X125 350 bar submersible stand-alone linear position sensor

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Key features

• Intrinsically safe for gas/vapour areas (Ex II 1G)
• Pressure-rated to 350 bar (IP68)
• Travel range: 5 mm to 800 mm
• Ratiometric output 0.5–4.5 V
• ATEX, IECEx & UKEX certified
• Optional spring-loaded and magnetic rod tips

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Performance highlights

The X125 linear position sensor delivers precise analog displacement feedback in the most demanding submersible environments. Engineered with EX07 electronics and certified for intrinsic safety, this sensor performs reliably in gas/vapour hazardous zones and can operate at depths of up to 3500 meters (350 bar). It offers infinite resolution and a frequency response over 10 kHz, ensuring highly dynamic measurements.

Usage conditions

With environmental sealing up to IP68 at 350 bar, the X125 is designed for long-term submersion and harsh underwater use, including on ROVs or subsea installations. The rugged stainless-steel housing, combined with wide temperature operating ranges (-40°C to +80°C), ensures maximum durability and performance.

Possible applications

• Subsea ROV and AUV position feedback
• Submersible hydraulic actuator displacement
• Offshore drilling and pipe inspection
• Underwater vehicle sensor integration
• Oil & gas exploration tools

Advantages of choosing this product

This sensor provides reliable linear feedback even under high pressure and temperature fluctuations. It comes factory-calibrated to your required stroke, integrates easily with M8 rod-eye or clamp mounting options, and is compatible with Althen’s X005 galvanic barrier amplifier to maintain signal integrity across long cable distances.

Other important features

• Infinite resolution and low noise (<0.02% FSO)
• EMC compliant: EN 61000-6-2, EN 61000-6-3
• High MTBF: 350,000 hrs at 40°C
• Multiple push rod end fittings (magnetic tip, dome, thread, rod-eye)
• Three or five-wire connection mode
• Vibration: 10 g / Shock: 40 g (IEC standards)

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