G125 (Submersible) Linear Inductive Position Sensor

Rugged IP68 350bar submersible stand alone linear position sensor

About the G125 (Submersible) Linear Inductive Position Sensor

The G125 is designed to provide feedback for arduous underwater applications, such as ROVs, where hazardous surface conditions may exist. It remains an affordable, durable, high-accuracy position.

The unit is highly compact and space-efficient, being responsive along almost its entire length.

Overall performance, repeatability and stability are outstanding over a wide temperature range. It provides a linear output proportional to displacement. Each unit is supplied with the output calibrated to the travel required by the customer, from 5mm to 800mm and with full EMC protection built in.

The sensor is very robust, the body and push rod being made of stainless steel for long service life and environmental resistance.

The sensor is easy to install with mounting options including M8 rod eye bearings and body clamps. The push rod can be supplied free or captive, with male M8 thread, an M8 rod eye, or dome end. Captive push rods can be sprung loaded, in either direction. Environmental sealing is to IP68 350 Bar.

Features G125

  • Intrinsically safe for Gas to: Class I, Zone 0 Ex ia/ AEx ia
  • Travel set to customer's requirement
  • Compact and self-contained
  • High durability and reliability
  • High accuracy and stability
  • Sealing to IP68 350Bar

As a leading supplier of linear, rotary, tilt and intrinsically safe position sensors, Althen has the expertise to supply a sensor to suit a wide variety of applications.


Measurement range
Up to 800mm
Independent linearity
±0.1% to ±0.5%
Output signal
0.5-4.5VDC ratiometric
Frequency response
>10KHz (-3dB)
Body diameter
IP68 350bar, 3500msw, 5000psi
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