Submersible Linear Sensors

Positek supplies a range of high-accuracy linear sensors specifically designed for use in submersible applications.


Made from marine grade stainless steel, and offering the reliability that is not possible from a submersible lvdt or linear potentiometer, our sensors have served a host of different industries such as wastewater and off-shore oil drilling.

Another use for the submersible linear sensor is as an alternative to a waterproof linear potentiometer. Although our subsea sensors can withstand submersion in depths of up to 3500m, they are also suitable for applications in any harsh environment where the sensor might be exposed to excessive amounts of fresh water or other non-corrosive liquid.

As with every linear position sensor that we supply, our submersible position sensor solutions employ non-contact technology to ensure the highest levels of reliability, even when underwater. Every submersible linear sensor within our range therefore operates without interference or wear, and boasts an extremely low failure rate.

Unlike many submersible lvdt manufacturers, Positek has the flexibility to customise any submersible position sensor to fit your required size or specification. If our standard range is not suited to your application, please contact a member of our design team to discuss your requirements. We can then have your marine sensor assembled and dispatched in as little as 1-2 working days.

Click here to find a submersible linear sensor.


In Focus: The Incredible Features of a Submersible Sensor

Amongst the different types of sensor, a submersible sensor is probably the most resilient. It is specially designed to function and withstand the extreme pressure underwater. It also has the potential to last for many years if properly used and maintained. It is made from fine-grade stainless steel that is capable of enduring the conditions under the sea. Whether the sensor is exposed to deep waters or on air, a submersible position sensor can be expected to deliver durability with outstanding and accurate measurements.

To what depth can linear sensors be expected to work?

A submersible sensor is built to work in deep waters. Don’t let the size fool you because despite of its compact size, it boasts accurate data on the slant that it measures. A linear position sensor is sufficiently durable enough to tolerate pressure of depths up to 3,500m, however, some can endure deeper waters and still give high precision measurements.

What type of environments will a submersible linear sensor be suitable for?

A submersible sensor can be capable of withstanding deep sea conditions with pressure up to 5,000 psi. They are built to endure any kind of temperature, even the harshest. It can bear any level of humidity depending on the build of the sensor. It can still function properly in an event that it encounters high levels of shock and vibration. Overall, a linear potentiometer can be adapted to whatever type of environment it will be utilised for, regardless of the conditions being too hazardous or calm.

Where can you find submersible linear sensors being used?

As mentioned above, a submersible lvdt can withstand even the most harsh environments. While a submersible sensor is commonly used in applications submerged in relatively clean water, this device can also be found being utilised in lift stations, underwater oil mining, wet wells, holding tanks, refineries, filling equipment, and distillations. Its common applications also include water measurement in vessels, reservoirs, pits, and channels.

Sensors are now a crucial part of most types of machinery or equipment, in various applications, whether it is for vehicles, gadgets, and even massive machinery such as underwater vessels and ships. Every area of industry would definitely benefit from utilising this powerful device.

If our standard submersible tilt sensor or inclinometer measurements are outside of your specification, please contact a member of our engineering team to discuss your requirements. Your custom tilt position sensor will then be designed at no extra cost, assembled at our onsite production facility, and shipped out to you as soon as possible. In some cases, this process can take as little as 1-2 working days.

Click here to find a tilt sensor or inclinometer.

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