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

Testo

£2,092.00 / £2,510.40 incl VAT

⚡ Measures NOx from 0 to 3000ppm, ideal for meeting ErP regulations
⚡ Sophisticated analyser capable of measuring a wide range of combustion parameters
⚡ Includes a flue probe, EasyHeat software, soft carry case and infrared printer
⚡ Same response time as a smartphone
⚡ 5-inch HD display

Available on back-order

SKU: 0564 3004 84 Category: Brand:

Description

Testo 300 NOx Flue Gas Analyser 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 NOx Flue Gas Analyser Kit is a sleek, modern instrument set that provides smartphone-style operation in combination with the powerful testing capabilities for which Testo are well known. It contains the advanced Testo 300, a printer, a flue probe and a software package. Notably, the Testo 300 NOx Kit comes with nitrogen oxide measurement.

Testo 300 Flue Gas Analyser

The Testo 300 NOx Flue Gas Analyser is capable of measuring oxygen (0 to 21%), efficiency (0 to 120%), carbon monoxide (0 to 4000ppm), carbon dioxide (calculated), draught (-9.99 to +40mbar), pressure (-100mbar to 200mbar), and temperature (-40˚C to 1200˚C).

The factory-fitted NO sensor on the Testo 300 works together with a preset level for NO2 to produce a value between 0 to 3000ppm with a resolution of 1ppm and accuracy of ±5ppm, ±5% or ±10% depending on the measurement range.

Nitrogen oxides are a major contributor to poor air quality and are dealt with by the ErP directive in force since September 2018. The analyser can even produce an mg/kWh value to see whether boilers comply with the statutory limits contained within the directive. The Testo 300 has a large onboard memory, an innovative touchscreen interface and sophisticated analytical functions.

Testo Flue Probe

The Testo 300 NOx Kit comes supplied with a standard flue gas probe which allows the user to take measurements directly from a combustion system’s flue. It has a ø6mm x 180mm shaft and includes 10 spare paper filters that prevent dust and water ingress into the analyser.

Testo IrDA Printer

The user can print hard copies of results and reports thanks to the Testo Wireless IrDA Printer. An IrDA connection can be used to transfer data wirelessly and the printer will then store measurements so that the user can carry on testing whilst printing is ongoing.

Testo EasyHeat PC Software

Testo EasyHeat PC Software can be used to manage data downloaded from the Testo 300 in a logical database with a customer and site tag. It also allows the user to configure flue gas analysers directly from a PC depending on the task at hand.

Testo part number: 0564 3002 74

Kit Contents

  • Testo 300 NOx Flue Gas Analyser
  • Testo flue probe
  • Testo IrDA Printer
  • Testo EasyHeat PC Software
  • AC charger unit
  • Soft carry case

What’s In The Box?

  • Testo 300 NOx Flue Gas Analyser
  • Testo flue probe
  • Testo IrDA Printer
  • Testo EasyHeat PC Software
  • USB bluetooth adapter for smart probe connection
  • AC charger unit
  • Soft carry case
O2 measurement

  • Range: 0 to 21%
  • Accuracy: ±0.2% vol
  • Resolution: 0.1% vol

CO measurement

  • Range: 0 to 4000ppm
  • Accuracy: ±20 ppm (0 to 400 ppm); ±5% of m.v. (401 to 2,000 ppm); ±10% of m.v. (2001 to 4,000 ppm)
  • Resolution: 1ppm

Combustion ratio (calculated)

  • Resolution: 0.0001

NO measurement

  • Range: 0 to 3000ppm
  • Accuracy: ±5 ppm (0 to 100 ppm); ±5% of m.v. (101 to 2,000 ppm); ±10% of m.v. (2,001 to 3,000 ppm)
  • Resolution: 1ppm

Efficiency testing

  • Range: 0 to 120%
  • Resolution: 0.1%

Flue gas loss

  • Range: 0 to 99.9%
  • Resolution: 0.1%

CO2 determination

  • Range: 0 to CO2 max.
  • Accuracy: ±0.2% vol
  • Resolution: 0.1% vol

Draught measurement

  • Range: -9.99 to +40mbar
  • Accuracy: ±0.005 mbar (0 to 0.1 mbar); ±0.02 mbar (0.1 to +3.00 mbar); ±1.5% of m.v. (+3.01 to +40 mbar)
  • Resolution: 0.001mbar (0 to 0.1mbar); 0.01mbar (rest of range)

Pressure measurement

  • Range: -100mbar to +200mbar
  • Accuracy: ±0.5 mbar (0 to +50.0 mbar); ±1% of m.v. (+50.1 to +100.0 mbar); ±1.5% of m.v. (+100.1 to +200 mbar)
  • Resolution: 0.01mbar

Temperature

  • Range: -40˚C to 1200˚C
  • Accuracy: ±0.5°C (0.0 to +100.0°C); ±0.5% of m.v. (remaining meas. range)
  • Resolution: 0.1°C (-40 to +999.9°C); 1°C (remaining meas. range)

Ambient CO measurement (internal/flue gas probe)

  • Range: 0 to 2000ppm
  • Accuracy: ±10 ppm (0 to 100 ppm); ±10% of m.v. (101 to 2,000 ppm)
  • Resolution: 1ppm

Ambient CO measurement (external CO probe)

  • Range: 0 to 500ppm
  • Accuracy: ±3 ppm (0 to 29 ppm); ±10% of m.v. (30 to 500 ppm)
  • Resolution: 1ppm
  • Certification: The testo 300 is TÜV-tested according to 1st German Federal Immission Control Ordinance (BImSchV) EN 50379, Parts 1-3 
  • Storage temperature: -20˚C to 50˚C
  • Operating temperature: -5˚C to 45˚C
  • Charging temperature: 0 to 45˚C
  • Humidity application range: 15% to 90% RH
  • Power supply: Rechargeable battery, USB mains unit
  • Rechargeable battery life: 10 hours
  • Protection class: IP40
  • Memory: 1 million measurement values
  • Display: 5” touch display HD 1280 x 720 pixels, IPS (160k)
  • Weight: Approx. 800g
  • Dimensions: 244mm x 59mm x 98mm
  • Warranty: Two years
  • Testo 300 NOx Flue Gas Analyser
  • Testo flue probe
  • Testo IrDA Printer
  • Testo EasyHeat PC Software
  • USB bluetooth adapter for smart probe connection
  • AC charger unit
  • Soft 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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