ZMFD-BH15A Portable digital turbidity meter


The portable turbidity meter combines the scattered light method and the transmitted light method, and uses a near-infrared light source to eliminate chromaticity interference. Two detectors, 90°and 180°, are set in the instrument. The 180°detector receives the transmitted light and the 90°detector receives the scattered light. Measure the ratio of the intensity of scattered light and transmitted light, and calculate the concentration of suspended solids and turbidity in the sample.

Technical parameters

Model No ZMFD-15A
range 0-1000NTU
Accuracy 0.1/1.0NTU
Indication error ≤±1NTU@<10NTU; ≤±10%@≥10NTU
calibration 7-point calibration (optional calibration solution)
Repetitiveness ≤±0.1NTU@<10NTU;≤±1%@≥10NTU
Zero drift ≤±0.1NTU
Working temperature 5 - 40°C
Storage temperature -10 - 55°C
Humidity 0-80%RH
Power lithium battery(Optional dry battery)
Size 170X72X44mm


Portable digital turbidity meter


Turbidity, the turbidity degree of water, is caused by the presence of trace insoluble suspended substances, colloidal substances in water. The measurement unit used in ISO standard is FTU (turbidity unit), which is consistent with NTU (turbidity measurement unit).

Portable Digital Turbidity Meter Features

  • The light source advantage: It adopts near-infrared LED light source with little chroma interference, which conforms to IS07027 standard.
  • Professional testing: Imported polymer turbidity calibration solution, non-toxic and safe. Built-in lens, filter, high-precision optical path structure, accurate and stable measurement results.
  • Waterproof seal: The waterproof design of the USB interface and IP65 protection level are suitable for field applications.
  • Multi-power mode: Supports power management, USB data cable can be charged and used for lithium battery charging.
  • HD LCD screen: OLED full color display with clear data display and high contrast.
  • Beautiful and durable appearance: 5 touch buttons, acrylic protection panel, long service life.
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