COMET SN270M – Pt1000 Exhaust Gas and Flue Gas Temperature Probe -50 to +400 °C, MiniDIN Connector

COMET SN270M – Pt1000 Exhaust and Flue Gas Temperature Probe -50 to +400 °C (short-term +450 °C), Class A, MiniDin Plug, Teflon Cable 1 m, IP64 

The COMET SN270M is the professional Pt1000 exhaust and flue gas temperature probe with MiniDin plug – specifically developed for precise measurement of flue and exhaust gas temperatures in chimney stoves, wood gasifier boilers, pellet boilers, oil and gas burners, as well as industrial exhaust systems. With a measurement range of -50 to +400 °C (short-term up to +450 °C at the measuring tip) and high accuracy Class A, it delivers exact values even at high temperatures and aggressive gases – ideal for chimney sweeps, heating technicians, energy consultants, and plant operators.

The measuring tip made of corrosion-resistant stainless steel DIN 1.4301 (diameter 6 ± 0.1 mm, length 90/130 mm) with spacer ring (diameter 8 mm) is designed 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 MiniDin plug enables secure, quick connection to COMET measuring devices, data loggers, or transmitters. IP64 protection guards against dust and splash water – even during intensive use in humid or dusty environments.

The probe is maintenance-free, long-term stable, and available with traceable calibration certificate (per EN ISO/IEC 17025) – highest quality for critical applications. Whether for efficiency measurement, emission control, overheating protection, or remote monitoring – the SN270M convinces with precision, robustness, and easy handling. Installation is simple via threaded hole or measuring nozzle – the spacer ring fixes the optimal position in the exhaust flow.

Why the COMET SN270M is the best exhaust Pt1000 probe:

• Special probe for flue and exhaust gases – up to +400 °C (short-term +450 °C)
• Class A accuracy – highest precision across the entire range
• Stainless steel DIN 1.4301 – corrosion- and heat-resistant
• MiniDin plug – secure, quick connection
• Shielded Teflon cable – temperature-resistant up to +260 °C
• IP64 protection – dust- and splash-water-proof
• Fast response time – t0.5 <5 s in flowing water
• Spacer ring diameter 8 mm – optimal positioning in exhaust flow
• Original COMET quality – 30 months warranty
• Traceable calibration certificate – on request

Technical Data SN270M:

• Measurement range: -50 to +400 °C (short-term +450 °C at measuring tip)
• Max. temperature at cable and over spacer ring: +260 °C
• Accuracy: ±(0.15 + 0.002 × t) °C up to +250 °C; ±(0.3 + 0.005 × t) °C above
• 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
• Measuring tip: Stainless steel DIN 1.4301, diameter 6 ± 0.1 mm, length 90/130 mm, spacer ring diameter 8 mm
• Cable: Shielded Teflon
• Plug: MiniDin
• Protection class: IP64

Perfectly suited for:

• Chimney stoves, wood gasifier boilers, and pellet boilers
• Oil and gas burners
• Exhaust and flue gas monitoring
• Efficiency and emission measurement
• Chimney sweeps and energy consulting
• Industrial exhaust systems
• Overheating protection and control
• Connection to COMET transmitters and loggers

Installation and Use – safe and simple

Install probe via threaded hole or measuring nozzle into exhaust pipe (spacer ring fixes position), plug MiniDin connector into COMET device – done. The Teflon cable is heat-resistant up to +260 °C, IP64 protection allows humid exhaust environments. Check maximum temperature before commissioning.

Available Variants:

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

Summary:

• The Pt1000TR050M temperature sensors are designed for temperature measurement of gaseous and liquid substances
• The application temperature range of the sensor is between -50 °C and +400 °C
• The maximum temperature of up to 450 °C can be exceeded short-term (referring to the active measuring area of the sensor, limited by a spacer ring)
• The temperature in the area of the lead with Teflon insulation must not exceed 260 °C
• The sensors meet protection class IP64 according to EN 60529
• They are suitable for temperature measurements in chemically non-aggressive environments. When selecting the application area, a temperature- and chemical-resistant housing and cable must be considered.

Scope of Delivery:

• SN270M in the selected cable length (above)