testo 300 Longlife – testo 300 Longlife flue gas analyzer (O₂, CO H₂-compensated up to 30,000 ppm, NO upgradeable) incl. BT® Connector


  • Intuitive measuring menus with responsive smart-touch display
  • Incl. O2 and H2-compensated CO sensor up to 30,000 ppm (NO sensor can be retrofitted); integrated fine draft pressure measurement
  • Integrated fine draft pressure measurement
  • On-site documentation and sending reports by e-mail
  • Versatile probes and fast probe changes by the user
  • Magnetic mount for fixing the device in place
  • Efficient, wireless parallel measurement with up to four testo Smart Probes at the same time
  • Practical second-screen function and easy data integration into user-specific software
Datasheet
User Manual
Add to your Quote List
Videos

Das flue gas analyzer testo 300 with Longlife sensors is ideal for heating technicians who carry out installation and maintenance work on heating systems several times a day. It combines decades of measurement technology experience with modern smart-touch operation, robust workmanship, and report sending by email. With the testo 300 you can easily measure flue gas, draft, pressure, ambient CO and differential temperature – you can also retrofit an NO sensor.

Consistently smart flue gas measurement on heating systems with the testo 300 flue gas analyzer. High-quality sensors, intuitive operation with smart-touch technology, and clever features such as efficient documentation and sending reports by email make your day-to-day work easier.

testo 300 Longlife flue gas analyzer with smart-touch operation – equipment

Impressive measurement technology and quality

  • O2 sensor and H2-compensated CO sensor up to 30,000 ppm thanks to the integrated fresh-air dilution
  • NO sensor can be retrofitted
  • Longer sensor service life thanks to automatic sensor protection
  • Integrated draft and gas zeroing without removing the probe – the flue gas probe can remain in the chimney during zeroing
  • For intensive daily use: high-quality Longlife sensors for O2 and CO with a service life of up to 6 years. This eliminates at least one sensor replacement during the typical service life
  • TÜV-tested in accordance with 1st BImSchV and EN 50379, Parts 1–3
  • Integrated fine draft pressure and 4 Pa measurement for legally required measurements
  • Up to 5 years manufacturer warranty on the O2 and CO sensor with product registration – without a maintenance contract
  • Versatile probes and fast probe changes: benefit from quickly interchangeable probes and the multifunction handle for attaching various probe shafts (each available separately). Use e.g. longer probe shafts for larger-diameter flue gas ducts or flexible probes for hard-to-reach measuring points
  • Optional probes and accessories for additional measuring tasks such as gas flow pressure measurement, gas line testing, differential temperature measurement, ambient CO measurement

Smart, intuitive, efficient: easy operation in everyday work

  • Smart-touch display for intuitive operation of the flue gas analyzer: the display responds without delay – just as easy as on your smartphone
  • Faster to the measurement result: clearly structured measurement menus for all relevant measurements
  • Create documentation (incl. measured values, measuring location, customer data) easily on site
  • Save PDF measurement reports directly on the device and always have them available
  • Signature function: your customer can sign measurement reports directly on the device
  • Send measurement reports by email via Wi-Fi (hotspot) directly to the office or to customers
  • Large 5-inch HD display – so you can see all system parameters at a glance
  • Testo Interface function for direct transfer of measured values into an industry-/customer-specific software*
  • Ready for immediate use: in standby mode, the testo 300 is ready to measure at the press of a button. Use it right away at the next customer – no waiting for the zeroing phase
  • Integrated Bluetooth® interface: print measured values on site with a compatible printer

*Note: To use this function, an interface must be integrated into the industry software by the manufacturer

Additional benefits

  • 10-hour battery life: with an average measuring time of 2 hours, the flue gas analyzer can be used for a week
  • Integrated extra-strong magnets for easy attachment during the measurement process

Scope of delivery

  • testo 300 Longlife flue gas analyzer with O2 and CO H2-compensated sensor up to 30,000 ppm, NO sensor can be retrofitted
  • testo Bluetooth® Connector
  • USB power supply
  • EasyHeat PC software available as a free download

