable response, reliable operation and maintenance-free.

Model	WGZ-2B	WGZ-3B	WGZ-4000B
Minimum Principle	90°scattered light
Minimum readout(NTU)	0.001	0.01	0.001
Measuring range(NTU)	0-10 0-100 0-500	0-10 0-100 0-1000	0-10 0-100 0-1000 0-4000
Basic error F.S	6%(2%F.S)
Repeatability	0.5%
Zero draft(NTU)	0.5%F.S
Power supply	DC 1.5V, 5 AA alkaline dry cells AC 220V/50Hz DC7.5V 0.2A power supply adapter