P133 Mid Stroke Linear Position Sensor

Position feedback for industrial and scientific applications

Available in any travel from 51mm to 100mm.

The P133 is a durable, affordable, high accuracy short stroke linear inductive position sensor designed for use in industrial and scientific applications.
The P133 is very compact and offers an excellent stroke to overall length ratio. Each unit is supplied calibrated to the exact travel required by the customer, for example, if your application requires 3" (75 mm) measurement then Positek will manufacture the sensor specifically for this length.The mechanical length and calibration will be set up for 25mm. The P133 is available with any travel from 51 to 100mm.

The overall performance, repeatability and stability are outstanding over a wide temperature range. The sensor has a rugged stainless steel body and plunger.
The P133 sensor is particuarly easy to install with either flanged housing or body clamps. The plunger can be supplied captive or free with either female M4 thread or spring loaded with dome end. The P133 is available with a wide range of electrical inputs/outputs, sealing up to IP65/IP67 dependant on connector/cable options and fully integrated EMC protection.

Body Diameter

Body Length (Flanged)

Travel: 51-70mm - Length 141.3
Travel: 71-100mm - Length 171.3

Body Length (Unflanged)

Travel: 51-70mm - Length 125mm
Travel: 71-100mm - Length 155mm

Push Rod Outside Diameter



any stroke from 51 mm to 100mm (eg 76mm)

Independant Linearity

<±0.25% at 20°C
<±0.1% available on request

Temperature Coefficient

<±0.01%/°C Gain & <±0.01%FS/°C Offset




<0.02% FSO

Frequency Response

>10KHz (-3dB);
>300Hz (-3dB); 2 wire 4-20mA


Output Signal and Output Load

Output Signal Output Load

0.5 to 4.5 V dc ratiometric 5K Ohms min

0.5 to 4.5 V dc 5K Ohms min

± 5V dc 5K Ohms min

± 10V dc 5K Ohms min

0.5 to 9.5 V dc 5K Ohms min

4 to 20mA (2 wire) 300 Ohms @ 24V

4 to 20mA (3 wire sink) 950 Ohms @ 24V

4 to 20mA (3 wire source) 300 Ohms Max

Supply Current

12 mA Typical 20 mA max. (Voltage Versions)  


Temperature Limits



-40 to +125°C (5V input only)
-20 to +85°C


-40 to +125°C

EMC Performance



EN 61000-6-2


EN 61000-6-3



IEC 68-2-6: 10g


IEC 68-2-29: 40 g


350,000 hrs 40°C Gf


IP65(connector) / IP67(cable)


Electrical Connections

Screened 3 core cable or integral connector

Detailed Dimensions

Refer to drawings below. Other options available.


Click for pdf
Request AutoCAD Drawing
Datasheet Click for pdf
Installation Sheet Click for pdf


Positek offers a range of options for its standard sensors.
Each sensor is manufactured to suit each customer's preferences.
If your requirement is outside the options given below,
Positek can modify/ redesign a sensor to suit your specific requirement.
Standard options are available as below:


Measurement range:

Factory set to any length from 51mm to 100mm in increments of 1mm.
For example, if your application requires 3" (76 mm) measurement
then Positek will manufacture the sensor specifically for this length.
The calibration will be set up for 76 mm.

Connector/Cable Options:

Option code
Connector - Hirschmann GD series Axial, IP65
Connector - Axial, IP67, M12 - 4 pin. Without trim adjustment
J + Z600
Connector - Axial, IP67, M12 - 4 pin.
With trim adjustment
J + Z601
Cable with short gland Axial, Gland, IP67
Cable with M12 gland Axial, Gland, IP67
Cable length - The standard length of cable supplied with a Positek position sensor is 50cm although you can specify any length you require, up to a maximum of 15000cm.
Specified in cm after the L or M
e.g. L200 for 200cm cable from axial cable gland

Mounting Options:
Option code
Front flange mount
Body clamps

Plunger Options:
Option code
Spring loaded (extended)
Dome end on plunger
Non captive plunger (not with Options 'R' or 'T')

<+/-0.1% FSO Linearity error



Get Price

Back To Top

Home Page Quality | Products | Part Number Coding | Case Studies |

| Help Desk | Enquiries | Distributors | How to find us |



Company logo





How To Buy


Product Index


ATEX logo


iso 9001:2000 logo

  Positek Limited

L6 The Link   Andoversford Industrial Estate   Cheltenham   Glos GL54 4LB   UK
Tel: +44 (0) 1242820027   Fax: +44 (0)1242 820615   Email: Sales@Positek.com

Registered in England Number: 2746707 - VAT Registration Number: GB 618 0533 56