Developed by our company, the Hexavalent Chromium Automatic Online Water Quality Analyzer is a new-generation fully automatic online water quality monitoring device independently researched and developed. Integrating cutting-edge domestic and international instrument manufacturing technologies, it complies with the national industry standard HJ609-2011 Technical Requirements for Online Automatic Monitoring Instruments of Hexavalent Chromium in Water Quality. Adopting the national standard method 1,5-Diphenylcarbazide Spectrophotometry as the detection principle and dual optical path detection technology, the instrument can rapidly, accurately, conveniently and cost-effectively measure the concentration of hexavalent chromium in water.

The PhotoTek 6000 Permanganate Index Automatic Online Water Quality Monitor is designed for permanganate index monitoring in various water bodies, including surface water, source water and drinking water. It is an online automatic monitoring instrument capable of continuous online monitoring, analysis, real-time data reading, storage and data uploading.

The PhotoTek 6000 Residual (Total) Chlorine Water Quality Analyzer is a new intelligent water quality monitoring product launched by Shenzhen Lonstone. Based on dual optical path detection technology, it adopts N,N-diethyl-1,4-phenylenediamine (DPD) spectrophotometry as the detection principle. It can quickly, accurately and cost-effectively measure the concentration of residual chlorine and total chlorine in drinking water, industrial wastewater, medical wastewater and industrial circulating cooling water.

As the world’s first total mercury water quality analyzer developed based on laboratory-grade methods, this monitor adopts cold atomic absorption method for measurement. Free from chroma and turbidity interference, it delivers highly reliable monitoring results. It is equipped with a 10.4-inch ultra-large touch screen and comprehensive user authority management. The unique micro-dosing technology ensures high reliability and safe operation. Featuring a simplified structure and intelligent one-click operation, it requires minimal maintenance. The system realizes intelligent management of reagents and consumables, together with automatic fault diagnosis and alarm reminder. With compact size and high integration, the device is easy to transport and install. Powerful software functions support flexible measurement modes tailored to actual water quality conditions, effectively cutting O&M costs, and daily maintenance can be completed within 5 minutes. Adopting platform-based and modular design, it enables agile after-sales service with on-site issues resolved within 2 hours. The WeChat mini-program “Water Quality Cloud” supports remote diagnosis and remote O&M, and QR code fault reporting via WeChat makes after-sales service more accurate and efficient.

The high-chloride COD automatic online water quality analyzer is a dedicated product independently developed by Lonstone, specially designed for wastewater from high-chloride industries and seawater. Its maximum tolerance for chloride ions reaches 100,000 mg/L, enabling accurate measurement of water samples with high chloride content and low COD concentration.

This product is a toxicity monitoring and analysis system based on microbial sensing technology. Its core principle is as follows: when luminescent bacteria come into contact with toxic substances in water, their metabolic processes are inhibited or stimulated, and their luminous intensity is negatively correlated with toxicity level. This enables qualitative and semi-quantitative detection of toxicity in water samples. The instrument realizes rapid early warning by dynamically and real-time analyzing toxicity monitoring curves.