COMET SN252E – Ultra-thin Pt1000 temperature probe, 3 mm diameter, -50 to +200 °C

COMET SN252E – Ultra-thin Pt1000 Temperature Probe Ø 3 mm, -50 to +200 °C, Class A, ELKA Connector 

The COMET SN252E is the ultra-thin Pt1000 temperature probe with only 3 mm diameter – the perfect choice for fast and precise contact measurements in gases, liquids, and solids. Thanks to its extremely slim stainless steel sensing tip (DIN 1.4301) and high accuracy Class A (±0.15 °C + 0.002 × t), it reacts lightning-fast to temperature changes (t0.5 ≤ 3 s, t0.9 ≤ 9 s) – ideal for narrow boreholes, small tubes, thin layers, laboratory applications, food inspection, machine monitoring, or anywhere minimal penetration depth and maximum response speed are required.

The Pt1000 resistance element (3850 ppm/°C) is designed in 2-wire configuration and connected with a 1-meter shielded Teflon cable (white) – chemically resistant, temperature-stable, and interference-proof. The ELKA connector ensures safe, quick connection to COMET measuring devices, data loggers, or transmitters. The IP67 housing provides reliable protection against dust and water jets – even during intensive cleaning or use in humid environments. The measuring range extends from –50 to +200 °C – ideal for use in industry, laboratories, cooling and heating applications.

The probe is maintenance-free, long-term stable, and available with a traceable calibration certificate (according to EN ISO/IEC 17025) – top quality for critical applications. Whether used as a replacement probe, extension, or for new installations – the SN252E impresses with precision, durability, and ease of use.

Why the COMET SN252E is the best ultra-thin Pt1000 probe:

• Ultra-thin Ø 3 mm – minimal penetration depth, ultra-fast response
• Class A accuracy – ±(0.15 + 0.002 × t) °C
• Measuring range –50 to +200 °C – versatile in use
• ELKA connector – safe, quick connection
• Teflon shielded cable – chemically resistant & interference-proof
• IP67 protection – dustproof & water jet resistant
• Stainless steel 1.4301 – corrosion-resistant & durable
• Fast response time – t0.5 ≤ 3 s, t0.9 ≤ 9 s
• Original COMET quality – 30-month warranty

Technical Data SN252E:

• Measuring range: –50 to +200 °C
• Accuracy: ±(0.15 + 0.002 × t) °C
• Accuracy class: A
• Response time: t0.5 ≤ 3 s, t0.9 ≤ 9 s
• Sensing element: Pt1000 (3850 ppm/°C)
• Connection: 2-wire
• Probe tip: Stainless steel DIN 1.4301, Ø 3 mm, length 40 mm
• Cable: Teflon shielded (white), 1 m
• Connector: ELKA
• Protection rating: IP67
• Warranty: 30 months

Perfectly suited for:

• Narrow boreholes & small tubes
• Food & beverage monitoring
• Laboratory & test bench measurements
• Machine & motor monitoring
• Cooling & heating systems
• Surface & layer temperature measurement
• Chemically demanding media
• COMET transmitters & loggers

Mounting & use – effortless

Insert the probe into the measuring point or clamp it, plug the ELKA connector into the COMET device – done. The Teflon cable is flexible and chemically resistant, and IP67 protection allows use in humid environments. Calibration remains stable over time.

Available variants:

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

Summary:

• The probes are designed for contact-based temperature measurement of gaseous, liquid, and solid substances.
• The ultra-thin housing with only 3 mm diameter ensures a fast response to temperature changes.
• The connecting cable is Teflon-insulated and shielded.
• The sensors are universally applicable.
• The application method must consider the temperature and chemical resistance of the housing and connecting cable.
• The sensors are also suitable for use in chemically non-aggressive environments.

Scope of delivery:

• Sensor in the selected length