Testo 300LL Long-life Flue Gas Analyser: Printer Kit

Testo

£1,783.00 / £2,139.60 incl VAT

⚡ Draught and gas zeroing function: the flue gas probe does not need to be removed from the flue pipe
⚡ Standby mode allows the user to operate the analyser without having to wait for the zeroing phase to be complete
⚡ Fast and intuitive operating system
⚡ Same response time as a smartphone
⚡ 5-inch HD display

Available on back-order

SKU: 0564 3004 89 Category: Brand:

Description

Testo 300 Long Life Flue Gas Analyser Printer Kit

⚡ Please note these products are made to order due to specific components and take a 5 – 10 days to dispatch, thank you. ⚡ 

Product Description:

The Testo 300 Long Life Flue Gas Analyser is equipped with an O₂ and CO sensor. It is possible to configure the Testo 300 to include a NO sensor, this may be done at the time of purchase (please contact our sales team for further details), or can be added retrospectively.

The sensors supplied with the Testo 300 Long Life Flue Gas Analyser are TϋV-tested in accordance with first German Federal Immission Control Ordinance (BImSchV) and EN 50379 Parts 1-3. They have a service life of approximately six years adding to both the cost- and work-efficiency of these instruments. The longevity of these sensors reduces both downtime and expenses due to the removal of at least one sensor replacement cycle.

Further to this, the Testo 300 Long Life Flue Gas Analyser includes automatic sensor protection, again working to improve the longevity and reliability of these sensors. Moreover, when the product is registered, Testo will supply the user with a five-year warranty on the O₂ and CO sensors (without maintenance contract).

With regards to the Testo 300 Long Life Flue Gas Analyser’s measurement ranges, when supplied as standard, with only the O₂ and CO sensors integrated, it features the following measurement ranges:

  • O₂: 0 to 21 vol. %
  • CO (without H₂ compensation): 0 to 4000 ppm
  • CO (with H₂ compensation): 0 to 8000 ppm
  • CO (with H₂ and fresh air dilution): 0 to 30000 ppm

In addition to performing the above measurements, the Testo 300 Long Life Flue Gas Analyser can be used to perform integrated fine pressure and 4 Pa measurements in accordance with legal requirements.

Furthermore, the Testo 300 Analyser can be used with a variety of OPTIONAL accessories to perform measurements and tests such as:

  • Measuring NO between 0 and 3000 ppm (as mentioned above)
  • Gas flow pressure
  • Differential temperature
  • Ambient CO
  • Gas pipe testing

These measurement functions, as well as the Testo 300 Long Life Flue Gas Analyser’s adaptability, make it suitable for inspecting heating systems.

The Testo 300 Long Life Flue Gas Analyser is also equipped with a multi-functional handle which facilitates the user’s ability to attach a variety of quick-change probe shafts (available separately). For instance, the user is able to connect a longer probe shaft for inspecting flue gas pipes with larger diameters; alternatively, when inspecting difficult-to-access areas the user may attach a flexible probe via the handle. This adds to the practicality of the Testo 300 Long Life Flue Gas Analyser, expanding its scope-for-use.

This instrument is also equipped with extra-strong magnets, ensuring that it is kept in place throughout the measurement process.

Also working to improve the Testo 300’s practicality, as well as its efficiency, is the integrated draught and gas zeroing. This allows the user to zero the instrument without removing the flue gas probe from the flue pipe. Moreover, when placed in Standby mode, the Testo 300 Long Life Flue Gas Analyser is ready to use at the touch of a button. This eliminates the need to wait until the end of the zeroing phase before commencing measurements, again increasing work efficiency.

Additionally, the Testo 300 Long Life Flue Gas Analyser includes a smart-touch display enabling intuitive and fast operation of the analyser. The Testo 300’s display has the same response time as a smartphone. For further information regarding this smart-touch technology, please see the video below.

