Modified atmosphere packaging is commonly used to extend the shelf life of oxygen-sensitive food and pharmaceutical products by flushing packages with gases like nitrogen to displace air. An oxygen analyser measures the percentage of oxygen remaining inside a package through a needle inserted into the package through a septum seal. The analyser directly displays the oxygen level, with less than 1.5% oxygen desired for effective modified atmosphere packaging, as higher oxygen levels can degrade product stability and shorten shelf life. The HA-One+ oxygen analyser features a user-replaceable oxygen sensor, AA battery power, and measures oxygen levels from 0.0-99.9% over 15-20 seconds.

1. Oxygen Analyser
Headspace Oxygen Analyser
Summary : Modified Atmosphere Packaging (MAP) is now used commonly to enhance the shelf life
of food and pharmaceutical products that are sensitive to the presence of Oxygen or other gases.
The process of MAP involves flushing of nitrogen (or other gas / mixes) to displace the air inside the
package. Sometimes the flushing happens incorrectly or inadequately thereby allowing an
undesirable amount of oxygen to remain inside the package and reduce the shelf life or stability of
the product.
Test Method : A septum seal sticker is applied to the package (pouch / blister / tetra-pack / bottle,
etc and a needle in pushed through it. The gas inside is allowed to come out through the needle and
is analysed by an Oxygen (or other gas) sensor. The instrument shows the O2% directly.
Ambient air has 20.9% oxygen. MAP targets to flush out this air and bring down the O2 level to under
1.5%. Presence of O2 in excess of 2% can have a degrading effect in product stability and shelf life.
Models Available :
Model : HA-One+
With User-Replaceable O2 Sensor
Sensor Life : Usually 24 months (2 years) in standard
operating conditions.
Battery : Regular AA Cells (Alkaline)
Battery Life : 5000 hours or 6 Months. (Approx)
Tech Specs :
Working Range : 0.0-99.9 O2 (gas)
Resolution : 0.1%
Accuracy : 3% of O2 Reading
Sensing Time : 15 - 20 secs
Calibration Reminder: One week timer started with every calibration ,
“CAL” icon displayed on LCD
Operating Environment : 15°C - 40°C, 0 - 95% RH non-condensing
Warning : This instrument is to be used indoors for Food Packaging (MAP)
applications only. Not for use in hazardous areas or for use with flammable gases
Supplied with :
1) Syringe Needles (18 Gauge) 5 nos TO BE USED IN DRY FOODS ONLY.
2) Syringe Filter (< 0.5 µm) 5 nos Minimum gas in pouch should be > 100 ml
3) Septum Stickers 1 roll or 500 pieces.
Extra Syringe Needles, Septums and Filters available.