PurgEye 100 Weld Purge Monitor

Justram’s Argweld PurgEye 100 is the best weld purge monitor available that offers excellent value. The new improved design comes as a compact handheld unit that fits in the palm of your hand, has a heavy duty aluminum housing and a large screen display.

Supplied with Rugged Heavy Duty, Impact Resistant, Weather Proof Case with Custom cut PE Foam.


Moniteur de purge de soudure

Moniteur d’oxygène résiduel – Locations disponibles



PurgEye 100 Technical Details

The Best Weld Purge monitor your money can buy.

User Instructions - New Heavy Duty

Download User Instructions for the Justram PurgEye100 Weld Purge Monitor. NEW Heavy Duty Design with Aluminum Housing. Downloadable file Justram PurgEye API100 HD NEW

User Instructions - Plastic / rubber Housing

Download User Instructions for the Justram PurgEye100 Weld Purge Monitor, for monitors sold till June 2023. This monitors have a plastic housing with an optional rubber protective housing. Downloadable file Justram PurgEye 100 User Instructions


Argweld PurgEye 100 IP65

PurgEye 100 weld purge monitor is a trace oxygen monitor that measures the residual oxygen in the purged area. This is a hand held weld purge monitor, weighs less than a kilogram and is easy to handle.

PurgEye 100 measures purge levels down to 100ppm or 100 parts per million, i.e. 0.01%. The unit comes with IP65 dust and water protection aluminum housing so it is safe for outdoor use. The Storage and shipping case is dustproof and waterproof IP67 rated.

Justram PurgEye 100 Ordering details

Justram PurgEye 100 IP65 Weld Purge Monitor Part # API0100 – HD

Optional : Flexible Gorilla Tripod for Hands Free use Part # APIS 104

Optional : Filter for PurgEye 100 to protect sensor from contaminants APISZFC-74

Replacement Sensor – PurgEye 100 Part # APIS101 – For Models with Plastic Housing

Replacement Sensor – PurgEye 100 Part # APIS100 – For NEW Models with Aluminum Housing

Sensor Replacement Tool Part # APIS102

Justram PurgEye 100 Weld Purge monitor always available from stock.

PurgEye 100 Kit Contents

Justram PurgEye 100 IP65 API0100 Purge Monitor, Comes complete with

  • A Heavy Duty Weatherproof, Impact Resistant carrying case with fitted foam.
  • Calibration certificate
  • Hose to extract sample gas to measure purge level
  • Hose fitted with an aspirator bulb to pump the sample gas from the weld area being monitored
  • A probe to insert in the weld zone to extract sample gas.
  • Two AAA batteries are supplied.
  • PurgEye 100 product manual. 
  • Optional Tripod for hands free use of the purge monitor, will enable ease of use.
  • Optional Filter to prevent contaminants from weld area damaging the sensor

Justram Argweld Weld Purge Monitor with Heavy Duty case

Manufactured by Huntingdon Fusion, we offer Argweld PurgEye 100 purge monitors with a modified Rugged Heavy Duty, Impact Resistant, Weather Proof Case with Custom cut PE Foam. Lightweight and stylish, heavy duty case stands up to every environment. There’s no trail too challenging for its rugged shell and tough Powerclaw latching system.

Weatherproof and designed for high-impact conditions. Custom Fit foam provides perfect fit for all the essential components.

Auto Calibration Feature

Calibrate your own Argweld® PurgEye® 100 IP65 Weld Purge Monitor® at any time without having to return it to the factory and each time you weld to ensure that your readings are the most accurate.

The calibration facility even has the ability, at the touch of a small button to calibrate both at atmospheric levels of 20.94% and at 0.01% (100 ppm) level of oxygen.

Compact Design With Enlarged Easy to Read Digital Screen

Easy to read digital screen shows the operator when it is safe to start welding ensuring a perfect welding environment for a clean weld. The new enlarged screen uses 24 mm size digits for easy viewing at longer distances from the work station.

