Government authorities

The testo 350 is a rugged, easy to use exhaust gas analyzer for carrying out precise industrial emission measurements and providing proper data administration.  The Analysis Box can be operated with up to 6 gas sensors (5 optional).  Select from sensors for CO, NO, NO₂, SO₂, H₂S, C_xH_y and CO₂.

• Increased measurement range for unlimited measurements, even when gas concentrations are higher

• Easy to change gas sensors / easy to access parts

• Sealed housing / built in impact protection

• Auto processing of programs over a longer period

• 4-gas flexibility in a rugged, compact, handheld design

• Multi-sensor capability and equipped to handle extreme concentrations

• Automatic CO-dilution sensor protections keep your analyzer working longer

• Designed for simple, fast operation and constructed for the most demanding use!

The testo 350 portable gas analyzer is a rugged, easy to use combustion analyzer for carrying out precise industrial emission measurements, and providing proper data administration with the TECsoft emission compliance software. Whether you are testing for compliance or troubleshooting and tuning, the testo 350 portable emission analyzer offers everything you need!

• User-friendly application-specific menu guide, including engine testing, boiler and burner tuning, turbine testing, industrial process testing, and mining testing

• Large color display, robust, industrial-type housing

• Has a wide selection of probes for every application

• Represents the latest in portable emission analyzer technology for longer up-time in the field and lower cost of ownership

The testo 350 MARITIME is the world’s first portable emission analyzer for diesel ship engines approved for MARPOL Annex VI and the NO_x Technical Code.  Built to meet the demands of maritime conditions, it measures O₂, CO, and NO_x more easily and less costly than other methods.

• Measures O₂, CO, NO_X (NO + NO₂, separate), SO₂, – high precision and long-term stable

• Ready to measure after 2 minutes

• Simple and accurate testing with the emission measurements quickly seen on the large, back-lit display

• Determination of the fuel sulphur content by means of SO₂/CO₂/ ratio according to MEPC 184 (59)

Stub type, uneven surface temperature probe with a Type K thermocouple connection. Probe is designed to be used for short term measurements.

• Fast response time (3 seconds) thanks to the thermocouple strip

• Thermocouple type K

• Also suitable for uneven surfaces

• Measuring range short-term up to +500°C

A Type K Thermocouple waterproof immersion/penetration probe. This probe is capable of reading temperature values from -76.0° to 752.0 °F.

• Thermocouple type K

• Response time of 7 seconds

• Waterproof

• Measuring range: -60 to +400 °C

Humidity/temperature probe

• Humidity sensor with long-term stability

• Temperature measuring range: -20 to +70 °C

Temperature probe with magnet for surface measurements on metal surfaces

• Self-adhesive thanks to a magnet: probe for measuring surface temperature on metal surfaces

• TC Type K temperature probe with 1.6 m cable

• Measuring range: (-60 to 750 °F) -50 to +400 °C

Air Probe with a Type K connection allows you to accurately measure air temperature. Compatible with any Testo product with a Type K connector, this Air Probe is a solution for a variety of temperature applications.

• Thermocouple type K 

• Short response time thanks to the exposed sensor 

• Can be connected to a wide range of measuring instruments

• Measuring range: -60 to +400 °C

Pipe clamp probe for measuring pipes with a diameter of 0.2” to 2.5''.  Probe is capable of short term measurements of up to 536 °F.

• Enables quick, easy attachment of the probe to pipes with a diameter of 0.2” to 2.5”

• TC Type K temperature probe with 4 foot cable

• Measuring range: -76 to 266 °F, briefly up to 536 °F

Waterproof NTC immersion/penetration probe

• NTC temperature sensor

• Waterproof

• Measuring accuracy of up to ±0.2 °C

• Measuring range: -50 to +150 °C

Efficient and fast-action immersion probe, waterproof, T/C Type K

• Short response time of 2 seconds

• Very large measuring range: -60 to +1000 °C

• Waterproof

• Thermocouple type K

Waterproof surface probe with widenend measurement tip for flat surfaces, T/C Type K

• Extra-wide measuring tip for flat surfaces

• Thermocouple type K

• Waterproof and robust (sturdy probe shaft)

• Measuring range: -60 to +400 °C

NTC Air Probe with a miniDIN type connection allows you to accurately measure air temperature. Compatible with any Testo product with a miniDIN connector, the NTC Air Probe is a solution for a variety of temperature applications.

• NTC temperature sensor

• High level of accuracy of up to ±0.2 °C 

• Short response time thanks to the exposed sensor

• Measuring range: -50 to +125 °C

Efficient, waterproof surface probe with small measurement head for flat surfaces, T/C Type K

• Low-mass probe: very short response time for accurate measurement results

• Thermocouple type K

• Waterproof

• Very large measuring range: -60 °C to +1000 °C

Fast-action surface probe with spring thermocouple for uneven surfaces, short-term to +932°F, T/C Type K

• Fast response time (3 seconds) thanks to the thermocouple strip

• Thermocouple type K

• Also suitable for uneven surfaces

• Measuring range: -60 to +300 °C

Waterproof NTC Temperature probe that is designed with a flat tip in order to take accurate readings of surface temperatures. Probe is waterproof making it ideal for areas where possible submersion may occur.

• NTC temperature sensor

• Measuring accuracy of up to ±0.2 °C

• Ideal for measurements on refrigeration systems, in cold storage warehouses/rooms or outdoors

• Measuring range: -50 to +150 °C

Temperature probe with Velcro for surface measurements on pipes

• With Velcro: makes it easy to attach the surface probe to pipes with a pipe diameter of up to 75 mm

• NTC temperature probe with cable

• Measuring range: -58 to 158 °F (-50 to +70 °C)

Super-quick, waterproof immersion/penetration probe, T/C Type K

• 1.5 mm thin probe tip for fast temperature recording, 60 mm long probe shaft

• Very short response time of 3 seconds

• Measuring range: -60 to +800 °C

• Splash-proof in accordance with IP54

Humidity and temperature probe Ø 0.5"

• High-precision humidity measurement: accuracy of up to ±1% RH

• Intelligent calibration concept

• Temperature measuring range: -20 to +70 °C