GEO4-20 105

A cost-effective digital sensor with analog output designed to measure real-time pressure or fluid level.


GEO4-20 105 – Permanent Downhole Gauge

The GEO PSI GEO4-20 105 IECEx certified 4-20mA pressure gauge is the first cost-effective solution designed for measuring real-time pump intake pressure for artificial lift systems in oil & gas wells. This gauge is able to withstand vibrational forces exerted by high horsepower progressive cavity, rod, and ESP pumps.

Easy-ConnectTM Cablehead

Leak-Proof Design

Intrinsically Safe

Technical Specifications

Product Development Background

The GEO4-20 105 IECEx certified pressure gauge was designed to be the most accessible of all of our gauges. The primary focus of this tool was for it to maximize reliability, be cost-effective, and for it to be easy to install and integrate into a downhole system.

It is engineered to connect to metal armoured cables (TEC) via metal-to-metal sealing techniques. Our innovative patented Easy-ConnectTM Cablehead System reduces installation errors and improves system reliability. The gauge body is welded and requires no elastomer. Ingress protection is provided by a glass feed-through system and dialectic oil chamber.

Compatible With

The GEO4-20 105 gauge is designed for versatility and universal compatibility. Below are a few of the common accessories that are used to complete the GEO4-20 monitoring system.

Real-Time Data Applications



Pressure (3,000 psi)

The GEO4-20 105 is designed to accurately measure pressure within available ranges between 50 - 3,000 psi.



Sensor Type



4-20 mA

Input Voltage Range

8-30 VDC

Available Pressure Ranges

50  100  200  300  500  1,000  1,500  2,000  3,000 psiA

Pressure Accuracy

± 0.1% Full Scale (1)

Temperature Range

-40°C to 105°C (-40°F to 221°F)

Vibration Resistance

10g at 10-2000Hz

Shock Resistance

80g, 3-axes

Impact Resistance

500g, 1-axis

Construction Material

Stainless Steel 316L

Overall Length

7.67″ / 194.7mm

Outside Diameter

0.950″ / 24.1mm

Process Connection

1/4″ NPT Male

Meets Or Exceeds The Following Standards

IECEx Ex ia IIB T3 Ga (2)(3) Intrinsically Safe

Applicable Standards

IEC 60079-0: 2007-10
IEC 60079-11: 2006

Patented Easy-ConnectTM Cablehead


Leak-Proof Design


Pressure Testable Design


ISO Certified Manufacturing


(1) Accuracy calculated as a statistical average from a sample of 100 units after 4-point verification at 20°C with a maximum single-point error of ±0.5% FS.
(2) When installed according to approved instructions. Cert QPS 15.0018x available at

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

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Contact Information

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Downhole Conditions

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Packer/Obstruction #1

Packer/Obstruction #2

Packer/Obstruction #3


Completion Data

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Surface Casing


Production Casing

2nd Production Casing


2nd Tubing




Open Hole



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