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    0-400 NTU Benchtop Turbidity Meter, Accuracy 0.1

    The high-precision benchtop turbidity meter is made of durable materials, with a measurement range of 0-400 NTU and an accuracy of 0.1 level. It can withstand harsh field conditions. This compact benchtop turbidimeter is equipped with a backlight LCD display, a stable circuit system, and an efficient and long-lasting light source, which can effectively improve the accuracy of test results.
    SKU: ATO-BTM-400A
    30-day Returns
    Free Shipping
    Delivery date: 6-12 days

    Digital turbidity meter with backlight display, and RS232 interface, can be seamlessly integrated with other equipment and software platforms. Benchtop turbidimeters provide precise and accurate measurements, ensuring reliable and repeatable results every time.


    • Model: ATO-SGZ-400A
    • Measurement Principle: 90° scattered light
    • Measurement Range: 0-400 NTU
    • Measurement Accuracy: 0.01
    • Stability: ±1.5% (F.S 30min)
    • Zero Drift: ±1.5% (F.S 30min)
    • Repeatability (Linearity Error): ≤2%
    • Value Error (Basic Error): ±6%


    • The portable turbidity meter with blue backlit LCD display makes reading more comfortable.
    • Users can choose different turbidity units (NTU, EBC, ASBC) according to their specific needs.
    • Digital turbidity meter measuring range 0-400 NTU, accuracy 0.1.
    • High precision optical circuit system ensures correct and repeatable measurement.
    • Stable circuit system and efficient long-life light source ensure the digital water turbidity meter works stably for a long time.
    • The handheld turbidity meter has a low voltage indication function to remind users to replace the battery in time.


    Turbidity meters are widely used in various fields for measuring and monitoring suspended particles or sediment levels in liquids. Additionally, turbidity meters are employed in industries such as food and beverage, pharmaceuticals, and wastewater treatment to ensure product quality and process control.

    Turbidity meter applications

    Tips: How to calibrate a turbidity meter?

    To calibrate a turbidity meter, follow these general steps:

    1. Gather the necessary materials: You will need a calibration standard solution of a known turbidity value, distilled water, a clean container, and the turbidity meter.
    2. Prepare the calibration standard: Ensure that the calibration standard solution is within its expiration date and has not been contaminated. If required, follow the instructions provided with the calibration standard to prepare the solution.
    3. Clean the meter: Clean the turbidity meter's measurement cell or cuvette thoroughly to remove any residue or previous sample remnants. Use distilled water and a lint-free cloth to wipe the measurement cell.
    4. Set up the meter: Ensure that the turbidity meter is properly set up and ready for calibration. Follow the manufacturer's instructions for any specific requirements or settings.
    5. Zero calibration: If your turbidity meter has a zero calibration feature, it is important to perform this step first. Fill a clean container with distilled water and place it in the measurement cell of the turbidity meter. Perform the zero calibration according to the manufacturer's instructions.
    6. Calibration process: After the zero calibration, remove the distilled water and fill the clean container with the calibration standard solution of known turbidity value. Place the container in the measurement cell.
    7. Adjust and verify: Follow the manufacturer's instructions to adjust the turbidity meter's settings to match the known turbidity value of the calibration standard solution. This typically involves adjusting the meter's readings to the specified value of the calibration standard.
    8. Repeat if necessary: If the adjusted reading does not match the known turbidity value, repeat the calibration process using a fresh sample of the calibration standard solution. Ensure that the measurement cell and all components are clean before repeating the calibration.
    9. Final verification: Once you have successfully adjusted the turbidity meter to match the known turbidity value of the calibration standard solution, verify the meter's readings with other calibration standards if available or with samples of known turbidity values to ensure accuracy.
    10. Record the calibration: Keep a record of the calibration process, including the date, calibration standards used, adjustments made, and any other relevant information. This documentation will help maintain a calibration history for the turbidity meter.

    Remember to consult the user manual or guidelines provided by the manufacturer of your specific turbidity meter, as the calibration process may vary slightly depending on the model and brand.

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