RC 35 TECHNICAL SPECIFICATIONS:- Display 3.5 Digit LED. Power Supply 230V ± 10P Hz. Range 0 to 1000 NTU in 2 ranges. Resolution 1 NTU. Accuracy ± 3% FS ± 1 Digit. Sample System 30mm Clear Glass Test Tubes. Light Source 6V - 1Amp. Tungsten Lamp. Detector Photocell/Photodiode. RC36 Display 3.5 Digit LED. Power Supply 230V ± 10P Hz. Range 0 to 200 NTU. Resolution 1 NTU. Accuracy ± 2% FS ± 1 Digit. Sample System 30mm Clear Glass Test Tubes. Light Source 6V - 1Amp. Tungsten Lamp. Detector Photocell/Photodiode