testo 315-3 – Ambient CO & CO2 Detector

Carbon monoxide (CO) is a colourless, odourless and taste-free gas, but also poisonous. Its sources include the incomplete combustion of substances containing carbon

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testo 315-3 Ambient CO & CO2 Detector

Ambient CO Measuring Instrument as carbon monoxide (CO) is a colourless, odourless and taste-free gas, but also poisonous. Its sources include the incomplete combustion of substances containing carbon (oil, gas and solid fuels, etc.).

This is why it is necessary to regularly check CO emissions at the combustion points of heating systems and surroundings.

  • Measures CO & CO2
  • Temperature & Humidity Measurements
  • Optional Bluetooth Interface
  • Optical & Audible Alarms

The high-quality testo 315-3 is an easy-to-use, ruggedly designed CO and CO2 meter that enables you to carry out quick and reliable ambient measurements according to DIN EN 50543 standard.

Cutting-edge technology, easy-to-use, rugged design. These are just a few of the features which make the testo 315-3 stand out head and shoulders above the rest. The CO andCO2 meter is designed to measure carbon monoxide and carbon dioxide parallel in heating systems and ventilation ducts. The readings are presented on an easy-to-read display. A visual and audible alarm are activated when CO/CO2 thresholds are breached. The thresholds can be adjusted to suit your range of applications.The intelligently designed meter has an energy-saving lithium polymer rechargeable battery and powers off automatically when not in use.And here’s yet another practical feature: the CO and CO2 meter for ambient measurements can also be used in combination with the testo 330-2 flue gas analyzer. The CO/CO2 reading scan be transferred directly to the analyzer via Bluetooth (Not compatible with this model – Please contact testo If you require the Bluetooth enabled model)

Tune up your CO and CO2 meter with a range of accessories for even more possibilities
The testo 315-3 is already well equipped to meet all the demands you would put on a CO and CO2 meter. The following accessories are designed to allow you to customize your meter to suit your own individual requirements:
  • TopSafe protective casing: water and dirt repellent; provides your testo 315-3 CO and CO2 meter with protection in wet and dirty conditions
  • Testo fast printer: The testo turbo printer enables you to print out on site and provide your customers with the necessary documentation. The results are transferred to the printer via Bluetooth
  • Temperature/humidity module: allows you to carry out quick and reliable temperature and humidity measurements

Delivery Scope : 

Testo 315-3 – CO and CO2 meter. USB power adaptor, Cable

Testo 315-3BLUETOOTH – CO and CO2 meter with Bluetooth for ambient air measurements, USB power adaptor, cable.

Technical Data

General technical data
Operating humidity 0 to 95 %RH
Weight 200 g
Dimensions 190 x 65 x 40 mm
Operating temperature 0 to +40 °C
Protection class IP40 acc. to EN 60529
Standards According to EN 50543
EU-/EG-guidelines 2004/108/EG
Interface IRDA / optional Bluetooth
Storage battery type Lithium polymer rechargeable battery
Battery life 10 h measurement time (at +20 °C/+68 °F) / Mains operation possible
Battery charge In instrument via charger
Battery charging option In instrument via mains unit
Storage temperature -20 to +60 °C
Attachable humidity module – Capacitive
Measuring range +5 to +95 %RH
Accuracy ±2.5 %RH (5 to +95 %RH)
Resolution 0.1 %RH
Ambient CO₂
Measuring range 0 to 10000 ppm
Accuracy ±300 ppm (0 to 4000 ppm)

8 % of mv (4000 to 6000 ppm)

500 ppm (6000 to 10000 ppm)

Resolution 10 ppm
Ambient CO
Measuring range 0 to 100 ppm
Accuracy ±3 ppm (0 to 20 ppm)

±5 ppm (>20 ppm)

Resolution 0.5 ppm
Measuring range -10 to +60 °C
Accuracy ±0.5 °C (±1 Digit)
Resolution 0.1 °C

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