Curtiss-Wright SRH280DP

5Vdc or 9-30Vdc, Contactless Rotary Sensor, Dual Output, Hall Effect, Analog or Digital (PWM) Output, Sensor Measurement Range from 0-20° to 0-360°.

The Penny & Giles SRH280DP Rotary Sensor is a legacy product used by existing customers. For new installations and applications, we recommend selecting the modern equivalent Penny & Giles  SRH301 & SRH302 Rotary Postion Sensor.

The Curtiss-Wright (Product Brand: Penny & Giles) SRH280DP is a contactless rotary position sensor, which uses a factory-programmable, non-contact, Hall effect sensor system. SRH280DP operates from either 5Vdc regulated or 9-30Vdc unregulated power supply and is available with analog (0.5-4.5Vdc) or digital (PWM) output signals.

The sensor is factory programmable, allowing you to specify the output signal type, the measurement range (0-20° to 0-360° in 1° increments) and the output direction (clockwise or anticlockwise). The sensor has a 12-bit resolution (0.025%) over the selected measuring range, and operates from -40 to +140°C when powered at 5Vdc.

  • Contactless – Hall-effect technology
  • Dual output channels
  • 5Vdc or 9-30Vdc supply
  • Total sensor measurement range from 0-20° to 0-360°
  • Analog or Digital (PWM) output
  • 12-bit resolution over the selected measuring range
  • Low noise level (1mVrms) on the output signal
  • Operating temperature -40° to +140°C
  • Environmental protection to IP68
  • Crush-proof mounting flange with steel inserts
  • Rapid availability

The Curtiss-Wright (Penny & Giles) SHR280DP replaces the former models SRH280 and SRH280P, which is no longer available.

  • Specifications
    • + expand all
    • - collapse all


    Range 20-360º -
    Housing Material Shafted sealed plastic housing Note- spring shaft option
    Size - -
    Height, Length, Width H. 32.65mm x L. 28mm x W. 48mm -
    Mounting Use 2 x M4 socket head cap screws and M4 washer Maximum tightening torque 2Nm
    Weight <35g -


    Input 9 to 30Vdc (unregulated) and 5 ± 0.5Vdc (regulated) -
    Output 10- 360º rotation, ratiometric, or PWM input dependent 0-5Vdc, 0.5 to 4.5Vdc, PWM
    Over-Voltage Up to 40 (-40 to +60°C)
    Reserve-Voltage -
    Output Short-Circuit Protected -
    Connections Leadwire -
    Resolution Accuaracy 1º -


    Operating Temperature Range ­40°C to +140°C (5V supply) ­40°C to +135.7°C (9V supply) -
    Storage Temperature Range ­55°C to +140°C -
    Humidity Sealed -
    Protection Class IP68 (to 2m depth for 1 hour) or IP50 IP50 for unsealed shaft
    Vibration BS EN 60068-2-64:1995 Sec 8.4 (31.4gn rms) 20 to 2000Hz Random -
    Shock 3m drop onto concrete -
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