Welcome to Test4Less


Available for orders over £100


Apply for a credit account


Free gifts and exclusive benefits


Elevate your skills with us


Exclusive offers, shop today


For all orders over £100


Professional support


On many products


Enjoy Exclusive Benefits


Elevate Your Skills

Testo 300 Flue Gas Analyser (Choice of Sensor) 0633 3002 78

  • Testo 300 Black Edition handset only
  • Use your existing Testo 327 / 320 probes and accessories
  • Large 5-inch HD display with touch screen
  • Includes O2 and CO sensor up to 4,000 ppm
  • OPTIONAL: Nitric Oxide (NO) sensor upgrade
Free Shipping

Spend over £100 on any new goods order and receive automatic free shipping


Points make purchases! For every £1 spent, earn back 1p that can be spent on any future new goods purchase

Our Price Promise

We offer a Price Match Promise! Find an equivalent tester for a cheaper price on a competitor site, and we’ll do our best to match it

Express Delivery & Calibration

Express Delivery is currently unavailable for customers wishing to add calibration to their New Goods order. For more information, visit our Delivery Information page. 

£519.35 (ex VAT)

£623.22 (inc VAT)

Earn 519 – 768 points

Usually Ships In 3 to 5 Business Days
Select a Socket & See VVD Pro, VIP150 or ATP Multimeter at checkout!

Testo 300 Flue Gas Analyser Black Edition (Handset Only) 0633 3002 78

Testo 300 Flue Gas Analyser Black Edition Kit VariantsHandsetStandard KitAdvanced Kit
Testo 300 Flue Gas Analyzer
USB Mains Unit, Including Cable
Compact Basic Flue Gas Probe
Instrument Bag
2 x Clamp Probes (NTC) For Temperature Measurements On Pipes
Pressure Connection Kit With 2 Silicone Hoses

With the testo 300, you will be equipped for the most important measurements involving heating systems: the TÜV-tested testo 300 flue gas analyser is supplied with O2 and CO sensor up to 4,000 ppm. The testo 300 handset can be used in conjunction with your existing testo 327 / 320 accessories such as the flue probe, carry case, temperature clamps and differential pressure kit.

Smart, intuitive, efficient: easy operation in day-to-day work

  • Smart-touch display for intuitive operation of the flue gas analyser: the display responds without delay – just as easy as on your smartphone
  • Get the measurement result faster: clearly structured measurement menus for all relevant measurements
  • Create documentation (including measuring value, measuring location, customer data) easily on site
  • Save PDF measurement reports directly in the instrument and always have them available
  • Signature function: your customer can sign measurement reports directly on the instrument
  • E-mail measurement reports directly to the office or to customers via WLAN (hotspot)
  • Large 5-inch HD display – enables you to see all the system’s parameters immediately
  • Testo interface function for direct data transfer of measuring values to industry/customer-specific software*
  • Ready to use straight away: in standby mode, the testo 300 is ready to measure at the touch of a button. Use it straight away with the next customer – because you no longer need to wait for the end of the zeroing phase
  • Integrated Bluetooth® interface: immediate printout of the measuring values on site with optional printer (printer available separately)

*Note: the manufacturer has to integrate an interface into the industry software to use the function

Other great features

  • 10-hour rechargeable battery life:  an average measurement period of 2 hours means the flue gas analyser is capable of being used for one week
  • Integrated, extra-strong magnets for easy fixing during the measuring process

What’s included

  • testo 300 flue gas analyser with O2 and CO sensor up to 4,000 ppm (0633 3002 78)
  • USB mains unit, including cable (0554 1105)

Please note: This is the testo 300 handset ONLY version.


There are no reviews yet.

Be the first to review “Testo 300 Flue Gas Analyser (Choice of Sensor) 0633 3002 78”


Product Question
Plain text only. HTML is not allowed.


Write Your Own Review


There are no reviews yet.

Be the first to review “Testo 300 Flue Gas Analyser (Choice of Sensor) 0633 3002 78”

Related Products