testo 300 Longlife - Flue gas analyzer (O2, CO H2-compensated up to 8,000 ppm, NO - can be retrofitted)

제품 번호  0633 3004 73

  • Intuitive measurement menus and the fast-response Smart-Touch display ensure easy operation – as on your smartphone

  • Including O2-, CO H2-compensated sensor up to 8,000 ppm (NO sensor - can be retrofitted)

  • High-quality sensor technology with up to 6 years' service life

  • Create documentation directly on site and e-mailing of reports

The testo 300 flue gas analyzer with Longlife sensors is ideal for heating engineers who carry out installation and maintenance work on heating systems several times a day. It combines decades of experience in measuring technology with contemporary smart-touch operation, robust construction and e-mailing of reports. The testo 300 enables easy measurement of flue gas, draught, pressure, ambient CO and differential temperature – you can also retrofit an NO sensor.

제품 설명

Truly smart flue gas measurement on heating systems with the testo 300 flue gas analyzer. High-quality sensors, intuitive operation with smart-touch technology and smart features, such as efficient documentation and e-mailing of reports, will make your day-to-day work easier.

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

Impressive measuring technology and quality

  • O2 and H2-compensated CO sensor up to 8,000 ppm
  • NO sensor - can be retrofitted
  • Longer sensor service life thanks to automatic sensor protection
  • For intensive daily use: high-quality Longlife sensors for O2 and CO with a service life of up to 6 years. That means at least one sensor replacement is saved in the course of a normal working life
  • TÜV-tested according to first German Federal Immission Control Ordinance (BImSchV) and EN 50379, Parts 1-3
  • Integrated fine pressure
  • Manufacturer's warranty of up to 5 years on O2 and CO sensor with product registration – without a maintenance contract
  • Versatile probes and fast probe changes: take advantage of quick-change probes and the multi-functional handle for attaching a variety of probe shafts (each available to order separately). You can for instance use longer probe shafts for flue gas pipes with larger diameters or flexible probes for difficult-to-access measuring points
  • Optionally available probes and accessories for further measuring tasks, such as gas flow pressure measurement, gas pipe testing, differential temperature measurement and ambient CO measurement

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

  • Smart-touch display for intuitive operation of the flue gas analyzer: 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 the appropriate printer

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


Other advantages

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


상품 제공 시 포함

testo 300 Longlife flue gas analyzer with O2 and CO H2-compensated sensor up to 8,000 ppm, NO sensor - can be retrofitted, USB mains unit.
열전대 K타입(NiCr-Ni)

열전대 K타입 측정 범위

-40 ~ +1200 °C

열전대 K타입 정확도

±0.5 °C (0.0 ~ +100.0 °C)

±0.5 측정값의 % (나머지 범위)

열전대 K타입 분해능

0.1 °C (-40 ~ +999.9 °C)

1 °C (나머지 범위)


차압 측정 범위

-100 ~ +200 hPa

차압 정확도

±0.5 hPa (0 ~ +50.0 hPa)

±1 측정값의 % (+50.1 ~ +100.0 hPa)

±1.5 측정값의 % (+100.1 ~ +200 hPa)

차압 분해능

0.01 hPa

O₂ 측정값

O₂ 측정

0 ~ 21 Vol.%

O₂ 정확도

±0.2 Vol.%

O₂ 분해능

0.1 Vol.%

CO 측정값 (H2 보상)

CO(H2보상) 측정범위

0 ~ 8000 ppm

CO(H2보상) 정확도

±10 ppm 또는 ±10 측정값의 % (0 ~ 200 ppm)

±20 ppm 또는 ±5 측정값의 % (201 ~ 2000 ppm)

±10 측정값의 % (2001 ~ 8000 ppm)

CO(H2보상) 분해능

1 ppm

NO 측정값

NO 측정범위

0 ~ 3000 ppm

NO 정확도

±5 ppm (0 ~ 100 ppm)

±5 측정값의 % (101 ~ 2000 ppm)

±10 측정값의 % (2001 ~ 3000 ppm)

NO 분해능

1 ppm

통풍 측정값

통풍 측정 범위

-9.99 ~ +40 hPa

통풍 정확도

±0.005 hPa (+0 ~ +0.1 hPa)

±0.02 hPa (+0.1 ~ +3.00 hPa)

±1.5 측정값의 % (3.01 ~ +40 hPa)

통풍 분해능

0.001 hPa (0 ~ 0.1 hPa)

0.01 hPa (나머지 범위)


효율 측정 범위

0 ~ 120 %

효율 분해능

0.1 %

연소가스 손실

연소가스 손실 측정 범위

0 ~ 99.9 %

연소가스 손실 분해능

0.1 %

CO₂ 측정값(O₂ 계산)

CO₂(O₂ 계산) 측정 범위

표시범위 0 ~ CO2 max

CO₂ (O₂ 계산) 정확도

±0.2 Vol.%

CO₂ (O₂ 계산) 분해능

0.1 Vol.%

대기 중 CO 측정값

대기 CO 측정 범위

0 ~ 2000 ppm

대기 CO 측정 정확도

±10 ppm (0 ~ 100 ppm)

±10 측정값의 % (101 ~ 2000 ppm)

대기 CO 분해능

1 ppm

기술 데이터

Operating humidity

15 ~ 90 %RH non-condensing


244 (including probe connection) x 98 x 59 LxWxH

작동 온도

-5 ~ +45 °C



Product colour


디스플레이 종류

5.0" touch display, HD 1280*720 pixels, IPS (160 k)

전력 공급

Rechargeable battery, USB mains unit

Warranty conditions



가스 센서(O2, CO) - 48개월; NO 센서 - 24개월; 열전대 센서 - 12개월; 충전가능한 배터리 - 12개월


TÜV-tested according to 1st German Federal Immission Control Ordinance (BImSchV) EN 50379, Parts 1-3


1,000,000 측정값

보관 기기

Lithium ion battery

보관 배터리 수명

10 h

보관 온도

-20 ~ +50 °C


approximately 800 g

Charging temperature

0 ~ +45 °C

Differential Pressure 4 Pa measurement - Piezoresistive

Measuring Range

-50 ~ +50 pa


±0.3 pa (< 10 pa)

±3 측정값의 % (나머지 범위)


0.1 pa

Flue gas measurement on heating systems

Ideal for measurements involving heating systems:
  • high-quality Longlife sensors with a service life of up to 6 years, smart-touch operation, clearly structured measurement menus, creation of documentation on site, e-mailing of reports, large HD display, robust housing
Further areas of application:
  • gas flow pressure measurement*, gas pipe test*, differential temperature measurement (flow and return temperature on heating systems)*, ambient CO measurement*, flue draught measurement on heating systems*
* Please note: additional probes or accessories are required for these measurements and have to be ordered separately.

제품 브로슈어

사용 설명서