COMET Pt1000TG68/0 Immersion Probe IP67 -50 to +150 °C

COMET Pt1000TG68/0 Immersion Probe IP67 –50 to +150 °C

The COMET Pt1000TG68/0 (TG68 Pt1000/3850) is a universal immersion temperature probe designed for professional use in liquids and gases from –50 to +150 °C. With its high-quality stainless steel housing and heat-resistant, shielded silicone cable, it can remain permanently immersed in water, oil, glycol, heating circuits, solar systems, or other non-aggressive media – completely maintenance-free and durable.

The probe is specifically built for demanding continuous operation: heating, hot water, solar and cooling systems, process water, tanks, wells, HVAC systems, and all areas requiring reliable and precise temperature measurements under humid or wet conditions.

The Pt1000 sensor element (Class A) guarantees maximum accuracy and long-term stability. The flexible silicone cable remains fully functional even at +150 °C, ensuring interference-free signals. The probe is delivered without a connector, allowing direct wiring to COMET transmitters (e.g., T4411, T3419, P8510), data loggers, or any PLC with a Pt1000 input.

Thanks to its compact design and full IP67 protection, the TG68/0 has long been the standard in the heating, HVAC, and solar industries.

Why the COMET Pt1000TG68/0 is the best continuous immersion probe:

• Permanently immersible – approved for long-term liquid measurement
• Wide measuring range –50 to +150 °C – from antifreeze to hot water
• Pt1000 Class A – maximum accuracy & repeatability
• Stainless steel housing – corrosion-resistant and food-safe
• Shielded silicone cable – remains flexible up to +150 °C
• Fully sealed IP67 – resistant to condensation and immersion
• Fast response time – ideal for control applications
• Without connector – freely configurable connection
• Universally usable – heating, solar, cooling, process, air
• Made in EU – SENSIT / COMET quality

Technical data:

• Measuring range: –50 to +150 °C
• Sensor element: Pt1000 / 3850 ppm / °C, Class A
• Connection: 2-wire, without connector
• Housing material: Stainless steel
• Cable: Silicone, shielded, high-temperature resistant
• Cable length: Depending on selection
• Protection rating: IP67 – permanently immersible
• Applications: Liquids, gases, permanent immersion possible
• Manufacturer: SENSIT s.r.o. (COMET System Partner)

Typical applications:

• Heating supply and return lines
• Hot water and buffer tanks
• Solar thermal systems
• Cooling and air-conditioning systems
• Process water and storage tanks
• Wells and groundwater measurement
• Ventilation ducts and humid environments
• Food and beverage production

Installation:

Simply immerse or secure using a clamp or immersion sleeve. The silicone cable withstands continuous operation at +150 °C while remaining flexible – ideal for tight installation conditions.

Available versions:

• Cable length 2 meters
• Cable length 5 meters
• Cable length 10 meters

Summary:

• Multipurpose waterproof probe IP68 –50 to +200 °C
• Intended for temperature measurement of gaseous and liquid media
• Maximum operating temperature range: –50 to +200 °C
• Connection cable: silicone-insulated and shielded
• The probe meets protection class IP68 (1 bar) according to EN 60529 and is designed for continuous underwater temperature measurement up to 5 m depth
• The method of application must consider the temperature and chemical resistance of the probe housing and connection cable.

Scope of delivery:

• Sensor according to selected cable length (see above)
• User manual including warranty certificate