 

Technical data

Temperature – Type K TE (NiCr-Ni)

Measuring range
-40 to +1200 °C
Accuracy
±0.5 % of mv (remaining measuring range)
±0.5 °C (0.0 to +100.0 °C)
Resolution
0.1 °C (-40 to +999.9 °C)
1 °C (remaining measuring range)

Differential pressure – piezoresistive

Measuring range
-100 to +200 hPa
Accuracy
±1 % of mv (+50.1 to +100.0 hPa)
±1.5 % of mv (+100.1 to +200 hPa)
±0.5 hPa (0 to +50.0 hPa)
Resolution
0.01 hPa

O₂ in flue gas

Measuring range
0 to 21 vol. %
Accuracy
±0.2 vol. %
Resolution
0.1 vol. %

COlow in flue gas (with H₂ compensation)

Measuring range
0 to 500 ppm
Accuracy
±2 ppm (40 to +500 ppm)
±5 % of mv remaining measuring range
Resolution
0.1 ppm

CO measurement (with H₂ compensation), automatic dilution

Measuring range
0 to 30000 ppm
Accuracy
±100 ppm or ±10 % of mv
Resolution
1 ppm

NO in flue gas

Measuring range
0 to 3000 ppm
Accuracy
±5 % of mv (101 to 2000 ppm)
±10 % of mv (2001 to 3000 ppm)
±5 ppm (0 to 100 ppm)
Resolution
1 ppm

NOlow in flue gas

Measuring range
0 to 300 ppm
Accuracy
±5 % of mv (40 to 300 ppm)
±2 ppm (0 to +39.9 ppm)
Resolution
0.1 ppm

Differential pressure draft measurement in flue gas – piezoresistive

Measuring range
-9.99 to +40 hPa
Accuracy
±0.02 hPa (0.1 to +3.00 hPa)
±1.5 % of mv (+3.01 to +40 hPa)
±0.005 hPa (0 to 0.1 hPa)
Resolution
0.01 hPa (remaining measuring range)
0.001 hPa (0 to 0.1 hPa)

Efficiency determination, eta (calculated)

Measuring range
0 to 120 %
Resolution
0.1 %

Flue gas loss (calculated)

Measuring range
0 to 99.9 %
Resolution
0.1 %

CO₂ determination (calculated from O2)

Display range
Display range 0 to CO₂ max
Accuracy
±0.2 vol. %
Resolution
0.1 vol. %

CO in ambient air

Measuring range
0 to 2000 ppm
Accuracy
±10 ppm (0 to 100 ppm)
±10 % of mv (101 to 2000 ppm)
Resolution
1 ppm

Differential pressure 4 Pa measurement – piezoresistive

Measuring range
-50 to +50 Pa
Accuracy
±3 % of mv (remaining measuring range)
±0.3 Pa (< 10 Pa)
Resolution
0.1 Pa

General technical data

Operating humidity
15 to 90 %RH, non-condensing
Weight
approx. 800 g
Dimensions
244 (incl. probe connection) x 98 x 59 mm (LxWxH)
Operating temperature
-5 to +45 °C
Protection class
IP40
Product color
black/orange
Display type
5.0″ touch display, HD 1280*720 pixels, IPS (160k)
Power supply
Rechargeable battery, USB power supply
Warranty terms
https://www.testo.com/guarantee
Approvals
TÜV-tested according to 1st BImSchV EN 50379, Parts 1–3
Warranty
Gas sensors (O₂, CO) 48 months; NO, NOlow, COlow sensor 24 months; thermocouple 12 months; rechargeable battery: 12 months
Memory
1,000,000 readings
Battery life
10 h
Battery type
Lithium-ion rechargeable battery
Storage temperature
-20 to +50 °C
Charging temperature
0 to +45 °C

 

Applications

Flue gas measurement on heating systems

Ideal for measurements around the heating system:

  • High-quality Longlife sensors with a service life of up to 6 years, smart-touch operation, clearly structured measurement menus, on-site documentation creation, sending reports by email, large HD display, robust housing

Other areas of application:

  • Gas flow pressure measurement*, gas line testing*, differential temperature measurement (flow and return temperature on heating systems)*, ambient CO measurement*, chimney draft measurement on the heating system*, integrated 4 Pa measurement for fireplaces/stoves

*Please note: Additional probes or accessory items are required for these measurements and must be ordered separately.


