COMET SN270E – Pt1000 Temperature Probe for Flue & Exhaust Gases up to +400 °C

COMET SN270E – Pt1000 Temperature Probe for Flue Gas & Exhaust up to +400 °C (short-term +450 °C), Ø 6 mm, ELKA Connector 

The COMET SN270E is a robust Pt1000 temperature probe specifically designed for flue gas and exhaust measurement in chimneys, stoves, wood gasifiers, pellet boilers, oil and gas burners, and industrial exhaust systems. With a measuring range of –50 to +400 °C (short-term up to +450 °C at the probe tip) and Class A high accuracy (±(0.15 + 0.002 × t) °C up to +250 °C), it provides precise readings even in high-temperature and aggressive gas environments – ideal for chimney sweepers, heating engineers, energy consultants, and plant operators.

The sensing tip is made of corrosion‑resistant stainless steel DIN 1.4301 (Ø 6 ± 0.1 mm, length 90/130 mm) with a spacer ring (Ø 8 mm) for direct installation into exhaust pipes. The shielded Teflon cable (2 × 0.22 mm², 1 meter) is temperature‑resistant up to +260 °C and chemically resistant to flue gases, condensate, and acids. The ELKA connector ensures secure and quick connection to COMET measuring devices, data loggers, or transmitters. IP64 protection safeguards against dust and splashing water – even in humid or dusty environments during intensive use.

The probe is maintenance‑free, long‑term stable, and available with a traceable calibration certificate (according to EN ISO/IEC 17025) – ensuring top‑tier quality for critical applications. Whether for efficiency testing, emissions monitoring, overheat protection, or remote control, the SN270E delivers precision, durability, and ease of use.

Why the COMET SN270E is the Best Flue Gas Pt1000 Probe:

• Special probe for flue gas and exhaust – up to +400 °C (short‑term +450 °C)
• Class A accuracy – ±(0.15 + 0.002 × t) °C up to +250 °C
• Stainless steel DIN 1.4301 – corrosion‑ and heat‑resistant
• ELKA connector – safe, quick connection
• Shielded Teflon cable 1 m – temperature‑resistant up to +260 °C
• IP64 protection – dust‑ and splash‑proof
• Fast response time – t0.5 < 5 s (in flowing water)
• Spacer ring Ø 8 mm – optimal positioning in the flue gas stream

Technical Data SN270E:

• Measuring range: –50 to +400 °C (short‑term +450 °C at probe tip)
• Max. temperature at cable & over spacer ring: +260 °C
• Accuracy: ±(0.15 + 0.002 × t) °C up to +250 °C; ±(0.3 + 0.005 × t) °C above that
• Accuracy class: A
• Response time: t0.5 < 5 s (in flowing water > 0.2 m/s)
• Sensing element: Pt1000 (3850 ppm/°C)
• Connection: 2‑wire
• Sensing tip: stainless steel DIN 1.4301, Ø 6 ± 0.1 mm, length 90/130 mm, spacer ring Ø 8 mm
• Cable: Teflon, shielded
• Connector: ELKA
• Protection rating: IP64
• Warranty: 30 months

Perfectly Suited For:

• Fireplaces, wood gasifiers & pellet boilers
• Oil & gas burners
• Flue gas & exhaust monitoring
• Efficiency & emissions measurement
• Chimney sweepers & energy consultants
• Industrial exhaust systems
• Overheat protection & control
• COMET transmitters & data loggers

Installation & Use – Safe & Simple

Install the probe into the exhaust pipe via a threaded opening or fitting (the spacer ring maintains the correct position), plug the ELKA connector into the COMET device – done. The Teflon cable is heat‑resistant up to +260 °C, and IP64 protection allows safe use in humid exhaust environments. Check the maximum temperature before operation.

Available Versions:

• Cable length 1 meter
• Cable length 2 meters
• Cable length 5 meters
• Cable length 10 meters

Summary:

• Temperature sensors designed for measuring flue gas and exhaust in chimneys, furnaces, and boilers
• Pt1000TR050M temperature sensors are suitable for measuring the temperature of gaseous and liquid media
• Sensor operating temperature range: –50 °C to +400 °C
• Maximum temperature up to +450 °C can be exceeded briefly (applies to the active measuring zone, limited by the spacer ring)
• Temperature in the cable area with Teflon insulation must not exceed +260 °C
• The sensors meet protection class IP64 according to EN 60529
• Suitable for measurements in chemically non‑aggressive environments
• When selecting the application area, ensure the housing and cable are resistant to the relevant temperatures and chemicals

Scope of Delivery:

• Sensor in the selected cable length (see above)