Testo 300+ Flue Gas Analyser smart kit – (O2, CO sensor up to 8,000 ppm)

Testo

£1,000.00 / £1,200.00 incl VAT

  • Fast and easy to operate: intuitive measurement menus and fast-response Smart-Touch display
  • Designed for domestic boiler service, 8,000ppm H2 compensated CO sensor and O2 sensor fitted with 5 year lifespan
  • Bluetooth clamp probes and manometer allow wireless measurement of flow/return temperature alongside gas pressure and differential temperature.
  • Efficient, wireless parallel measurement of up to four testo Smart Probes simultaneously

Available on back-order

SKU: 300564 3004 01 Category: Brand:

Description

Testo 300+ Flue Gas Analyser smart kit – (O2, CO sensor up to 8,000 ppm)

Product Details:

  • For more information on the ongoing costs of ownership and calibration, please reach out to our customer service team. We’re happy to assist you!

With this kit, you will be equipped to carry out smart measurements involving domestic heating systems, thanks to the bluetooth clamp probes and manometer included: the testo 300+ flue gas analyser is supplied with 5 year lifespan O2 and CO sensor (8,000 ppm H2 compensated), basic flue gas probe, testo Bluetooth® Connector,  1x testo 510i bluetooth differential manometer, 2 x testo 115i bluetooth pipe clamp thermometer, instrument carry case, AC USB power supply.

For testing domestic gas & oil boilers

•    Flue gas, tightness & let-by, differential temperature & pressure, ambient CO, & draught measurent menus
•    5 year sensors for reduced service costs
•    8,000 ppm CO sensor with H2 compensation and automatic pump shut off to prevent over-ranging
•    EN50379-1/3 and BS7967 compliant
•    20% H2 ready
•    Bluetooth USB dapter supplied for connectivity to testo Smart Probes
•    Kit includes 2 x testo 115i bluetooth pipe clamp probes for flow & return temperature measurement
•    Kit includes 1 x testo 510i bluetooth manometer for measurent of gas pressure and differential temperature

Delivery Scope

  • testo 300+ flue gas analyser with O2 and CO sensor up to 8,000 ppm (0633 3004 40)
  • USB mains unit, including cable (0554 1105)
  • Compact basic flue gas probe, 180 mm; Ø 6 mm; Tmax. 500°C; 1.5 m hose; including cone for fixing (0600 9740)
  • 1 x testo 510i Smart probe manometer (0560 1510)
  • 2 x testo 115i Smart probe pipe clamp thermometers (0560 2115 02)
  • testo Bluetooth connector (0554 3004)
  • soft-case style Instrument bag (0516 3001)

🚚 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.