Your Professional Liquid Level Sensor Supplier
Hongnuo (shenyang) General Machinery Co., Ltd. is an international, professional, and technology-driven manufacturer of intelligent fluid equipment. Integrating research, production, and sales, we are committed to innovation in intelligent fluid measurement and control.
Why Choose Us
Our Certificate
Certified to GB/T19001-2016/ISO 9001:2015 Quality System Standard,Meanwhile, the company's products have successively obtained professional certifications such as ATEX, CE, SIL, and others both domestically and internationally.The company attaches great importance to patent application and management, sets patent objectives, and supervises and manages them.
Cutting-Edge Smart Fluid Technology
Honno leads the industry with innovative, intelligent fluid measurement and control solutions. By integrating R&D, production, and sales, we continuously develop high-performance products that improve water efficiency, energy conservation, and environmental management, positioning us as a pioneer in smart industrial technologies.
Global Market Expertise & Compliance
With strong presence in Europe, North America, Asia, and Africa, Honno delivers tailored solutions that meet rigorous international standards such as CE and SIL. Our extensive global experience ensures reliable product performance and seamless market entry, supporting clients across diverse industries with customized, cost-effective solutions.
Comprehensive 24/7 Service & Support
Honno provides a robust end-to-end service system, including pre-sales consultation, rapid mid-sales fulfillment, and proactive after-sales support. Clients benefit from fast response times, remote or on-site guidance, spare parts availability, and lifetime technical assistance, ensuring uninterrupted operations and maximum system efficiency.
Liquid Level Sensor Specifications
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Range |
0…1…200mH2O |
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Pressure form gauge pressure |
Gauge pressure (G); Sealed gauge pressure (S); Absolute pressure (A) |
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Output signal |
4…20mA;0.5…4.5VDC;0…10VDC;IIC;RS485;SDI-12 |
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power supply |
8…30V DC;5…8VDC;6VDC;24VDC;12VDC |
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Accuracy level |
0.1 |
0.2(0.25) |
0.5 |
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Nonlinear Repeatability |
0.1 |
0.2(0.25) |
0.5 |
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Zero drift |
0.01 |
0.02(0.025) |
0.05 |
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Sensitivity drift |
0.01 |
0.02(0.025) |
0.05 |
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Compensation temperature |
0…50℃; -10…70℃ |
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Working temperature |
-20~+85℃ |
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Storage temperature |
-40~+125℃ |
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Long term stability |
≤ 0.2 ±% FS/year; ≤ 0.5 ±% FS/year |
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Response time |
<1ms |
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Overload capacity |
200% |
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Load resistance |
R=(U-12.5)/0.02-RD |
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Measurement medium |
Corrosive media compatible with 316L |
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Membrane material |
316L;Tantalum;C-276;TC4;Al2O3;sputtered thin film |
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Shell material |
304SS;316L;TC4;PTFE;PVDF |
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Electrical interface |
Direct outgoing line |
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Process interface |
// |
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Protection level |
IP68 |
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Explosion proof grade |
Ex ia II CT6 optional |
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Feature: 316L Stainless Steel Housing
Advantage: Corrosion-resistant, suitable for drinking water and sewage environments
Benefit: Ensures long service life and low maintenance costs
Feature: Multiple Signal Output Options (4-20mA / RS485 / Modbus)
Advantage: Compatible with mainstream PLCs and control systems
Benefit: Easy integration into existing industrial automation
Feature: Fully Sealed IP68 Waterproof Structure
Advantage: Designed for long-term submersion in tanks and wells
Benefit: Reduces failure rates and avoids signal instability
Feature: Flexible Range Customization (0m to 2m)(2m-300m)
Advantage: Wide adaptability for different tank depths and borehole projects
Benefit: Reduces over-specification and procurement waste

Type
Float Level Sensors
It consists of a magnetic float, a measuring conduit, a signaling unit, an electronic unit, a junction box and mounting parts.Generally the specific gravity of the magnetic float is less than 0.5, it can float on the liquid surface and move up and down along the measuring conduit.
Float Level Sensor
Float Level Sensor is a magnetic float to float, float level sensor is the use of tiny metal film strain sensing technology to measure the liquid level, boundary level or density.
Hydrostatic Level Sensor
Hydrostatic Level Sensor is the use of explosion-proof flow meter liquid static pressure measurement principle.General selection of silicon pressure sensor will measure the pressure converted to electrical signals, and then amplified by the amplifier circuit and compensation circuit compensation, and finally to 4 ~ 20ma or 0 ~ 10ma current output.
Applications
Water Treatment
Monitor water levels in tanks and reservoirs, ensuring optimal treatment processes.
Chemical Processing
Measure levels of corrosive chemicals, ensuring safe and efficient operations. These sensors are designed to withstand aggressive media, ensuring safe and efficient operations in environments with corrosive substances.
Oil and Gas
Track oil levels in storage tanks, preventing spills and ensuring inventory control.
Food and Beverage
Maintain liquid levels in production processes, ensuring product quality and consistency.
Our Services
The production cycle for small and medium orders is 3-7 working days, and for large orders, it can be negotiated according to the specific quantity. We cooperate with international logistics channels to deliver goods to all parts of the world, ensuring on-time delivery and stable logistics.
We provide one-stop services including product consultation, technical support, after-sales maintenance and customization services.
We support OEM/ODM customization services, including product appearance, specifications, measurement range and other aspects of customization, to meet the personalized needs of different customers.
Certification




FAQ
Hongnuo (shenyang) General Machinery Co., Ltd. is one of the most experienced liquid level sensor manufacturers and suppliers in China, also supports customized service. Please feel free to buy high quality liquid level sensor at competitive price from our factory.
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