Water Quality Residual Chlorine Meter

The water residual chlorine analyzer detects the free chlorine content in water through the electrode method or the colorimetric method. The electrode method uses the current signal generated by chlorine and the electrode to calculate the concentration, while the colorimetric method involves a reagent reacting with chlorine to produce color, which is measured by an optical sensor. It is used in places such as water treatment plants and swimming pools to monitor disinfection effectiveness.
Selection
When selecting, consider a measurement range covering 0-5 mg/L with an accuracy of ±0.01 mg/L. Choose the electrode method (for continuous monitoring) or the colorimetric method (for portable detection) based on the usage scenario. Ensure it has a temperature compensation function, check if the protection rating is suitable for humid environments, and confirm that the accompanying reagents are stable and easy to store.

Terms

Instruments

Using BNC connector design, equipped with 60mL calibrated solution and residual chlorine regulator, replaceable membrane to extend service life, suitable for water quality monitoring.

$ 309.00

Designed for residual chlorine ElectRode, with a capacity of 250ml, it provides stable calibrating performance, ensures reliable measurement results, and is suitable for a variety of water quality analysis scenarios.

$ 110.00

Designed for residual chlorine ElectRode Reagent, 250ml size, provides stable ionic strength adjustment to ensure fast and accurate ElectRode Response in the measurement process, suitable for various water quality testing environments.

$ 127.00

Iodine Reagent Formula specially designed for residual chlorine ElectRode, 250ml Encasement to meet routine testing needs, with ElectRode can improve Measurement accuracy and Stability, suitable for a variety of water quality environments.

$ 127.00

With high and low turbidity ranges (0.00-9 and 100-1000NTU) and residual chlorine total chlorine measurement (0.00-5 mg/L), using EPA-specific Illuminant, supporting chroma compensation and Automatic calibration, storing 200 sets of data, suitable for a variety of water quality testing scenarios.

$ 2505.00

Simultaneous measurement of residual chlorine, chlorine dioxide, total chlorine and other five paraMeters, resolution of 0.001mg/L, Repeatability 2%, micro-processing technology and high Reliability integrated circuit to ensure long-term stable work.

$ 622.00

Measurement range covers 0~ 5mg/L residual chlorine total chlorine and 0~ 10mg/L chlorine dioxide, support 100 measurements, suitable for water quality testing, easy and fast operation.

$ 128.00

Using micro-processing technology and high Reliability integrated circuit, with data nonlinear processing and smoothing function, fast automatic multi-point correction, Measurement range residual chlorine 0~ 2.5mg/L, chlorine dioxide 0~ 5.0mg/L, Repeatability 2%, to ensure long-term stable work.

$ 428.00

Measurement range 0~ 5mg/L, support 100 measurements, suitable for a variety of water quality analysis instruments, easy to operate and quickly detect residual chlorine content.

$ 114.00

Measurement range 0~ 5mg/L, can carry out 100 measurements, suitable for a variety of water quality analysis instruments, easy to operate quickly detect residual chlorine and total chlorine content.

$ 122.00

8Nm Narrowband Interference filter and LED Illuminant, wavelength accuracy +/- 1nm, support residual chlorine and total chlorine 0.00-5 mg/L Measurement range, built-in reaction Timer and 50 sets of Data storage, with IP67 waterproof performance.

$ 632.00

Simultaneous measurement of turbidity, residual chlorine and total chlorine with EPA custom Illuminant, USEPA 180.1 compliant, automatic range conversion, turbidity Measurement range from 0.00 to 4000 NTU, support for multi-unit display and GLP data management.

$ 3878.00

Measurement range 0~ 5mg/L, support residual chlorine and chlorine dioxide dual paraMeter detection, a single package can complete 100 measurements, supporting special instruments to use convenient and fast.

$ 122.00

It can simultaneously detect 9 paraMeters such as residual chlorine, chlorine dioxide, ammonia nitrogen, etc., with a resolution of 0.001mg/L. It adopts high-intensity long-life Illuminant and micro-processing technology to ensure long-term stable operation.

$ 877.00

With 0.001mg/L high resolution, Measurement range 0~ 10mg/L, microprocessing technology to ensure data accuracy, support custom Linear dispersion calibrating and long-term stable work.

$ 356.00

Articles

Wavelength selection for the determination of sulfate content in water quality using photometric titrator
This article discusses how to select the wavelength when using a photometric titrator to determine the sulfate content in water. The core issue lies in the fact that wavelength selection directly affects the accuracy and anti-interference capability of the detection.
Conductivity meter measures the conductivity of water extract from pulp.
This article introduces the method of measuring the electrical conductivity of pulp water extracts using a conductivity meter. Electrical conductivity reflects the content of soluble ions in pulp, which is used to evaluate washing effectiveness and the impact of water quality.
Practical Application of Spectrophotometer in COD, Ammonia Nitrogen, and Total Phosphorus Determination
This article introduces the practical applications of spectrophotometers in measuring key water quality indicators—Chemical Oxygen Demand (COD), Ammonia Nitrogen, and Total Phosphorus.
How to Choose a Suitable Multi-Parameter Water Quality Analyzer Based on Detection Indicators
When selecting a multi-parameter water quality analyzer, the first step is to clarify the parameters that need to be measured, such as physical, chemical, or biological indicators, because different parameters require different detection principles, measurement ranges, and accuracy levels for the instrument.
How to choose between laboratory benchtop and portable water quality testing instruments
When selecting a water quality analyzer, the primary consideration is whether the testing task is conducted in a laboratory or on-site. Benchtop analyzers are suitable for laboratories, offering high precision, excellent stability, and the ability to handle large sample volumes. Portable analyzers are designed for fieldwork or emergencies, emphasizing rapid results, ease of operation, and strong environmental adaptability.
How can multi-parameter water quality analyzers avoid cross-contamination and improve data accuracy?
This article mainly discusses how to avoid cross-contamination in multi-parameter water quality testing to ensure data accuracy. Cross-contamination refers to the residue from a previous sample affecting the results of the next sample, which may lead to data deviation.
Which is more convenient for water hardness testing: the electrode method or the titration method?
Both electrode method and titration are used to measure water hardness. The choice depends on specific needs: opt for the electrode method for speed, and choose titration for accuracy.
Application of UV-Visible Spectrophotometer in the Detection of Heavy Metals in Water
This article introduces the application of ultraviolet-visible spectrophotometry in the detection of heavy metals in water.