Handheld Multi-parameter Water Quality Analyzer

I. Product Overview

This product is a complete handheld water quality testing system consisting of a handheld main unit, a multi-purpose accessory case and dedicated accessories, designed for fast and flexible on-site multi-parameter water quality analysis. The light, portable main unit integrates a multi-wavelength optical detection system, a touch screen and a data transmission module, and can independently perform rapid colorimetric determination of dozens of parameters including COD, ammonia nitrogen, total phosphorus, total nitrogen and various heavy metals. To close the on-site testing loop, the accessory case contains two key accessories as standard: a high-capacity mobile power supply and a Bluetooth thermal printer. The power supply drives the matching 6-position smart digester so that digestion can be completed where no mains power is available, while the Bluetooth printer supports immediate wireless printing of results, integrating testing and reporting on site. This split design keeps the main unit portable while consolidating professional field laboratory and data output capability in the accessory case.

II. Measuring Principle

The instrument performs quantitative water quality analysis on the principle of multi-wavelength spectrophotometry. The main unit contains a multi-wavelength LED light source system with the analytical wavelength preset for each parameter. The user applies the supplied pre-prepared reagent to develop colour in the sample; parameters that do not require digestion (for example some heavy metals and ammonia nitrogen) can be measured directly with the main unit, while parameters requiring digestion (COD, total phosphorus, total nitrogen and some heavy metals) are first digested at high temperature in the digester, then developed and measured. According to the Lambert-Beer law the main unit automatically matches the stored standard curve and calculates the concentration directly.

III. Applications

Industrial wastewater: influent, process units and outfall monitoring at wastewater treatment stations in electroplating, printing and dyeing, pharmaceutical and food processing plants.
Municipal sewage: influent, biological units, effluent and reuse water inspection at wastewater treatment plants.
Environmental water bodies: rivers, lakes, reservoirs and wetlands, groundwater monitoring wells and private water sources — routine monitoring and pollution screening.
Drinking water safety: drinking water source protection areas, backup sources and rural centralised water supply facilities.
Enforcement and emergency response: surprise sampling at enterprise outfalls, park outfall patrols, on-site screening of sudden water pollution incidents and pollution plume tracking.
Research and teaching: water quality research, process optimisation and on-site testing and data collection for teaching experiments.

IV. Key Features

1. Android-based operating system with an elegant, user-friendly interface.

2. 4.3-inch HD touch screen with visual graphical pages, greatly improving operating efficiency.

3. High-reliability imported LED light source requiring no warm-up and offering long-term stability.

4. 10 mm × 10 mm large-area photocell for high sensitivity and a low detection limit.

5. The instrument offers both transmission (routine parameters) and scattering (turbidity) measuring modes.

6. 16 GB internal memory for more than 10,000 records; an optional Bluetooth printer allows results to be printed on site.

7. Wi-Fi and Bluetooth, plus a USB port for direct high-speed batch upload to a PC.

8. Water-resistant housing; the measuring chamber resists ingress of 0.5 mL of liquid.

9. Standard USB-C 5 V 2.1 A with BC 2.1 charging protocol support — compatible with third-party phone chargers, cables and power banks; intelligent lithium battery charge management allows long periods of mains-powered operation.

10. Bilingual Chinese/English operating system.

V. Technical Parameters

VI. Detection Items (Appendix)