RASI300 – Flue Gas Analyser for domestic installations


Compact and rugged flue gas analyser, with touch screen colour display, suitable for use on domestic gas and oil boilers

  • 5 Years Warranty including O2 & CO sensors
  • CO sensor 0-10000 ppm
  • Standard Bluetooth® communication for use with MRU4U mobile app ( IOS/ANDROID)
  • Menu for Flue Gas, Timed Tightness/let-By Test, CO room Build-up, T-Flow/T-Return
  • Display O2, CO, CO2, Ratio, Flue & Ambient Temperatures, efficiencies( N/G/C), excess air, flue gas dewpoint
  • Display gas pressure and combustion measurements at the same time
  • Multifuel (16) including Nat Gas, LPG, Light/Heavy Oil, Wood Pellet, Wood dry and 4 x user define
  • Li-Ion Rechargeable batteries for long lasting charge – Mini USB charging
  • New 6 Lines touch screen colour display
  • Data Logging with site ID, IRDA, SD card
  • Optional NO/NOx upgrade


The new RASI 300 is an high quality Flue Gas Analyses suitable for gas and oil domestic installations

Designed for the UK market
Designed especially for the UK market, the RASI 300 features a unique touch screen colour display and task oriented menu which provide the user with an easy access to all the functions of the gas analysers: flue Gas Analysis, direct draught measurement, pressure and differential pressure measurement, timed letby and tightness test, flow and return temperatures and CO ambient measurement

Meets BS 7967 requirements
This flue gas analyser have been tested to BS EN 50379 and meets the requirements of the BS 7967 and Gas Safe Technical bulletin TB143

The RASI 300 also have a built-in large memory which can store up to 1000 data set,
Li-ION rechargeable batteries which charge trough USB port, IRDA printer and support up to 18 pre-programmed fuels.

Large Memory
Rasi300- flue gas analyser storage menuThe Rasi 300 features an advanced memory function to store up to 1000 data sets. Store value can be review on the large colour display of the analyser or exported to the standard micro SD card ( card not supplied) to a CSV file. Saved data can also be printed using the remote IRDA printer.

Timed Tightness and let-by test
Rasi300- let-by and tightness testA fully programmable function facilitate the tightness and let by test procedures. Heating engineers can select the time and duration to suits the application. Data are presented on the flue gas analyser display both in text and graphical form.

Quick and easy to use
web-rasi300–taks-menuThanks to the fast auto-zero , the analyser is ready to be used in 30 seconds. The smart task menu make it easy to select the desired function.

Additional information


CPA1 KIT, Printer Kit, Professional Kit, Standard Kit


There are no reviews yet.

Be the first to review “RASI300 – Flue Gas Analyser for domestic installations”

Your email address will not be published. Required fields are marked *

Make enquiry

RASI300 – Flue Gas Analyser for domestic installations

    Skip to toolbar