Measurements are viewable via the Testo 300 Long Life Flue Gas Analyser’s 5-inch HD display. This large display allows the user to view all the measurement parameters instantly and its simply structured measurement menus enable the user to access the relevant data quickly.

In addition to conducting measurements, the Testo 300 Long Life Flue Gas Analyser can be used to create PDF measurement reports, and documentation containing details such as the measuring value, measuring location and customer data. Reports and documentation can be created on-site and saved to the Testo 300 Long Life Flue Gas Analyser for easy recall.

Reports can be exported via email (using WLAN) to the user’s office and/or to the client. Furthermore, the Testo 300 Long Life Flue Gas Analyser includes a signature function allowing the client to sign measurement reports saved on the instrument; again, this works to improve work efficiency and convenience.

Alternatively; it is possible to send measurements to print via the integrated Bluetooth interface. A compatible Testo printer is required; this is included in the Testo 300 Long Life Flue Gas Analyser – Standard Kit WITH Printer.

Additionally, due to the inclusion of a Testo interface function, it is also possible for the user to export data from the Testo 300 Long Life Flue Gas Analyser to an industry- and/or customer-specific software program. **

Data can be transferred to the user’s PC and organised using the supplied Testo Easyheat Analysis Software. This software can also be used to manage customer and worksite data, as well as configure the Testo 300 Long Life Flue Gas Analyser.

The Testo 300 Long Life Flue Gas Analyser is an adaptable, reliable and versatile flue gas analyser optimised for longevity; to this end, it includes a rechargeable battery with a life of up to ten hours. The cost-effective, efficient and practical Testo 300 Long Life Flue Gas Analyser is ideal for professionals measuring heating systems.

Key Features:

  • Available in two standard kits with or without a printer
  • Equipped with O₂ and CO sensors
  • An OPTIONAL NO sensor can be added retrospectively or at the time of purchase (please call for details)
  • Sensors are TϋV-tested in accordance with first German Federal Immission Control Ordinance (BImSchV) and EN 50379 Parts 1-3
  • Sensors have a service life of approximately six years
  • Automatic sensor protection
  • 5-year warranty (from Testo) on the O₂ and CO sensors when the analyser is registered
  • O₂: 0 to 21 vol. %
  • CO (without H₂ compensation): 0 to 4000 ppm
  • CO (with H₂ compensation): 0 to 8000 ppm
  • CO (with H₂ and fresh air dilution): 0 to 30000 ppm
  • Measure NO between 0 and 3000 ppm (OPTIONAL, please call for details)
  • Gas flow pressure measurement (OPTIONAL)
  • Differential temperature measurement (OPTIONAL)
  • Ambient CO measurement (OPTIONAL)
  • Gas pipe testing (OPTIONAL)
  • Suitable for inspecting heating systems
  • Multi-functional handle facilitates the attachment of quick-change probe shafts
  • Extra-strong magnets for ensuring the tester is kept in place throughout the measurement process
  • Integrated draught and gas zeroing
  • Ready-to-use at the touch of a button when placed in Standby mode
  • Intuitive, smart-touch display
  • Same response time as a smartphone
  • 5-inch HD display
  • View all measurement parameters instantly
  • Access relevant measurements quickly via the simply structured measurement menus
  • Create PDF measurement reports
  • Create documentation detailing the measurement value, site location and customer data
  • Save reports and documentation to the analyser
  • Send reports via email (using WLAN)
  • Integrated Bluetooth interface
  • Send measurements to print using a compatible Testo printer and the Bluetooth interface
  • Transfer data to a PC
  • Use the supplied Testo Easyheat Analysis Software to manage measurement, customer and worksite data
  • Configure the analyser using the supplied Easyheat Software
  • Testo interface function for exporting data to an industry-/ customer-specific software program**
  • Supplied with a rechargeable battery with a life of up to ten hours
  • Cost-effective, efficient and practical flue gas analyser
  • Ideal for professionals measuring heating systems

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

What’s Included?

