Our Company

Chongqing Yuangan Technology Co., Ltd., a High-Tech Enterprise spin-off from the Chongqing Academy of Science and Technology (CQAST), specializes in online water quality monitoring solutions. We provide multi-parameter sensors and IoT-enabled analyzers for drinking water safety management across municipal plants, secondary water supply, water distribution network ,tap water , and swimming pools.

Core Technologies
Our product portfolio includes:

Online sensors: Low-range/Ultra-Low Turbidity, Free Chlorine, Total Chlorine, Chlorine Dioxide, Ozone, pH, Conductivity, Dissolved Oxygen
Online Water Quality Analyzers & Measurement System
Flexible OEM/ODM Capabilities for Online Water Quality Monitoring

R&D Excellence
Powered by CQAST’s Sensor & IoT R&D Center, our Ph.D.-led team has pioneered water quality monitoring technologies since 2010. Key achievements:

20+ national/local R&D projects executed
Patented optical analysis algorithms (12+ granted patents)
Chongqing Science & Technology Progress Award (2nd Class)
Outstanding Product Award by China Instrument and Control Society

Certifications & Recognition

National High-Tech Enterprise (Chongqing)
Specialized & Innovative SME (Chongqing)
ISO 9001 & ISO 14001 Certified
Municipal Top Talent Team designation

Certifications & Awards

Corporate Milestones

2010

Initiated drinking water monitoring R&D with Chongqing Instrumentation Institute

2011

Developed core tech for high-precision, low-cost water sensors

2012

Won Chongqing Key Technology Program funding

2013

Deployed 1st-gen Laser Turbidity Sensor

2014

Secured innovation grant for Multi-Parameter Monitoring System

2015

Operated provincial drinking water safety platform

2016

Launched 2nd-gen Ultra-Low Turbidity Analyzer

2017

Awarded IoT project for secondary water supply monitoring

2018

Founded Yuangan Technology as CQAST spin-off

2019

Released:
3rd-gen Nano-Turbidity Sensor® (0.001 NTU)
Disinfectant sensor R&D program

2020

Won key R&D program for rural water safety

2021

Certified ISO 9001/14001
Named Chongqing Top Innovation Team

2022

Accredited as National High-Tech Enterprise
Commissioned Industry 4.0 Digital Factory

2023

Relocated to Chongqing Industrial Internet Park

2024

Awarded Specialized & Innovative Enterprise
Released Gen-3 Turbidity Sensor Suite

2025

Launched breakthrough products:
2nd-gen Electrochemical Disinfectant Sensors
Pressurized Turbidity Sensor (for pipeline applications)
Multi-Parameter Water Analysis Series
3rd-gen Smart Chlorine/Ozone Analyzer