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Innovating gas detection, industrial control systems, and specialty chemicals for environmental protection and advanced manufacturing.
Qingdao Lontec Electronic Technology Co., Ltd. is a national high-tech enterprise specializing in the research, development, and manufacturing of gas detection instruments, industrial automation valves, and specialty chemical products.
With a strong focus on innovation and quality, we provide reliable solutions for environmental monitoring, water treatment, fine chemical industries, and industrial safety. Our products are widely used across China and exported globally.
High-performance gas detectors, industrial valves, and specialty chemicals
Fixed or portable models with high detection accuracy and fast response time for ambient ozone monitoring.
Uses UV absorption technology for precise low-level ozone measurement with temperature and pressure compensation.
Designed for industrial ozone generators and high-output applications with stable zero point and minimal drift.
Continuous monitoring system for industrial environments with 4-20mA or 0-10V output options.
Automated flow control valve with electric actuator for precise regulation in pipelines.
Smart pneumatic valve with programmable control logic for industrial automation systems.
High-purity chemical compound used in pharmaceuticals, agrochemicals, and organic synthesis.
Environmentally friendly de-icing and heat transfer fluid with high solubility and low toxicity.
Why customers trust LON-TEC for critical industrial applications
Imported sensors with high precision and stability ensure accurate gas concentration readings across the full measurement range.
Response time under 1 second enables rapid detection of gas leaks and immediate alarm activation to prevent accidents.
Color LCD with pure Chinese interface clearly shows gas concentration, alarm status, and operational data for easy monitoring.
Integrated modular design allows easy access to settings, calibration, and diagnostics. Front-panel LCD simplifies user interaction.
Constructed from high-quality materials with explosion-proof, waterproof, and dustproof features for reliable operation in harsh environments.
Our technical team responds promptly within 24 hours to assist customers with troubleshooting, configuration, and system optimization.
Tailored systems for critical industrial applications
Ideal for water treatment, disinfection, and industrial oxidation processes
Ensures safe and efficient operation in municipal water treatment plants
Supports quality control and safety in chemical synthesis and processing
Our detectors are primarily designed for ozone (O₃) monitoring in various concentrations. We offer models for environmental, low-concentration, high-concentration, and industrial ozone applications.
Yes, Qingdao Lontec is a nationally recognized high-tech enterprise and AAA credit-rated company. Our products meet industrial standards for explosion-proof, waterproof, and dustproof operation in harsh environments.
Our detectors have a response time of less than 1 second, allowing for rapid detection of gas leaks and immediate alarm activation to prevent accidents.
Yes, our technical personnel respond promptly within 24 hours to help customers solve problems. We also offer training and after-sales technical support solutions.
Yes, our fixed gas detecting analyzers offer optional isolated 0-10V and 4-20mA outputs for seamless integration with PLCs, SCADA systems, and other industrial control platforms.
For product inquiries, technical support, or partnership opportunities
Visit the official LON-TEC website for detailed product specifications, documentation, and contact options.
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