The fuel flow meter provides accurate and reliable measurement of fuel consumption for diesel and gasoline systems. It helps optimize fuel efficiency, reduce operating costs, and ensure stable performance in vehicles, generators, and industrial fuel monitoring applications. (read more)

An Automatic Tank Gauge (ATG) system is a monitoring system designed to track various parameters within underground or aboveground storage tanks, particularly at gas stations. This includes detecting fuel levels, water levels, liquid temperature, volume, and space. (read more)

Magnetostrictive level sensors deliver highly accurate, continuous, and reliable liquid level measurement. With robust, wear-free design and wide industry adaptability, they ensure safe operation, reduced maintenance, and long-term cost savings for water, oil, and chemical storage applications. (read more)

Wireless Level Sensors can effectively monitor the level of UAN in agriculture with accuracy up to 0.1%F.S (read more)

UE3003 is a compact ultrasonic level sensor offering precise, non-contact liquid measurement. With wide-range options, temperature compensation, fast response, and robust protection, it’s ideal for tanks, rivers, and industrial applications requiring reliable real-time level monitoring. (read more)

The HPT604-FW is a compact, high-accuracy sensor that detects water presence, fuel level, and temperature at the samet ime. Ideal for diesel , and other fuel tanks, it offers real-time alarms, reliable data, and excellent performance at a low cost. (read more)

HR2000 is a high-precision 80GHz radar level sensor offering ±2mm accuracy, resistance to environmental factors, easy integration with control systems, low power consumption, and a user-friendly top-mounted design, making it perfect for industrial level monitoring and remote control applications. (read more)

If you are looking for a radar level sensor that is capable of measuring level of both liquids and solids, even in harsh environments, like strong dust, high temperature, our HR80G radar level transmitter is a perfect option. (read more)

HPT621 capacitive level sensor features imported IC chips for high precision. Its 304 stainless steel probe resists corrosion and high temperatures, with a sensitive tip that supports on-site zero and full-scale calibration. It withstands up to 200°C (customized), resists adhesion and foam, and works with fuels, water, and chemicals. (read more)

HPT200 is equipped with a premium imported piezoresistive sensor, achieving ultra-low non-linearity error of just 0.1% F.S. It enables precise detection even in harsh environment (read more)

The 80 GHz radar flowmeter provides unmatched accuracy, even in turbulent or dense environments. With high-frequency operation, it delivers precise measurements over long distances, offering a contactless, maintenance-free solution for a wide range of industrial flow applications. (read more)

H2601 is designed for remote pressure monitoring. it provides accurate real-time data transmission via LoRa /4G network, ensuring reliability in harsh conditions. With Holykell cloud platform supported, it offers an ideal solution for wireless pressure monitoring in various industrial and environmental applications, including Smart Agriculture, Water treatment, water supply, fire system... (read more)

Holykell just joined WEFTEC & WETEX 2025. We offer customization services for different demands and requirements. (read more)

HPT606 is a submersible sludge level transmitter for rivers and lakes. Its ceramic filter resists clogging, while low power consumption and surge protection ensure stable, long-term performance. Ideal for flood monitoring, water level sensing, and environmental applications. (read more)

The EP200 Series pressure sensor features a high-performance silicon core, stainless steel housing, and multiple connection options. It offers high accuracy, wide pressure range, and strong resistance to corrosion and vibration—ideal for industrial, automotive, medical, and HVAC applications. (read more)

Magnetic flowmeter offers accurate, versatile flow measurement for conductive fluids, featuring no pressure loss, robust anti-interference, and customizable output options. Its durable design and easy-to-use interface ensure reliable operation in challenging industrial conditions. (read more)

Economic air pressure sensors is especially designed for racing car and track gas brake systems, it sets a new performance standard for low cost, high volume, commercial and industrial applications. (read more)

Discover how the HR2000, HR65, HR80G, and HR300 can transform your operations with their cutting-edge features and benefits. (read more)

UE3006 ultrasonic level sensor delivers precise liquid monitoring with 0.25% F.S accuracy, compact design, and a 60 mm blind zone. Its durable housing and advanced circuitry ensure reliable performance in water, chemical, and wastewater treatment applications. (read more)

This high-precision sensor features a compact stainless steel housing, built-in ceramic core with strong corrosion-resistance, not affected by great temperature and humidity changes (read more)

The H2602 wireless temperature sensor provides accurate, real-time monitoring with 4G or LoRa connectivity. With long battery life, high data capacity, and remote access via cloud, it’s ideal for HVAC, heating systems, and industrial equipment monitoring (read more)

Non-contact ultrasonic level sensors provide a reliable and maintenance-free solution for continuous level monitoring in tanks, wells, and open channels. they deliver accurate level readings without touching the medium. Easy to install and unaffected by changes in density, viscosity (read more)

The Submersible Level Sensor for Fuel and Gas provides accurate, reliable, and durable level measurement. Featuring multiple output options, corrosion-resistant construction, and wide measurement range, it integrates seamlessly with monitoring systems for safe, efficient, and hassle-free fuel and gas management. (read more)

This HAVC pressure sensor is specially developed for refrigerant pressure measurement. It uses ceramic capacitive sensitive components, compatible with various refrigerants, including R12,R22,R134a,R404a,R407c,R410a,R502 ,R507 (read more)

HPT611 anti-clogging slurry level sensor delivers reliable performance in sewage and sludge applications. Its 316L steel body, anti-blocking design, and IP68 protection make it ideal for viscous medium measurement in harsh environments like food prevention, lift stations and slurry pits. (read more)