Datasheets






testo 300 Longlife – testo 300 Longlife flue gas analyzer (O₂, CO H₂-compensated up to 30,000 ppm, NO upgradeable) incl. BT® Connector
testo 300 Longlife – testo 300 Longlife flue gas analyzer (O₂, CO H₂-compensated up to 30,000 ppm, NO upgradeable) incl. BT® Connector - Image 2
testo 300 Longlife – testo 300 Longlife flue gas analyzer (O₂, CO H₂-compensated up to 30,000 ppm, NO upgradeable) incl. BT® Connector - Image 3
testo 300 Longlife – testo 300 Longlife flue gas analyzer (O₂, CO H₂-compensated up to 30,000 ppm, NO upgradeable) incl. BT® Connector - Image 4
testo 300 Longlife – testo 300 Longlife flue gas analyzer (O₂, CO H₂-compensated up to 30,000 ppm, NO upgradeable) incl. BT® Connector - Image 5
Technical advice: 03303 / 50 40 66

Technical advice for this product


    In accordance with the General Data Protection Regulation (GDPR), we are obliged to inform you about the collection of data. We meet this obligation by referring to our privacy notice.



    testo 300 Longlife – testo 300 Longlife flue gas analyzer (O₂, CO H₂-compensated up to 30,000 ppm, NO upgradeable) incl. BT® Connector

    testo 300 Longlife – testo 300 Longlife flue gas analyzer (O₂, CO H₂-compensated up to 30,000 ppm, NO upgradeable) incl. BT® Connector
    testo 300 Longlife – testo 300 Longlife flue gas analyzer (O₂, CO H₂-compensated up to 30,000 ppm, NO upgradeable) incl. BT® Connector - Image 2
    testo 300 Longlife – testo 300 Longlife flue gas analyzer (O₂, CO H₂-compensated up to 30,000 ppm, NO upgradeable) incl. BT® Connector - Image 3
    testo 300 Longlife – testo 300 Longlife flue gas analyzer (O₂, CO H₂-compensated up to 30,000 ppm, NO upgradeable) incl. BT® Connector - Image 4
    testo 300 Longlife – testo 300 Longlife flue gas analyzer (O₂, CO H₂-compensated up to 30,000 ppm, NO upgradeable) incl. BT® Connector - Image 5
    • Intuitive measuring menus with responsive smart-touch display
    • Incl. O2 and H2-compensated CO sensor up to 30,000 ppm (NO sensor can be retrofitted); integrated fine draft pressure measurement
    • Integrated fine draft pressure measurement
    • On-site documentation and sending reports by e-mail
    • Versatile probes and fast probe changes by the user
    • Magnetic mount for fixing the device in place
    • Efficient, wireless parallel measurement with up to four testo Smart Probes at the same time
    • Practical second-screen function and easy data integration into user-specific software
    Datasheet
    User Manual
    Add to your Quote List
    Videos

    Das flue gas analyzer testo 300 with Longlife sensors is ideal for heating technicians who carry out installation and maintenance work on heating systems several times a day. It combines decades of measurement technology experience with modern smart-touch operation, robust workmanship, and report sending by email. With the testo 300 you can easily measure flue gas, draft, pressure, ambient CO and differential temperature – you can also retrofit an NO sensor.

