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Precision Industrial
Instrumentation

High-performance pressure transmitters, flow meters, level sensors, and automation systems for global industrial applications.

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About Yantai Auto Instrument

YANTAI AUTO INSTRUMENT MAKING CO., LTD. is located in Yantai, a scenic seaside city in Shandong Province, China, renowned for its natural beauty and convenient transportation. We are a leading manufacturer specializing in the development, production, and marketing of process control instruments with full capabilities in automatic system engineering.

With years of innovation and industry expertise, we have expanded our capabilities to include a dedicated casting department, ensuring complete control over quality and performance. Our mission is to deliver reliable, accurate, and durable instrumentation solutions for demanding industrial environments worldwide.

Industrial Expertise

Global presence in automation & control

Certified Quality

ISO & industry-standard compliance

Factory and instrumentation

Trusted by engineers in over 50 countries

Our Product Range

From pressure transmitters to flow meters and level sensors, our comprehensive portfolio delivers precision, durability, and reliability across critical industrial processes.

AT3051 Differential Pressure Transmitter

AT3051 Differential Pressure Transmitter

High-accuracy DP transmitter for liquid, gas, and steam flow measurement with stable performance in harsh environments.

  • • 0.075% accuracy
  • • HART communication
  • • Stainless steel housing
  • • -40°C to +85°C operating range
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AT3051 TG(TA) Pressure Transmitter

AT3051 TG(TA) Pressure Transmitter

Robust gauge and absolute pressure transmitter ideal for industrial process monitoring and control systems.

  • • 0.1% FS accuracy
  • • Explosion-proof options
  • • 4-20mA output
  • • IP67 protection rating
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AT3051 LT Single Flange Level Transmitter

AT3051 LT Single Flange Level Transmitter

Designed for liquid level measurement in tanks and vessels with high viscosity or corrosive media.

  • • Flanged diaphragm seal
  • • Corrosion-resistant materials
  • • Low maintenance
  • • HART protocol support
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SP Compact Pressure Transmitter

SP Compact Pressure Transmitter

Space-saving design for OEM integration and tight installation spaces without compromising performance.

  • • Miniature housing
  • • 0.25% accuracy
  • • G1/4 or M20 thread
  • • Wide voltage supply
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30m-500m Deep Well Water Level Meter

30m-500m Deep Well Water Level Meter

Submersible hydrostatic level sensor for deep well, reservoir, and groundwater monitoring applications.

  • • Stainless steel cable
  • • IP68 rating
  • • Lightning protection
  • • Long-term stability
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Vibration Tuning Fork Level Switch

Liquid Level Control Vibration Tuning Fork

Point level detection for liquids in tanks, pipes, and sumps with high reliability and no moving parts.

  • • No calibration needed
  • • Works with viscous media
  • • 316L stainless steel
  • • 24VDC or 220VAC
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Radar Level Transmitter

Radar Level Meter / Transmitter

Non-contact radar level measurement for bulk solids and liquids in challenging industrial environments.

  • • 26 GHz FMCW radar
  • • No process contact
  • • Dust & vapor resistant
  • • 4-20mA + HART
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Handheld Ultrasonic Flow Meter

Handheld Ultrasonic Flow Meter

Portable, clamp-on flow meter for temporary or permanent monitoring of liquid flow in pipes.

  • • No pipe cutting
  • • Data logging function
  • • Rechargeable battery
  • • 25mm to 6000mm pipe size
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Serving Critical Industries

Whether you need a single instrument or a complete instrumentation package, YANTAI AUTO is your professional supplier for any project.

Water & Conservancy

Level, flow, and pressure monitoring for water treatment, reservoirs, and irrigation systems.

Petrochemical

Explosion-proof transmitters and sensors for oil, gas, and chemical processing plants.

Food & Pharmacy

Hygienic sensors with FDA-compliant materials for sanitary process control.

Environmental Engineering

Monitoring solutions for wastewater, emissions, and environmental compliance.

Technical Support

Our team of engineers provides comprehensive technical support, from product selection and configuration to installation guidance and troubleshooting.

  • 24/7 Online Support
  • Product Manuals & Datasheets
  • HART Communicator Compatibility
  • Custom Calibration Services
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Latest News

November 6, 2023

INDOWATER 2024 EXPO & FORUM

We are proud to announce our participation in INDOWATER 2024 EXPO & FORUM in Jakarta. Visit us at Stand G25.

November 3, 2023

Vietnam Industrial Automation Fiesta 2023

Our agent in Vietnam will attend the exhibition from Nov 8–10. Come see our latest transmitters.

October 26, 2023

Auto at MICONEX 2023

Auto Instrument showcased cutting-edge products at the 31st International Fair in Beijing.

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Get in Touch

Reach out to our team for product inquiries, technical support, or partnership opportunities.

Contact Information

No.3 Hengshan Road, ETDZ, Yantai, Shandong, China

+86-535-6778766

+86-18906383598

[email protected]

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