Engineered for versatility and reliability, the HPT602 pressure transmitter offers precise measurement, multiple output options, and robust stainless-steel construction. Its hygienic design and wide temperature range make it ideal for demanding industrial applications. (read more)

With the advancing development of industrial automation, the role of ultrasonic flow meters in process control is becoming increasingly critical. However, encountering faults can disrupt production efficiency and process stability. The ability to solve them promptly becomes a basic skill. (read more)

HLM Water Level Meter is a portable level sensor and offers high accuracy with laser-marked tape, fast response, and dual alarms. Perfect for groundwater, wells, and irrigation monitoring. Rugged design with a self-powered reel ensures reliable use across various hydrological applications. (read more)

HPT604-BS is a fuel level sensor with a magnetic base that secures the probe to tank bottoms, ensuring stable, precise readings. It’s explosion-proof, highly accurate, and built to withstand harsh environments like fuel tanks, marine systems, and process control. (read more)

The HPT607-E is a Ø16mm submersible level sensor ideal for deep wells and groundwater. With dual filtration, temperature compensation, and robust IP68 design, it ensures accurate, long-term monitoring in confined or rugged environments. Compatible with most monitoring systems. (read more)

Differential pressure transmitter adopts single crystal silicon pressure sensor technology and packaging process to measure steam, combustible gas, liquid (standard and corrosive). Innovative "dual compensation" technology can achieve a high precision of 0.075% F.S. The OLED display and Hastelloy housing make reading easier, with a lifespan of up to 10 years. (read more)

Clamp-on Ultrasonic Flowmeter offers precise, energy-efficient measurements without pressure loss and pipe cut. It features easy installation, multiple output options, durable design, and advanced data recording, making it an ideal choice for reliable, cost-effective flow measurement. (read more)

This ceramic pressure transmitter stands out with its robust compact stainless steel housing, easy installation even in confined spaces. Equipped with a high-precision ceramic sensing element of high accuracy 0.5% and long-term stability, even in harsh environments. (read more)

The HPT605 submersible sewage level sensor delivers stable measurement in polluted water with automatic temperature compensation, fast response, and strong protective design. Its low-power output and large-diameter filter nose ensure dependable long-term performance in harsh wastewater applications. (read more)

A highly stable and accurate submersible fuel level sensor with adjustable height and noise-resistant digital signal processing, ideal for low-level measurement in small or vibrating diesel tanks. Designed for generators, refineries, and custom fuel applications. (read more)

The submersible water level sensor HPT604 can be used in various water treatment applications with high accuracy and stability with 10+years lifespan. (read more)

HPT604-LT is a sensor that can measure the liquid level, temperature, and volume at the same time and can combine a display as level monitoring and display solution. (read more)

This sputtered thin film pressure sensor offers 0.2% accuracy, multiple pressure range options, and robust stainless steel construction. The only and best choice for heavy equipment, construction equipment and hydraulic systems. (read more)

HPT200-HT uses high quality diffused silicon pressure sensor or sapphire pressure sensor, designed for extreme conditions, and max temp of 200°C and even more. (read more)

UE3001 ultrasonic level sensor offers precise ±0.5% F.S measurement, versatile 5–15m range, multiple outputs, robust IP65–68 protection, and user-friendly interface, enabling reliable liquid level monitoring across diverse environments while minimizing maintenance and integration effort. (read more)

Vortex flow meters accurately measure steam, gas, and liquid flows, making them ideal for industrial processes, energy management, and automation. With no moving parts, they ensure reliability, low maintenance, and long-term stability (read more)

Designed for sanitary applications, this pressure sensor features high accuracy, corrosion resistance, and a flat diaphragm for easy cleaning. Suitable for high-temperature and demanding industrial environments, sanitary applications, including food and beverage industries. (read more)

The HPT200-EX intrinsically safe pressure transmitter, designed for use in hazardous environments, offers a reliable pressure measurement, ideal for the high demands of industrial oil and gas, flammable and explosive applications. (read more)

Digital Displays & Controllers support common inputs such as 4–20 mA, RS485, pulse, voltage signals, and more, ensuring easy integration with pressure, level, temperature, and flow sensors. They're common in water and wastewater treatment, chemical processing, HVAC systems, energy management, food and beverage, and industrial automation (read more)

HPT200-G pressure transducer offers ±0.5% F.S. accuracy, a built-in LCD display, and 316L stainless steel construction for durability. With a wide pressure range and IP65/IP67 protection, it's perfect for reliable, real-time pressure monitoring in harsh environments. (read more)

A robust, self-powered water level data logger with titanium/316L housing & built-in temp sensor. Delivers long-term, high-accuracy monitoring of groundwater or surface water. Ideal for harsh environments, industrial automation, and remote-level tracking over 10+ years. (read more)

The HW500 LoRa Wireless Gateway delivers reliable, high-speed IoT communication with 3G/4G network compatibility, a powerful 64-bit RISC-V processor, and GPS support. Its industrial-grade design ensures stable performance and flexible connectivity for smart cities, automation, and environmental monitoring applications. (read more)

The HPT608 Submersible Marine Level Sensor offers high-accuracy seawater level measurement for ships and ports. With titanium alloy housing, explosion-proof certification, and corrosion-resistant design, it ensures reliable, long-term performance in harsh marine environments, from ballast tanks to ship draught monitoring. (read more)

20 lesser-known but highly capable sensor companies all over the world. (read more)

This mass flow meter precisely and directly measures the mass of gases, liquids, and multi-phase flows with high accuracy. It simultaneously monitors flow, density, and temperature, requiring no straight pipe runs. With high accuracy, it is ideal for trade settlements to extreme process conditions. (read more)