    Consistently smart flue gas measurement on heating systems with the testo 300 flue gas analyzer. High-quality sensors, intuitive operation with smart-touch technology, and clever features such as efficient documentation and sending reports by email make your day-to-day work easier.

    testo 300 Longlife flue gas analyzer with smart-touch operation – equipment

    Impressive measurement technology and quality

    • O2 sensor and H2-compensated CO sensor up to 30,000 ppm thanks to the integrated fresh-air dilution
    • NO sensor can be retrofitted
    • Longer sensor service life thanks to automatic sensor protection
    • Integrated draft and gas zeroing without removing the probe – the flue gas probe can remain in the chimney during zeroing
    • For intensive daily use: high-quality Longlife sensors for O2 and CO with a service life of up to 6 years. This eliminates at least one sensor replacement during the typical service life
    • TÜV-tested in accordance with 1st BImSchV and EN 50379, Parts 1–3
    • Integrated fine draft pressure and 4 Pa measurement for legally required measurements
    • Up to 5 years manufacturer warranty on the O2 and CO sensor with product registration – without a maintenance contract
    • Versatile probes and fast probe changes: benefit from quickly interchangeable probes and the multifunction handle for attaching various probe shafts (each available separately). Use e.g. longer probe shafts for larger-diameter flue gas ducts or flexible probes for hard-to-reach measuring points
    • Optional probes and accessories for additional measuring tasks such as gas flow pressure measurement, gas line testing, differential temperature measurement, ambient CO measurement

    Smart, intuitive, efficient: easy operation in everyday work

    • Smart-touch display for intuitive operation of the flue gas analyzer: the display responds without delay – just as easy as on your smartphone
    • Faster to the measurement result: clearly structured measurement menus for all relevant measurements
    • Create documentation (incl. measured values, measuring location, customer data) easily on site
    • Save PDF measurement reports directly on the device and always have them available
    • Signature function: your customer can sign measurement reports directly on the device
    • Send measurement reports by email via Wi-Fi (hotspot) directly to the office or to customers
    • Large 5-inch HD display – so you can see all system parameters at a glance
    • Testo Interface function for direct transfer of measured values into an industry-/customer-specific software*
    • Ready for immediate use: in standby mode, the testo 300 is ready to measure at the press of a button. Use it right away at the next customer – no waiting for the zeroing phase
    • Integrated Bluetooth® interface: print measured values on site with a compatible printer

    *Note: To use this function, an interface must be integrated into the industry software by the manufacturer

    Additional benefits

    • 10-hour battery life: with an average measuring time of 2 hours, the flue gas analyzer can be used for a week
    • Integrated extra-strong magnets for easy attachment during the measurement process

    Scope of delivery

    • testo 300 Longlife flue gas analyzer with O2 and CO H2-compensated sensor up to 30,000 ppm, NO sensor can be retrofitted
    • testo Bluetooth® Connector
    • USB power supply
    • EasyHeat PC software available as a free download

     

    Technical data

    Temperature – Type K TE (NiCr-Ni)

    Measuring range
    -40 to +1200 °C
    Accuracy
    ±0.5 % of mv (remaining measuring range)
    ±0.5 °C (0.0 to +100.0 °C)
    Resolution
    0.1 °C (-40 to +999.9 °C)
    1 °C (remaining measuring range)

    Differential pressure – piezoresistive

    Measuring range
    -100 to +200 hPa
    Accuracy
    ±1 % of mv (+50.1 to +100.0 hPa)
    ±1.5 % of mv (+100.1 to +200 hPa)
    ±0.5 hPa (0 to +50.0 hPa)
    Resolution
    0.01 hPa

    O₂ in flue gas

    Measuring range
    0 to 21 vol. %
    Accuracy
    ±0.2 vol. %
    Resolution
    0.1 vol. %

    COlow in flue gas (with H₂ compensation)

    Measuring range
    0 to 500 ppm
    Accuracy
    ±2 ppm (40 to +500 ppm)
    ±5 % of mv remaining measuring range
    Resolution
    0.1 ppm

