Monitoring fluid levels accurately is essential to maintaining safety and performance. At Coltraco, we provide ultrasonic liquid level indicators that help you measure fluid levels without invasive installation or system downtime. Whether you manage hydraulic systems, water tanks, or CO2 cylinders, our level indicators give you confidence in your operations.
We are proud winners of the Queen’s Award for Enterprise in International Trade, in both 2019 and 2022.
A liquid level indicator detects the point at which liquid reaches a certain level in a tank, pipe, or vessel. Coltraco’s ultrasonic sensors do this externally, using sound waves to identify the presence of liquid without needing direct contact.
The device works by measuring the liquid level and detecting any change in the level. When a change occurs, the sensor quantifies the new level and converts it into an electrical signal, ensuring accurate monitoring.
This method does not require internal access, making it ideal for testing sealed units, plastic tanks, or equipment.
These units work with various types of liquids and containers, and can measure different types of media, including oil, water, chemicals, and hot and cold drinks. From milk dispensers to industrial oil tanks, our technology adapts to your environment and is used across industries such as pharmaceuticals.
Each sensor emits a high-frequency pulse that passes through the tank wall. When this pulse hits the liquid inside, it reflects back to the sensor, allowing the unit to determine if liquid is present. The measuring process is simple, the time taken for the reflected signal to return is used to calculate the liquid level accurately.
This technology uses a piezoelectric crystal and ultrasound gel to ensure a reliable connection between the sensor and the surface. The system detects fluid levels even through resistant materials like glass or plastic and works whether the liquid is hot or cold.
You do not need to modify your tanks or interrupt service. Our ultrasonic level detectors operate while the equipment is live, reducing the need for downtime or draining.
Portatank® – For Tanks
The Portatank® is a handheld ultrasonic level indicator for tanks from 0.5 to over 15 metres. It works with multiple surfaces, including plastic, metal, and glass, regardless of wall thickness.
Portapipe® – For Pipes
The Portapipe® works in horizontal or vertical pipes between 25mm and 330mm in diameter. It delivers ±1% accuracy in detecting liquid levels.
Our liquid level indicators are suitable for both national and global markets. They are trusted in sectors including:
In a real-world example, the Portatank® provided more accurate readings than a float gauge in a Yorkshire switchgear application, helping validate fluid measurements quickly.
For more information about specific applications or products, please contact us or visit our product pages.
Coltraco’s technology stands out for its precision, portability, and wide compatibility. Each unit includes features designed for ease of use in real environments:
Unlike a typical water level sensor or other types of level sensors, Coltraco’s indicators allow liquid levels to be measured accurately without direct contact or system interruption. You can use our indicators to cross-check float gauges, test sight glasses, or verify data from internal sensors. This gives you added confidence in your system’s performance.
Consider your container type, fluid, and access restrictions to choose the right indicator. Coltraco offers options suited to almost every requirement, including:
If you need help, our team will guide you through the most suitable system for your application. You can also view listings from trusted distributors or contact us directly.
Our ultrasonic level indicators are made in the UK and used worldwide. Every unit is built for reliability and accuracy, offering a dependable way to manage fluid levels across all sectors.
We work with maintenance teams, engineers, site managers, and global companies to deliver non-invasive, user-friendly solutions.
Our technology helps reduce service time, improve safety, and protect your equipment from unnecessary wear or error.
Whether you’re testing hydraulic systems, checking the level in a tank, or maintaining a basket of units, our sensors give you the results you need – quickly and precisely.
If you’re looking for a trusted liquid level indicator, Coltraco has a solution for your system. Contact us today to speak to a member of our team.
We’ll help you find the best unit for your application and ensure smooth, effective integration into your process.
