1. Althen Sensors
  2. Sensors
  3. Rotary position sensors
  4. Rotary inductive position sensors
  5. P505 Slim-line rotary sensor

P505 Slim-line rotary sensor

Compact high-precision rotary sensor designed for industrial and OEM applications requiring high accuracy and minimal wear in space-constrained environments.


Key features

  • Compact Ø19 mm body with stainless steel construction
  • Factory-calibrated angle range between 15° and 160°
  • Sealed to IP67 for harsh environments
  • High linearity: ≤ ±0.25% FSO at 20°C
  • Long life: MTBF over 350,000 hours
  • Multiple output options including 0.5–4.5 V, 0.5–9.5 V, and 4–20 mA

Performance highlights P505 Slim-line rotary sensor

The P505 is a slim-line rotary position sensor offering outstanding precision and reliability. It features a fully non-contacting inductive sensing mechanism, providing an infinite resolution signal output with minimal electrical noise and excellent temperature stability. Designed to operate reliably in extreme environments, it delivers high repeatability and low torque for demanding rotary applications.

Usage conditions

Built with stainless steel housing and shaft, the P505 ensures resistance to mechanical and environmental stress. With an operating temperature from -40°C to +125°C and full EMC protection, it performs reliably in a wide range of industrial conditions. Its IP67-rated sealing makes it ideal for dusty or wet settings.

Possible applications

  • Industrial automation systems
  • Scientific instrumentation
  • Compact OEM assemblies
  • Robotics and motion control systems
  • Valve or throttle position monitoring

Advantages of choosing this product

By combining high accuracy with a slim profile, the P505 delivers high-performance rotary feedback where space constraints and durability are key. Its wear-free inductive design guarantees long service life, while its easy integration options (flange or servo mount) support fast OEM deployment. Additionally, its customizable angle range and multiple output configurations allow for versatile implementation.

Other important features

  • Optional enhanced linearity (≤ ±0.1%)
  • Infinite resolution, <0.02% FSO noise
  • Shaft load capability up to 1kg (side and axial)
  • Compatible with flexible couplings
  • Reverse output characteristics available

Do you need this sensor for your next project?

Request a no-obligation quote or send us your contact details for a free, no-obligation consultation. Our sales engineers will then contact you within a maximum of 1 to 2 working days.

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Not exactly what you are looking for? We offer standard sensors, but can also help you with sensors adapted for you or a fully customised measurement solution. Contact us for advice or pricing.

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Technical Specifications

Specification Value
Body diameter 19 mm
Body length (to mounting face) 45.4 mm standard, 50.4 mm buffered
Shaft diameter 8 mm Ø 4 mm
Temperature range -40°C to +125°C
Independent linearity ≤ ± 0.25% FSO @ 20°C (up to 100°)
Temp. coefficient (gain/offset) < ± 0.01%/°C gain, < ± 0.01%FS/°C offset
Frequency response >10 kHz (-3 dB)
Resolution Infinite
Noise < 0.02% FSO
Torque < 15 mNm static
Operating temperature -40°C to +125°C (standard), -20°C to +85°C (buffered)
Storage temperature -40°C to +125°C
Sealing IP67
EMC performance EN 61000-6-2, EN 61000-6-3
Vibration 10 g (IEC 68-2-6)
Shock 40 g (IEC 68-2-29)

Related products

Need something else?

P503 Flat rotary sensor assembly

  • Non-contact inductive sensing eliminates wear
  • Factory calibrated range from 15° to 160°
  • High durability: >16 million cycles and 350,000 hrs MTBF
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