  •  Testo 300 Long Life Analyser
  • USB Mains Unit with Cable
  • Compact Basic Flue Gas Probe
  • NOx Spare Dirt Filters with Compact Probes
  • Testo Easyheat Analysis Software
  •  Carry Case
  • Testo BT Printer
  • Testo Printer Rolls

Testo 300 Long Life Flue Gas Analyser Technical Specifications

Measurement ParameterMeasuring RangeAccuracy (±1 Digit)Resolution
O₂ measurement0 to 21 vol.%±0.2 vol.%0.1 vol.%
CO measurement (without H₂ compensation)0 to 4,000 ppm±20 ppm (0 to 400 ppm)1 ppm
±5% of m.v. (401 to 2,000 ppm)
±10% of m.v. (2001 to 4,000 ppm)
CO measurement (with H₂ compensation)0 to 8,000 ppm±10 ppm or ± 10% of m.v. (0 to 200 ppm)1 ppm
±20 ppm or ± 5% of m.v. (201 to 2,000 ppm)
±10% of m.v. (2,001 to 8,000 ppm)
CO measurement (with H₂ compensation and dilution)0 to 30,000 ppm±100 ppm or ± 10% of m.v1 ppm
Combustion ratio (calculated)0.0001
NO measurement optional upgrade0 to 3,000 ppm±5 ppm (0 to 100 ppm)1 ppm
±5% of m.v. (101 to 2,000 ppm)
±10% of m.v. (2,001 to 3,000 ppm)
Efficiency testing (Eta)0 to 120%0.1%
Flue gas loss0 to 99.9%0.1%
CO₂ determination (digital calculation from O₂)Display range 0 to CO₂ max.±0.2 vol.%0.1 vol.%
Draught measurement-9.99 to +40 mbar±0.005 mbar (0 to 0.1 mbar)0.001 mbar (0 to 0.1 mbar)
±0.02 mbar (0.1 to +3.00 mbar)0.01 mbar (remaining meas. range
±1.5% of m.v. (+3.01 to +40 mbar)
Pressure measurement-100 to 200 mbar±0.5 mbar (0 to +50.0 mbar)0.01 mbar
±1% of m.v. (+50.1 to +100.0 mbar)
±1.5% of m.v. (+100.1 to +200 mbar)
Temperature (instrument)-40 to +1,200°C±0.5°C (0.0 to +100.0°C)0.1°C (-40 to +999.9°C)
±0.5% of m.v. (remaining meas. range)1°C (remaining meas. range)
Ambient CO measurement (internal/flue gas probe)0 to 2,000 ppm±10 ppm (0 to 100 ppm)1 ppm
±10% of m.v. (101 to 2,000 ppm)
Ambient CO measurement (external with CO probe)0 to 500 ppm±3 ppm (0 to 29 ppm)1 ppm
±10% of m.v. (30 to 500 ppm)
General Technical Data
CertificationThe testo 300 is TÜV-tested according to 1st German Federal Immission Control Ordinance (BImSchV) EN 50379, Parts 1-3
Storage temperature-20 to +50°C
Operating temperature-5 to +45°C
Charging temperature0 to +45°C
Humidity application range15 to 90% RH, not condensing
Power supplyRechargeable battery, USB mains unit
Rechargeable battery life10 hrs
Protection classIP 40
Memory1 mio. measurement values
Display5.0″ touch display, HD 1280×720 pixels, IPS (160 k)
WeightApprox. 800 g
DimensionsL: 244 mm (including probe connection) H: 59 mm W: 98 mm
Testo 300 Longlife warrantyInstrument/probe/gas sensorsO₂, CO sensor48 months
NO sensor24 months
Thermocouple and rechargeable battery12 months
  • Testo 300 Flue Gas Analyser – Limited Black Edition
  • USB Main Unit with Cable
  • Compact Basic Flue Gas Probe (180mm, Ø6mm, Tmax. 500°C; 1.5m hose; including dirt filters and cone for fixing)
  • Carry Case

🚚 Testersmans Shipping Policy

Free Mainland GB Delivery Over £150

We offer free delivery on most mainland Great Britain orders over £150 (ex VAT).
This applies across England, Wales, and most of Scotland, excluding certain remote or offshore postcodes.

