Professional Industrial Sensor Manufacturer

Professional Industrial Sensor Manufacturer

Firstrate is a Professional Sensor Manufacturer With Over 60 Years of History, Offering OEM/ODM Customization Services.

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The loT World, Sensing First

The loT World, Sensing First

Firstrate IoT Sensors Empower Smart City Development.

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Why choose Firstrate

60+ Years of Sensor Expertise Founded in 1965, with over 60 years of sensor R&D and manufacturing experience.

Firstrate

60+ Years in Sensor Manufacturing

Founded in 1965 as Changsha Hongqi Instrument Factory, among China's earliest sensor manufacturers

Firstrate

400+ Products

Industrial sensors, intelligent instruments, and IoT sensors for 30+ industries.

Firstrate

80+ Certifications

Certified to CPA, CQC, CE, RoHS, Ex, ATEX, MA, and other international standards

Firstrate

Serving the Global Market

Producing 500,000 sensors annually for customers in over 100 countries.

Firstrate

Professional Engineering Support

Experienced engineers provide one-to-one product selection assistance, saving you time and cost.

Firstrate

OEM & ODM Services

Customized solutions tailored to your specific application requirements.

Featured Sensor Products

Firstrate main products include industrial and IoT related sensors such as pressure measurement, wind speed measurement, temperature measurement, liquid level measurement, displacement measurement, environmental monitoring, and water quality monitoring.

Pressure Sensor Wind Sensor Liquid Level and Flow Meter Temperature Sensor Displacement Sensor Ambient Sensor Water Quality Sensor Gas Sensor Manhole Cover Monitoring Terminal IoT Wireless Sensor Display and Communication

Industry Application—>>

Sensors serve as the primary sensing interface for intelligent manufacturing, automated production lines, equipment operation and maintenance, and safety management. They capture physical parameters such as pressure, temperature, liquid level, wind speed and direction, displacement, flow rate, water quality, and gas composition and convert them into electrical signals. These signals are then transmitted to PLCs, DCSs, industrial gateways, or SCADA systems to facilitate monitoring, closed-loop control, fault early warning, and safety interlocking. Key sensor types include: pressure/differential pressure sensors and transmitters; temperature sensors; liquid level sensors; wind speed and direction sensors; displacement sensors; flow sensors; water quality sensors; and gas sensors.

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Data Center

Sensors serve as the foundational sensing layer for infrastructure monitoring, thermal management, power distribution safety, and security/fire protection in data centers. By feeding collected data into DCIM (Data Center Infrastructure Management) or BMS (Building Management System) platforms, these sensors help eliminate hotspots, mitigate risks such as water leaks or fires, and lower PUE (Power Usage Effectiveness) all of which are essential for ensuring the continuous, stable operation of servers. This need is particularly pronounced in air-cooled facilities as well as high-density AI data centers utilizing liquid cooling. Key sensor types include pressure sensors, temperature sensors, liquid level sensors, flow sensors/meters, water conductivity sensors, turbidity sensors, and pH sensors.

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Industrial Intelligent Manufacturing Automation

Sensors serve as the sensory terminals for industrial automation acting, in effect, as the "sense organs" of an automated system. They capture physical parameters from the field, convert them into electrical signals, and transmit this data to controllers such as PLCs, industrial computers, or DCS. This enables functions like monitoring, closed-loop control, safety interlocking, and data transmission, forming the essential foundation for smart manufacturing, production line automation, and process industries. Key sensor types include: pressure/differential pressure sensors and transmitters; temperature sensors; liquid level sensors/transmitters; wind speed and direction sensors; displacement sensors; flow sensors/meters; water quality sensors; gas sensors; and force/load sensors.

