GEOP 127 Slim

The GEOP 127 Slim’s 1/2″ (12.7mm) diameter makes it the perfect solution for tight spaces. It provides high-quality pressure and temperature data for artificial lift optimization and reservoirs engineering.


GEOP 127 Slim – Permanent Downhole Gauge

This slim gauge provides a means of collecting high quality real-time downhole pressure and temperature data in tight spaces. Despite its slim profile, it features the same quality and reliability you would expect from any other GEO PSI gauge.

Lightning Resistant

Slim Design

Leak-Proof Design

Technical Specifications

The Absolute Best Reliability for Pressure & Temperature

Our piezoresistive downhole gauges provide the absolute best reliability and longevity for measuring downhole pressure & temperature. At GEO PSI we design and manufacture every component of our gauges in order to ensure that they can withstand even the most hostile downhole conditions, while delivering exceptional value.

Compatible With

The GEOP 127 Slim gauge is designed for versatility and universal compatibility. Below are a few of the common accessories that are used to complete the GEOP monitoring system.

Real-Time Data Applications



Pressure (6,000 psi)

The GEOP 127 Slim is designed to accurately measure pressure within available ranges between 500 – 6,000 psi.


Temperature (127°C)

The GEOP 127 Slim is designed to accurately measure temperature up to 127°C (261°F).


Pressure & Temperature

Sensor Type


Input Voltage Range

9-24 VDC

Downhole Telemetry

Digital Phase Shift Key

Available Pressure Ranges

500  1,000  3,000  6,000 psiA

Pressure Accuracy

± 0.05% Full Scale

Pressure Resolution

0.0003% Full Scale

Pressure Drift

< 3 psi per year

Temperature Rating


Temperature Accuracy

± 0.5°C

Temperature Resolution

0.01°C at 1 Second

Construction Material

Stainless Steel 316L or Inconel 718

Long-Term Vibration Resiliency

10g at 10-2000Hz

Overall Length

8.25″ / 20.96cm

Outside Diameter

0.5” / 12.7mm

Sample Intervals

Every 0.10 Seconds or Slower

Process Connection

10-32 Valco

Patented Easy-ConnectTM Cablehead


Leak Proof Design


Field Programmable


ISO Certified Manufacturing


Smart Technologies

Live transmitting of: Device Configuration, Device Health, Downhole Head Voltage, Current, Calibration Files, and Downhole Serial Number Identity

Multi-Gauge Compatible

Up to 10 Gauges (In Any Combination Of Piezoresistive Or Quartz) On A Single Downhole Tubing Encapsulated Cable (TEC)

Tested To The Following Standards

IEC 61326

Looking for the necessary components to build a complete fit for purpose system for your well?

Fill out this short questionnaire and one of our experienced team members will show you a solution designed to match the specific requirements of your well.

Visit this page on desktop to complete a brief questionnaire, or visit our contact page to get in touch with one of our experienced team members.

Contact Information

Provide us with the necessary contact, and location information.



Downhole Conditions

Tell us about the downhole environment present in your well.


Please describe the type of environment the sensors will be in.



Packer/Obstruction #1

Packer/Obstruction #2

Packer/Obstruction #3


Completion Data

Please provide us with as much information on your specific completion as possible.

Surface Casing


Production Casing

2nd Production Casing


2nd Tubing




Open Hole



What are the major application(s) for the downhole sensor(s)?

What are your preferred wellhead exit options?

What are the surface electronics required?






Want to know more?

One of our team members would be happy to help.