GEOP 177

An advanced digital tool that is designed to provide high quality downhole pressure and temperature data.

GEOP 177 Downhole Gauge (Web) GEO PSI

GEOP 177 – Permanent Downhole Gauge

The GEOP 177 is an advanced digital gauge that is designed for artificial lift systems and observation wells at elevated temperatures that require quality downhole pressure and temperature data. This gauge is able to withstand vibrational forces exerted by high horsepower progressive cavity and ESP pumps.

Lightning Resistant

Easy-ConnectTM Cablehead

Multi-Gauge Compatible

Technical Specifications

The GEOP 177 Downhole Gauge is an advanced digital tool that is designed to provide high-quality downhole pressure and temperature data. Due to its integrated smart technologies, up to 10 gauges can run reliably off of a single downhole cable. And it can do all of this reliably at temperatures up to 177°C!

Our Reliability Job 1TM mindset means that long-term stability and performance are built into every tool we make. However, ensuring the reliability of digital components at high temperatures is no easy task. That’s why we have designed our GEOP 177 gauge with full hybrid circuitry to maximize performance and long-term high-temp reliability.


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 177 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 (15,000 psi)

The GEOP 177 is designed to accurately measure pressure within available ranges between 1000 – 15,000 psi.


Temperature (177°C)

The GEOP 177 is designed to accurately measure temperatures up to 177°C (351°F)


Pressure & Temperature

Sensor Type


Input Voltage Range

9-24 VDC



Available Pressure Ranges

1,000  1,500  2,000  5,000  10,000  15,000 psiA

Pressure Accuracy

± 0.05% Full Scale

Pressure Resolution

0.0003% Full Scale

Temperature Rating


Temperature Accuracy

± 0.5°C

Long-Term Vibration Resiliency

10g at 10-2000Hz (1)

Construction Material

Stainless Steel 316L or Inconel 718

Overall Length

[Including Cablehead]

12.05″ / 30.60cm

Outside Diameter

0.875” / 22.22mm (2)

Sample Intervals

Every 0.10 Seconds or Slower

Process Connection

1/4″ Autoclave HF4

Patented Easy-ConnectTM Cablehead


Leak Proof Design


Pressure Testable 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)

(1) Based on test results from GEO-PRO-117.
(2) For gauges with pressure ratings of 750 psi or below the maximum OD may be 0.95” / 24.13mm to account for lo-hyst transducer. For pressures exceeding 10,000 psi the OD may be 0.875”.

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.