• Intuitive measurement menus and fast-response Smart-Touch display
• Including O₂ and CO sensor up to 4,000 ppm
• In the kit: testo 300 flue gas analyzer, including O₂ and CO sensor up to 4,000 ppm, mains unit, basic flue gas probe, 1.5 m hose; including cone for fixing, EasyHeat software, soft-case style instrument bag
• 3rd sensor slot to allow optional Nitric Oxide (NO) sensor to be fitted to allow device to give calculated NOx measurement (sensor 0393 0151 required)
• Integrated micro-pressure measurement
• Documentation on site and reports sent by e-mail

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With this kit, you will be equipped for the most important measurements involving heating systems: the EN 50379, Parts 1-3 compliant testo 300 flue gas analyser is supplied with O2 and 4,000ppm CO sensor, basic flue gas probe, soft-case styleinstrument bag with carrying handle. If required a testo fast bluetooth printer 0554 0621 can be used to give local printout of measured values (printer NOT supplied in this kit)

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

Impressive measuring technology and quality
•    Fitted with O2 sensor, and 4,000ppm CO sensor
•    Longer sensor service life thanks to automatic sensor protection
•    TÜV-tested according to EN 50379, Parts 1-3
•    Supplied with compact flue gas probe with latching connector to ensure a reliable and robust connection
•    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 analyser: 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 WiFi hotspot
•    Large 5-inch HD display – enables you to see all the system’s parameters immediately
•    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 (optional) or transfer of pdf reports to PC or smartphone.

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Applications

Flue gas measurement on heating systems

Ideal for measurements involving heating systems:

• high-quality sensors, 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.

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Click below to Download Testo 300 Data Sheet

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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

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

Compact basic flue gas probe, 180 mm, Ø 6 mm, Tmax 500 °C
Diameter probe shaft	6 mm
Cable length	1.5 m
Length probe shaft	180 mm
Product colour	Black
Temperature maximum	500 °C
Diameter	6 mm
Weight	346 g

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

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)

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 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

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	±0.3 Pa (< 10 Pa) ±3 % of mv (Remaining Range)
Resolution	0.1 Pa