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HVAC

Sensors serve as the sensing front-end for HVAC automation and Building Management Systems (BMS). Their core function is to collect data on environmental conditions, fluid properties, and equipment parameters, which is then relayed to controllers for closed-loop regulation, air quality management, equipment protection, and energy optimization. These systems collectively address four key objectives: occupant comfort, energy efficiency, safety, and operational maintenance. Common sensor types include pressure/differential pressure sensors (covering differential pressure, static pressure, and refrigerant pressure), temperature and humidity sensors, air quality sensors, airflow/air velocity sensors, as well as water flow and liquid level sensors.

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Construction Machinery

Operating conditions for construction machinery are characterized by intense vibration, high levels of dust, significant temperature fluctuations, exposure to moisture and rain, and impact loads. Consequently, sensors used in these environments generally require high ingress protection (IP67/IP68), impact resistance, and immunity to electromagnetic interference. Common signal interfaces include 4-20mA, CAN bus, and RS485, ensuring compatibility with onboard electronic control units (ECUs), PLCs, and remote monitoring platforms. These applications are categorized into six primary domains: power systems, hydraulic systems, orientation and operational control, safety protection, environmental sensing, and condition monitoring with predictive maintenance. Key sensor types employed include pressure, temperature, liquid level, wind speed and direction, displacement, flow, and force sensors.

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Explosion-proof Working Condition

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Energy & Electric Power

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Petrochemical Industry

The petrochemical industry involves operating conditions characterized by high temperatures, high pressures, flammable and explosive substances, and toxic media. Sensors serve as the fundamental core for process control, safety early warning, custody transfer (trade metering), equipment operation and maintenance, and environmental emissions monitoring. Most of these applications require equipment that is explosion-proof, corrosion-resistant, capable of withstanding extreme temperatures, and resistant to vibration. These requirements span the entire industry chain from upstream oil and gas extraction and gathering/transportation pipelines to refining, chemical processing, storage (tanks and warehouses), and the treatment of waste gases and wastewater. Key sensor types used in this sector include explosion-proof pressure sensors, explosion-proof temperature sensors, oil level sensors, and explosion-proof flow sensors/flowmeters.

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loT Application—>>

Sensors are the core of the perception layer in the Internet of Things (IoT) acting, in effect, as the "senses" of the IoT. They are responsible for capturing physical or environmental signals such as pressure, temperature, liquid levels, ambient conditions, water quality, or gas concentrations and converting them into electrical signals. These signals are then transmitted via gateways and networks to a platform for analysis, decision-making, and control. Key application scenarios include smart industry, smart cities, and smart agriculture.

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Smart Environment

The core of smart environmental monitoring relies on various sensors to collect physical, chemical, and biological environmental parameters in real time. By integrating data transmission, edge computing, and cloud platforms, the system enables automated sensing, data uploading, threshold-exceedance alerts, and source-tracing analysis. It covers a wide range of applications, including the monitoring of air, water quality, soil, noise, meteorological conditions, and the overall environment within industrial parks or cities. Key sensor types employed include those for wind speed and direction, temperature and humidity, atmospheric pressure, noise levels, light intensity, and rainfall.

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Smart Water

Sensors serve as the core of the perception layer in smart water management. They cover the entire water infrastructure—including water sources, treatment plants, water supply networks, secondary water supply systems, drainage networks, wastewater treatment facilities, rivers, lakes, reservoirs, and pumping station equipment by collecting data such as water level, flow rate, pressure, water quality, acoustic signals, and vibration. This data is transmitted to a central platform via NB-IoT, 4G, or LoRa, enabling online monitoring, early warning, automated control, leakage management, flood prevention and mitigation, and process optimization. Key sensor types include: liquid/water level sensors (radar, ultrasonic, and submersible hydrostatic pressure transmitters); flow meters (electromagnetic, Doppler ultrasonic, and radar-based); and water quality sensors (measuring pH, dissolved oxygen, turbidity, conductivity, ammonia nitrogen, COD, total phosphorus, and total nitrogen).