    CO measurement (with H₂ compensation), automatic dilution

    Measuring range
    0 to 30000 ppm
    Accuracy
    ±100 ppm or ±10 % of mv
    Resolution
    1 ppm

    NO in flue gas

    Measuring range
    0 to 3000 ppm
    Accuracy
    ±5 % of mv (101 to 2000 ppm)
    ±10 % of mv (2001 to 3000 ppm)
    ±5 ppm (0 to 100 ppm)
    Resolution
    1 ppm

    NOlow in flue gas

    Measuring range
    0 to 300 ppm
    Accuracy
    ±5 % of mv (40 to 300 ppm)
    ±2 ppm (0 to +39.9 ppm)
    Resolution
    0.1 ppm

    Differential pressure draft measurement in flue gas – piezoresistive

    Measuring range
    -9.99 to +40 hPa
    Accuracy
    ±0.02 hPa (0.1 to +3.00 hPa)
    ±1.5 % of mv (+3.01 to +40 hPa)
    ±0.005 hPa (0 to 0.1 hPa)
    Resolution
    0.01 hPa (remaining measuring range)
    0.001 hPa (0 to 0.1 hPa)

    Efficiency determination, eta (calculated)

    Measuring range
    0 to 120 %
    Resolution
    0.1 %

    Flue gas loss (calculated)

    Measuring range
    0 to 99.9 %
    Resolution
    0.1 %

    CO₂ determination (calculated from O2)

    Display range
    Display range 0 to CO₂ max
    Accuracy
    ±0.2 vol. %
    Resolution
    0.1 vol. %

    CO in ambient air

    Measuring range
    0 to 2000 ppm
    Accuracy
    ±10 ppm (0 to 100 ppm)
    ±10 % of mv (101 to 2000 ppm)
    Resolution
    1 ppm

    Differential pressure 4 Pa measurement – piezoresistive

    Measuring range
    -50 to +50 Pa
    Accuracy
    ±3 % of mv (remaining measuring range)
    ±0.3 Pa (< 10 Pa)
    Resolution
    0.1 Pa

    General technical data

    Operating humidity
    15 to 90 %RH, non-condensing
    Weight
    approx. 800 g
    Dimensions
    244 (incl. probe connection) x 98 x 59 mm (LxWxH)
    Operating temperature
    -5 to +45 °C
    Protection class
    IP40
    Product color
    black/orange
    Display type
    5.0″ touch display, HD 1280*720 pixels, IPS (160k)
    Power supply
    Rechargeable battery, USB power supply
    Warranty terms
    https://www.testo.com/guarantee
    Approvals
    TÜV-tested according to 1st BImSchV EN 50379, Parts 1–3
    Warranty
    Gas sensors (O₂, CO) 48 months; NO, NOlow, COlow sensor 24 months; thermocouple 12 months; rechargeable battery: 12 months
    Memory
    1,000,000 readings
    Battery life
    10 h
    Battery type
    Lithium-ion rechargeable battery
    Storage temperature
    -20 to +50 °C
    Charging temperature
    0 to +45 °C

     

    Applications

    Flue gas measurement on heating systems

    Ideal for measurements around the heating system:

    • High-quality Longlife sensors with a service life of up to 6 years, smart-touch operation, clearly structured measurement menus, on-site documentation creation, sending reports by email, large HD display, robust housing

    Other areas of application:

    • Gas flow pressure measurement*, gas line testing*, differential temperature measurement (flow and return temperature on heating systems)*, ambient CO measurement*, chimney draft measurement on the heating system*, integrated 4 Pa measurement for fireplaces/stoves

    *Please note: Additional probes or accessory items are required for these measurements and must be ordered separately.


    Datasheets






    Technical advice: 03303 / 50 40 66

    Technical advice for this product


      In accordance with the General Data Protection Regulation (GDPR), we are obliged to inform you about the collection of data. We meet this obligation by referring to our privacy notice.



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