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SHENZHEN LONNMETER GROUP is a global technology company of intelligent instrument industry.

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  • Flow Meter

    Flow Meter

    View more solutions designed for precision, reliability and durability. Find more solutions for seamless operation and enhanced productivity.

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  • Density & Concentration Meter

    Density & Concentration Meter

    Select advanced online density and concentration meters for accurate and reliable real-time monitoring.

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  • Viscometer

    Viscometer

    Get perfect solutions for industrial processes in food, cosmetics, chemicals, etc. Measure pasty and viscous liquids with precision.

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  • Level Sensor

    Level Sensor

    Take references to our solutions for optimized processes with cutting-edge level sensors. Contact us a get tailored solutions with your requirements.

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  • Pressure & Level Transmitter

    Pressure & Level Transmitter

    Look through solutions designed for maintaining safety, optimizing processes and manufacturing. Ideal devices for pressure and level measurement.

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  • Thermometer Wholesale

    Thermometer Wholesale

    Lonnmeter, a leading thermometer supplier, is a wholesale seller of indoor and outdoor thermometers. Take references to tailored solutions to elevate your business level.

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why choose us

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Lonnmeter grows into a leading manufacturer of precision measuring devices over the past ten years. We offer end-to-end solutions for flow, density, concentration, viscosity and pressure measurement. Both cutting-edge technology and years of expertise contribute to trustworthy precision.

The Group has committed to innovative research and development to push boundaries tirelessly, ensuring unmatched accuracy, reliability and efficiency. R&D team values innovation, quality and customer satisfaction, elevating your business to a higher level for the future.

Outstanding quality is the cornerstone of long-lasting development and good reputation. All instruments are manufactured to rigorous standards, and quality of all precise instruments have been reviewed in practical cases over the past ten years.

Our service doesn’t stop at the delivery of commodities. It’s a great honour for us to offer sound after-sales support, including but not limited to installation, calibration assistance and technical guide. Besides, extended warranty period gives customers confidences in investments. Long-term commitments guarantee smooth operations and optimized processes.

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Expand your business with with Lonnmeter and elevate it to new heights. Gain access to cutting-edge products, dedicated support and exclusive sales policy now!
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latest news

07/08/2026

Ultrasonic Level Sensor vs Float Level Switch: When to Use Each

Level Measurement: Contact vs Non-Contact Level measurement instruments divide roughly into two groups. Contact instruments touch the liquid. Float switches and conductivity probes are in this group. Non-contact instruments measure the level from above the liquid without touching it. Ultrasonic s...
Inline Density Meter (2)
07/06/2026

Why Density Meters Drift Over Time and How to Minimize It

Drift Happens — The Question Is How Much and Why A density meter that was calibrated last month does not stay calibrated forever. Over time, the reading shifts. That shift is called drift. Some drift is unavoidable. Some drift is preventable. Knowing the difference is what separates a meter that ...
 inline density meter FAQ
07/02/2026

Density Meter FAQ: 15 Questions Engineers Ask Before Buying

We get these questions from engineers every week. Some are about accuracy. Some are about installation. Some are about whether a density meter is even the right instrument for the job. If you are specifying a density meter and have questions, chances are your question is in this list. Q1: What a...
07/08/2026

Ultrasonic Level Sensor vs Float Level Switch: When to Use Each

Level Measurement: Contact vs Non-Contact Level measurement instruments divide roughly into two groups. Contact instruments touch the liquid. Float switches and conductivity probes are in this group. Non-contact instruments measure the level from above the liquid without touching it. Ultrasonic s...
07/06/2026

Why Density Meters Drift Over Time and How to Minimize It

Drift Happens — The Question Is How Much and Why A density meter that was calibrated last month does not stay calibrated forever. Over time, the reading shifts. That shift is called drift. Some drift is unavoidable. Some drift is preventable. Knowing the difference is what separates a meter that ...
07/02/2026

Density Meter FAQ: 15 Questions Engineers Ask Before Buying

We get these questions from engineers every week. Some are about accuracy. Some are about installation. Some are about whether a density meter is even the right instrument for the job. If you are specifying a density meter and have questions, chances are your question is in this list. Q1: What a...