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Smart Agriculture and Animal Husbandry

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Smart Water Supply and Drainage

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Smart Manhole Cover

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Smart Community

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Smart Utility Tunnel

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Industry Application—>>

Data Center

Industrial Intelligent Manufacturing Automation

HVAC

Construction Machinery

Explosion-proof Working Condition

Energy & Electric Power

Petrochemical Industry

loT Application—>>

Smart Environment

Smart Water

Smart Agriculture and Animal Husbandry

Smart Water Supply and Drainage

Smart Manhole Cover

Smart Community

Smart Utility Tunnel

Hunan Firstrate Sensor Co.,Ltd.

Is a leading sensor Manufacturer with 60 years Experience, mainly engaged in industrial measuring instruments and IOT solution,such as pressure Sensor, infrared emperature sensor, wind speed sensors ect,and one-stop solutions. Committed to provide customers with high-end customized sensors and IoT system integration solutions, our products are widely used in aerospace / marine / military, engineering / textile machinery, oil / gas, HVAC / air conditioning, smart cities, industrial interconnects and other fields.

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60 +

Brand History

Focus on the sensor field

150 +

National Patents

International advanced technology

80 +

Product Certification

Over 80 EU & Chinese Product Certifications

Certificates

Our products have obtained CE, RoHS, ISO, ATEX and other international certifications

ISO9001

ISO9001

FST800-CE-EMC

FST800-CE-EMC

FST800-CE-Standard

FST800-CE-Standard

FST800-RoHS

FST800-RoHS

FST800-214-ATEX

FST800-214-ATEX

FST800-214-ATEX

FST800-214-ATEX

You are the witness of our achievements

Firstrate Sensor products are sold in 100 countries around the world, and it has long-term cooperative relations with 300 well-known companies.

100 +

Countries

Serve the global market

300 +

Customers

More choices for companies

300000 +

Users

More users' trust

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Find out what's going on at Firstrate

24


2026-09

Full Moon for Mid-Autumn, Celebrating the Nation’s Birthday | Firstrate wishes our motherland prosperity, and wishes everyone a happy Mid-Autumn Festival with your whole family!

Sensing technology builds our foundation; the full moon brings us together in reunion. On this wonderful occasion of the double festival celebration, Firstrate is grateful to build our business hand in hand with our valued customers and partners from all walks of life. Wishing you a happy Mid-Autumn Festival, joyful family togetherness, and flourishing business!

29


2026-08

Sensing Built for Tomorrow, Intelligence Empowered — Firstrate Shines at IOTE 2026 Shenzhen International IoT Expo

This edition of IOTE conveyed a clear signal: the IoT industry is transitioning from the concept validation stage into the large-scale implementation stage. This places higher demands on sensor enterprises — they must not only make sensors accurate and reliable, but also understand scenarios, communication, platforms, and delivery. The solutions Firstrate showcased at this exhibition are precisely a response to this trend: taking sensing hardware as the entry point, rooted downward in manufacturing expertise, and extending upward to solution design and services.

14


2026-08

Invitation | Firstrate Cordially Invites You to IOTE 2026‑The 25th International Internet of Things Exhibition · Shenzhen

IOTE 2026 – The 25th International Internet of Things Exhibition · Shenzhen will be held from August 26 to 28 at Shenzhen World Exhibition & Convention Center (Bao’an New Hall). Bringing together over 1,000 enterprises, the exhibition draws system integrators and end‑buyers from industries including manufacturing, smart cities and smart logistics.The event highlights core technologies across the perception layer, network layer, platform layer and application layer. It showcases cutting‑edge achievements such as sensors, low‑power wide‑area networks, edge computing and AIoT solutions. More than 40 industry forums and the “IoT Star” selection will also take place, building a global trade and technical exchange platform for the Internet of Things.

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Contact Us

· Our company was founded in 1965 and has more than 60 years of experience in sensor R & D and production.

· Our products have obtained CE, RoHS, ISO, ATEX and other international certifications.

Please leave your contact information to get one-on-one product selection guidance and quotation services from professional engineers.

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