... 2. Use MCF unit 3. Micro computer control, RS232 connector. Germ Turbidity meter Characters:1. Nice outlook design, easy using, competitive ... --40 centigrade.Output Signal 4--20mA ( 0--10mA choice)CharactersOn line continuously monitor, auto reduce bubbles, high strength light system, good ... signal output;Have equipped with: bubble reducer, transducer, display screen. Germ Turbidity Meter WGZ-XJ