Paired PT1000 RTD Temperature Sensor for Heat Meters
This paired PT1000 RTD temperature sensor is designed for heat meters used in hydronic heating, cooling and energy measurement systems. Each matched pair is tested for consistent temperature response and can achieve paired accuracy up to ±0.1°C. Red and blue markings help installers identify the supply and return water ends and reduce installation errors.
Technical Specifications
- Sensor element: PT1000 thin-film platinum RTD
- Application: paired temperature probes for heat meters
- Paired accuracy: up to ±0.1°C, depending on the selected grade and matching process
- Working temperature: 0°C to 105°C
- Pressure rating: PN16 at a flow velocity of 2 m/s
- Temperature coefficient: TCR 3850 ppm/K option
- Long-term stability: maximum change below 0.04% after 1,000 hours at the highest operating temperature
- Housing: 304 stainless steel tube with movable copper nut connection
- Cable: PVC cable, approximately 4.2 mm diameter
- Wiring: two-wire or three-wire configuration
- Standards: options aligned with EN 1434 and CJ 128-2007 requirements
Applications
Typical applications include residential heat meters, commercial hydronic heating systems, district energy equipment, water-based cooling systems and building energy-management projects. The matched probe design supports accurate temperature difference measurement between supply and return lines.
OEM Customization
Starlight Sensors can customize the probe diameter and length, cable length, connector, mounting thread, marking method, wiring and matching tolerance to meet your heat-meter design. Send your drawing, sample, standard requirements and target accuracy to request a quotation.
Browse our PT100 and PT1000 RTD temperature sensor range or contact our engineering team for matched sensor samples and OEM support.