Justram PurgEye 100 Compact Hand held Unit

Low Sensor Indicator

You will never be with an unusable monitor! The low sensor level signal in the Argweld® PurgEye® 100 IP65 Weld Purge Monitor® gives plenty of warning time to obtain a new sensor which you can simply fit yourself.

Low Battery Indicator

The PurgEye® 100 IP65 Weld Purge Monitor®  has a low battery indicator that appears in the corner of the screen. This was a feature we designed for the first time in our earlier model, our obsolete Mark V (MKV) meter which used old technology in comparison to this revolutionary latest PurgEye® 100 IP65 model.

Enlarged Easy to Read Digital Screen

Easy to read digital screen shows the operator when it is safe to start welding ensuring a perfect welding environment for a clean weld. The new enlarged screen uses 24 mm size digits for easy viewing at longer distances from the work station. These digits are approximately 41% larger than our previous out of date model, the Mark V (MKV), which is now obsolete.

Tripod Mount

A rugged tripod mount has been integrated into the housing. This allows the Argweld® PurgEye® 100 IP65 Weld Purge Monitor® to be firmly mounted on a tripod of your choice. With mounting the instrument on a tripod, easy visual observation is provided so you can see the Argweld® PurgEye® 100 IP65 Weld Purge Monitor®  from any part of the working space.

A range of tripods or other fixing devices is available on which you can mount and station your Argweld® PurgEye® 100 IP65.

Automatic Sleep Mode

When Argweld® PurgEye® 100 IP65 Weld Purge Monitor®  registers more than 20% oxygen for periods longer than 1 hour, it will automatically switch off to conserve battery life.

Weld Purge Monitor or Oxygen Sensors?

Justram’s Argweld weld purge monitors are far better than an oxygen monitor. An Oxygen monitor is designed to measure oxygen content in confined spaces and detect levels of oxygen when they fall below atmospheric oxygen level of 20.94%. Purge monitors are way more sensitive and are designed to detect oxygen levels in PPM or parts per million. A good weld requires the least possible oxygen level.

PurgEye 100 Replacement Sensors APIS101 and APIS101-2

PurgEye 100 Monitors come with a new and improved sensor that far surpasses the life in comparison to their predecessors or what our competition offers. The electro-chemical sensor has proven to provide life between 20-30 months. The more the unit is used for purging the better life you get from the sensor. The APIS101 is for purge monitors with plastic housing sold to June 2023. The APIS101-2 is for purge monitors with Aluminum Housing sold from July 2023. Please verify the serial number of your purge monitor with us, to confirm the right model of sensor.

PurgEye 100 Laboratory Calibration

We offer yearly calibration for PurgEye 100 purge monitors to factory approved procedures at our Aurora, ON office.

We calibrate and repair the PurgEye 100 units, API0100. Please send in your purge monitors for yearly calibration, sensor replacement or repairs

Chart to Convert PPM to Percentage Concentration

The chart below is simply provided to help explain the relationship between parts per million and percentage of oxygen.

Oxygen Percentage Parts Per Million
100%=1,000,000(One million ppm)
10%=100,000(One hundred thousand ppm)
1%=10,000(Ten thousand ppm)
0.1%=1,000(One thousand ppm) good level for Weld Purging of duplex and stainless steels
0.01%=100(One hundred ppm)
0.001%=10(Ten ppm) suitable level for welding titanium and UHP joints in stainless
0.0001%=1(1 ppm)

Argweld PurgEye Weld Purge monitor range and options.

We offer a wide selection of Weld Purge Monitors.

Click on the link for viewing the PurgEye family of purge monitors

We also offer PurgEye 200 IP65 Hand Held Purge Monitor which is also a hand held unit, but comes with an integral mechanical pump to continually extract sample gas and provides data logging capabilities. This monitor is capable of measuring down to 0 PPM.

For our range of products Click Here

Need more information, please refer the manufacturer Huntingdon Fusion by clicking here

We ship all across Canada and USA from stock.