Skip to main content Skip to search Skip to main navigation

COMET 2091-250/C – Pt1000 Stick-in Probe, -50 to +250 °C, RCA connector

COMET 2091-250/C Pt1000 Stick-in Probe 250 mm –50 to +250 °C 

The COMET 2091‑250/C is an extra‑long, professional Pt1000 stick‑in probe with a CINCH connector, designed for direct temperature measurement in soft solids, bulk materials, liquids, and gases within the range of –50 to +250 °C. The particularly long measuring rod (250 mm) penetrates deeply into large silos, tall storage piles, compost heaps, pellets, sand, soil, flour, plastic granulate, or similar media – making it ideal for drying systems, biomass, agricultural and recycling processes, or transport vehicles where standard probes cannot reach deep enough.

The Class A Pt1000 sensor guarantees maximum precision and long‑term stability. The flexible, shielded PVC cable (1 m standard) remains durable even after repeated insertion and removal. The CINCH connector enables fast and secure connection to COMET transmitters, data loggers, or any Pt1000 input device.

The probe is designed for demanding, daily use in agriculture, food, plastics, biomass, and recycling industries. Inserted deep into bulk material within seconds, it immediately delivers precise readings for drying control, fire prevention, quality assurance, or process optimization – even in hot media up to +250 °C.

Why the COMET 2091‑250/C is the ideal high‑temperature probe:

  • Extra‑long 250 mm stick‑in rod – deep penetration into tall piles
  • Measuring range –50 to +250 °C – perfect for drying & high‑temperature applications
  • Pt1000 Class A – highest accuracy
  • Robust shielded PVC cable – flexible & durable
  • CINCH connector – quick, secure connection
  • Fast response time – instant readings
  • IP67 protection – resistant to dust, moisture & condensation
  • 30‑month warranty
  • Made in EU – SENSIT/COMET premium quality

Technical data:

  • Item: 2091‑250/C
  • Measuring range: –50 to +200 °C (extended up to +250 °C depending on application)
  • Accuracy: ±(0.15 + 0.002 × |t|) °C – Class A
  • Sensor element: Pt1000 / 3850 ppm/°C
  • Connection: 2‑wire, CINCH connector
  • Response time: t₀.₅ < 12 s (in flowing water)
  • Housing material: Polyamide‑based plastic
  • Dimensions: Rod length 250 mm, diameter 5.7 ± 0.1 mm
  • Cable: Shielded PVC
  • Protection rating: IP67
  • Warranty: 30 months

Typical applications:

  • Large grain, fertilizer, and pellet silos (deep insertion)
  • Compost and biomass monitoring in tall piles
  • Bulk storage and transport
  • Drying systems for agricultural products and wood pellets
  • Flour, sand and granulate mixers
  • Recycling and plastics processing
  • Large‑scale agricultural storage facilities
  • High‑temperature process control in the food industry

Installation – simple & effective

Insert the long 250 mm rod directly into the bulk material or secure it using a mounting bracket. The flexible PVC cable allows easy handling. For best results, insert the probe deeply enough and reposition it regularly.

Available versions:

  • Cable length 1 m
  • Cable length 2 m
  • Cable length 5 m
  • Cable length 10 m

Summary:

  • Temperature probe with Pt1000 sensor.
  • Hand probe with pointed tip, –50 to +250 °C, stainless steel 17240 with LCP handle and Teflon cable.
  • Protection IP68.
  • With CINCH connector.

Scope of delivery:

  • Sensor according to order and selected length
  • User manual including warranty certificate
Datasheets
Datasheet 1

Oops! Your browser doesn't support PDFs!

Datasheet 1 (247.40 KB)
Datasheet 2

Oops! Your browser doesn't support PDFs!

Datasheet 2 (106.97 KB)

Insertion Temperature Probe 2091-250/C with CINCH Connector

Measured quantity

  • Temperature

Temperature sensor

  • Measuring range: −50 to +250 °C
  • Measuring principle: Pt1000 (3850 ppm/°C)
  • Accuracy of measuring element: ±(0.15 + 0.002 |t|) °C
  • Connection type of measuring element: 2‑wire, 3‑wire, or 4‑wire connection
  • Lead wire resistance (2‑wire): 0.075 Ω
  • Max. / recommended measuring current: Class A: 0.5 mA / 0.2 mA; Class B: 0.8 mA / 0.3 mA
  • Response time: τ0.5 < 5 s (in flowing water > 0.2 m/s)

General technical data

  • Power supply: SELV or PELV
  • Sensor protection rating: IP68 (1 h / 1 m) according to EN 60529
  • Housing material: Stainless steel DIN 1.4301
  • Housing dimensions: Length 140 mm; diameter 4.0 + 0.2 mm
  • Dielectric strength: 500 VAC according to EN 60730‑1
  • Insulation resistance: > 200 MΩ at 500 VDC, 25 ± 3 °C
  • Connection cable (2‑wire): PTFE‑insulated, shielded, 2 × 0.14 mm²
  • Connection cable (3‑ and 4‑wire): PTFE‑insulated, shielded, 4 × 0.14 mm²
  • Lead wire resistance: 0.254 Ω / 1 m at 25 °C
  • Grip material: PEEK (black)

Operating conditions

  • Temperature at connection cable: −50 to +250 °C
  • Relative ambient humidity: 10 to 100 %
  • Atmospheric pressure: 70 to 106 kPa

Storage conditions

  • Ambient temperature: 5 to 40 °C
  • Relative humidity: 5 to 85 %

* For 2‑wire connections, the influence of cable resistance and lead wires must be added to the measured value. Example: at 25 °C, add 0.066 °C per 1 m of cable + 0.020 °C.

Manufacturer Information:

COMET SYSTEM, s.r.o.

Bezručova 2901

756 61 Rožnov pod Radhoštěm
Czech Republic

Phone: +420 571 653 990

Email: info@cometsystem.com

Responsible person:

Didactum® Security GmbH

Im Mühlenfeld 4

48163 Münster
Deutschland

Fon: (+49) 250 19 71 63 54 / (+49) 171 33 11 577

Email: info@didactum-security.de

Questions?

You have questions about Comet products?

You would like a quote?

Contact us