Domestic & Industrial Flue Gas Analysers

Digital Temperature & Pressure Meters

Natural Gas Leak Detectors

Air Velocity Instruments

Personal CO Monitors

Water Flow & Temperature Measurement

The Importance of Testing and Servicing your Flue Gas Probe & Filtration System

It is vitally important that the integrity of your Flue Gas Probe is maintained in order to ensure continued accurate results on your Flue Gas Analyser.

This is something a lot of service and calibration houses neglect but we don't at BlueLine® Instruments. That's why we always ask you to return both instrument and probe when its time for your annual service


Complete Range of Accessories.

The BlueLyzer ST is the  smallest, lightest and most function packed flue gas analyser in the UK for domestic boiler testing. There are three instruments in the range, the Standard ST as described below, the STDP unit which adds a differential pressure option and the STDP+ which includes a high range CO Sensor ( 0-40,000ppm).

Two 'K' Type temperature connection points and a separate temperature measurement function on the instrument allows dual temperature readings for use with Clamp Probes and other temperature accessories as well as the standard flue gas and ambient readings.

A separate Pressure Loss menu allows Let By and Tightness testing.


A unique filtration system in the sampling probe line ensures that your instrument stays dry at all times.

All these functions, coupled with an optional 5 Year Fixed Price Service Contract makes the BlueLyzer instrument the most cost effective flue gas analyser available today.




  • includes 5 annual services with sensor and consumable parts replacement.
  • includes carriage charges so the instrument collection and delivery is covered.
  • includes 5 year instrument warranty as long as the instrument is serviced every year of the contract
  • excludes accidental or deliberate damage to the instrument.


includes all Bronze options plus

  • 'Duration of Service' hire instrument. How this works is when your service is due we send a courier in with an instrument and probe / filter assembly (see right)  in a box. You open the box take out the hire instrument and probe and replace them with your own while the courier waits. Inside the box is a return address label to us. All you have to do is close the box, stick the label on the outside and give it back to the courier - job done ! 


includes all Silver options plus

  • Accidental Damage to the instrument. If you smash it, run over it or drop it down the toilet its covered - Fully Comp !!

Bluetooth (BLE) & Infra Red Printers available.

What makes the BlueLyzer so reliable ?.....

Full Instrument Control from APP or PC.

Supplied as Kit in Robust Carry Case.

  • Measures CO, O2, CO2, Efficiency, Ratio, Flue Gas and Ambient Temperature, Draft (Pressure), Pressure Loss ( Let By & Tightness Test), Timed Ambient CO ( Room) measurement, Dual Temperature (for Clamp Probes)
  • Weighs 275g and measure 143 x 66 x 37mm
  • TFT Colour Screen and simple push button controls
  • Battery life up to 12 hours in 'Eco' mode
  • Robust protective rubber cover with magnets for boiler mounting
  • Micro SD Card for logging results and printing later via PC
  • Infra Red or Bluetooth (BLE) Printer available
  • FREE APP or Software for complete two way control of the instrument - IOS /  Android / PC
  • Real Time Data Logging via APP or Software
  • Save data as QR Code for immediate scanning and onward transmission
  • Fully complies to BS EN 50379 Parts 1 & 2

You can also purchase your own Probe Leak Detection Kit......

Data Handling on your BlueLine S6600 Family instrument....