If your order total falls just short of £150, or you’re a returning customer, feel free to contact us — we may be able to offer a discount code or delivery workaround.
📞 01945 738112 | ✉️ [email protected]


📦 UK Delivery Options

We work with both Royal Mail and DHL to offer reliable and flexible delivery across the UK:

  • Royal Mail – Best suited for lighter parcels and for customers in remote regions, including the Highlands, Islands, and Northern Ireland.
  • DHL – Ideal for most mainland UK orders, providing fast, tracked delivery and excellent reliability for time-sensitive shipments.

Our checkout system automatically displays the available delivery services for your postcode and order weight, ensuring you always see the most suitable options.

Note: Heavy, bulky, or freight-only orders will be charged separately.
Our website is designed for quick, transactional purchases rather than bulk or palletised orders.
Please contact us in advance for a tailored freight quotation if your order falls into this category.


⏱ Dispatch & Delivery Timing

We aim to dispatch all in-stock orders promptly, but delivery depends on both when you order and which service you select.

  • UK orders: placed by 2:00 PM Monday–Friday are usually dispatched the same day.
  • International orders: placed by 2:00 PM Monday–Thursday are usually dispatched the same day.

Orders placed after these times are processed the next working day. This means delivery may occur the following day or later, depending on the courier and service selected.

Once dispatched, your chosen delivery service determines how quickly your parcel arrives:

  • Standard services We use Royal Mail Tracked 24 or DHL Parcel as our ‘Standard’ services. They are not guaranteed to arrive next working day.
  • Premium services (e.g. Royal Mail Special Delivery or DHL by Noon) offer guaranteed delivery windows.

If your order is time-sensitive, we strongly recommend choosing a guaranteed service or contacting us before ordering to confirm availability.

Please note: For logistical reasons, we may occasionally adjust the delivery method selected at checkout. For example, smaller items may be better suited to letterbox-friendly packaging or may be at greater risk of delay or loss via certain services. We actively monitor courier and postal service disruptions—including strikes and delays—and may modify shipping arrangements to help ensure timely and secure delivery.


📅 Busy Periods & Delays

We always aim to dispatch promptly, but delivery times may be affected by:

  • Seasonal demand (e.g. Christmas, bank holidays, or industry shutdowns)
  • Courier network delays outside our control
  • Supplier lead times or calibration requirements for certain equipment

If your delivery is time-critical, please contact us before ordering so we can confirm stock and courier availability.


🌍 International Shipping

We ship worldwide using UPS Express Saver® and other trusted global courier partners. All international shipments are tracked and generally dispatched Monday to Thursday to ensure smooth customs clearance and transit.

Estimated delivery times:

  • Europe: 1–2 working days
  • North America: 2–3 working days
  • Asia-Pacific & Rest of World: 3–5 working days

Delivery times vary depending on location, customs clearance, and local courier performance.


💰 Taxes, Customs & Import Duties

International customers are responsible for any applicable taxes, customs charges, or import duties.
These are not included in our product or shipping prices.

Your courier will typically provide a secure payment link for any import charges once your parcel reaches customs.
If import fees are refused and the parcel is returned, we will issue a refund minus all incurred shipping and return costs.


📍 Using Your Own Courier

If you would prefer to arrange collection via your own courier (UK or international), please contact us before placing your order to coordinate collection from our Wisbech warehouse.


📝 Important Notes

  • Please ensure your delivery address and contact number are correct at checkout.
  • Undelivered parcels may be returned to us after a short holding period.
  • Redelivery or return fees may apply, even if your order originally qualified for free delivery.
  • By placing an order, you confirm your understanding and acceptance of this policy.

Additional information

Weight800 g

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