TN420 Portable White Light Turbidity Meter, EPA 180.1 Compliant, Each

Details:

Measurement method; 90° scattering measurement, u.S epa180.1 Compliant, light source; tungsten filament lamp, calibration standard : amco polymer or formazin solution : 0, 20, 100, 400 and 800ntu (fnu), detector; silicon photovoltaic, measuring mode : normal measurement and average measurement, display; tft color screen, sample vial volume; 18 ml, power supply; 3.7V rechargeable lithium battery