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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 flue gas analyzer with smart-touch operation – Features

Impressive measuring technology and quality

O₂ sensor and CO sensor up to 4,000 ppm
Longer sensor service life thanks to automatic sensor protection
TÜV-tested according to first German Federal Immission Control Ordinance (BImSchV) and EN 50379, Parts 1-3
Integrated fine pressure
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

testo 300 flue gas analyzer with O₂ and CO sensor up to 4,000 ppm, USB mains unit

Temperature - TC Type K (NiCr-Ni)
Measuring range	-40 to +1200 °C
Accuracy	±0.5 °C (0.0 to +100.0 °C) ±0.5 % of mv (Remaining Range)
Resolution	0.1 °C (-40 to +999.9 °C) 1 °C (Remaining Range)

Temperature - TC Type K (NiCr-Ni)

Measuring range

-40 to +1200 °C

Accuracy

±0.5 °C (0.0 to +100.0 °C)

±0.5 % of mv (Remaining Range)

Resolution

0.1 °C (-40 to +999.9 °C)

1 °C (Remaining Range)

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

Differential Pressure - Piezoresistive

Measuring range

-100 to +200 hPa

Accuracy

±0.5 hPa (0 to +50.0 hPa)

±1 % of mv (+50.1 to +100.0 hPa)

±1.5 % of mv (+100.1 to +200 hPa)

Resolution

0.01 hPa

Flue gas O₂
Measuring range	0 to 21 Vol.%
Accuracy	±0.2 Vol.%
Resolution	0.1 Vol.%

Flue gas O₂

Measuring range

0 to 21 Vol.%

Accuracy

±0.2 Vol.%

Resolution

0.1 Vol.%

Differential Pressure flue gas Draught - Piezoresistive
Measuring range	-9.99 to +40 hPa
Accuracy	±0.005 hPa (+0 to +0.1 hPa) ±0.02 hPa (+0.1 to +3.00 hPa) ±1.5 % of mv (3.01 to +40 hPa)
Resolution	0.001 hPa (0 to 0.1 hPa) 0.01 hPa (Remaining Range)

Differential Pressure flue gas Draught - Piezoresistive

Measuring range

-9.99 to +40 hPa

Accuracy

±0.005 hPa (+0 to +0.1 hPa)

±0.02 hPa (+0.1 to +3.00 hPa)

±1.5 % of mv (3.01 to +40 hPa)

Resolution

0.001 hPa (0 to 0.1 hPa)

0.01 hPa (Remaining Range)

Flue gas degree of effectivity, Eta (calculated)
Measuring range	0 to 120 %
Resolution	0.1 %

Flue gas degree of effectivity, Eta (calculated)

Measuring range

0 to 120 %

Resolution

0.1 %

Flue gas loss (calculated)
Measuring range	0 to 99.9 %
Resolution	0.1 %

Flue gas loss (calculated)

Measuring range

0 to 99.9 %

Resolution

0.1 %

Flue gas CO₂ calculation (calculated from O₂)
Measuring range	Display range 0 to CO₂ max
Accuracy	±0.2 Vol.%
Resolution	0.1 Vol.%

Flue gas CO₂ calculation (calculated from O₂)

Measuring range

Display range 0 to CO₂ max

Accuracy

±0.2 Vol.%

Resolution

0.1 Vol.%

Flue gas CO (without H₂-compensation)
Measuring range	0 to 4000 ppm
Accuracy	±20 ppm (0 to 400 ppm) ±5 % of mv (401 to 2000 ppm) ±10 % of mv (2001 to 4000 ppm)
Resolution	1 ppm

Flue gas CO (without H₂-compensation)

Measuring range

0 to 4000 ppm

Accuracy

±20 ppm (0 to 400 ppm)

±5 % of mv (401 to 2000 ppm)

±10 % of mv (2001 to 4000 ppm)

Resolution

1 ppm

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

Ambient CO

Measuring range

0 to 2000 ppm

Accuracy

±10 ppm (0 to 100 ppm)

±10 % of mv (101 to 2000 ppm)

Resolution

1 ppm

General technical data
Operating humidity	15 to 90 %RH non-condensing
Weight	approximately 800 g
Dimensions	244 (including probe connection) x 98 x 59 mm (LxWxH)
Operating temperature	-5 to +45 °C
Protection class	IP40
Product colour	black/orange
Display type	5.0" touch display, HD 1280*720 pixels, IPS (160 k)
Power supply	Rechargeable battery, USB mains unit
Authorizations	TÜV-tested according to 1st German Federal Immission Control Ordinance (BImSchV) EN 50379, Parts 1-3
Guarantee	Gas sensors (O₂, CO) 24 months; rechargeable battery: 12 months; Thermocouple 12 months
Warranty conditions	https://www.testo.com/guarantee
Memory	1,000,000 measuring values
Storage battery type	Lithium ion battery
Battery life	10 h
Storage temperature	-20 to +50 °C
Charging temperature	0 to +45 °C

General technical data

Operating humidity

15 to 90 %RH non-condensing

Weight

approximately 800 g

Dimensions

244 (including probe connection) x 98 x 59 mm (LxWxH)

Operating temperature

-5 to +45 °C

Protection class

IP40

Product colour

black/orange

Display type

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

Power supply

Rechargeable battery, USB mains unit

Authorizations

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

Guarantee

Gas sensors (O₂, CO) 24 months; rechargeable battery: 12 months; Thermocouple 12 months

Warranty conditions

https://www.testo.com/guarantee

Memory

1,000,000 measuring values

Storage battery type

Lithium ion battery

Battery life

10 h

Storage temperature

-20 to +50 °C

Charging temperature

0 to +45 °C

Differential Pressure 4 Pa measurement - Piezoresistive
Measuring Range	-50 to +50 Pa
Accuracy	±0.3 Pa (< 10 Pa) ±3 % of mv (Remaining Range)
Resolution	0.1 Pa

Differential Pressure 4 Pa measurement - Piezoresistive

Measuring Range

-50 to +50 Pa

Accuracy

±0.3 Pa (< 10 Pa)

±3 % of mv (Remaining Range)

Resolution

0.1 Pa

Datasheet testo 300 (application/pdf,451 KB)	Download
Instruction manual testo 300 (PDF, 324 KB)	Download

Flue Gas Analyser

Flue Gas Analyser

Testo 300

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

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Technical Data

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