Pt1000 temperature sensor 3S-MT-PT1000

with housingself-adhesiveM12 connector

Product overview
The module temperature sensor measures the PV module back-side temperature in °C using a PT1000 probe placed between the backsheet and EVA layers. The sensor housing reproduces the thermal transfer of a PV module to provide representative temperature readings. Compatible with SEVEN Irradiance Sensor Box and designed for PV plant monitoring in accordance with IEC 60751:2022 and IEC 61724-1:2021.

Design and principle
The device is a temperature transmitter with PT1000 output, providing measurement values as ohmic resistance signals following PT1000 characteristics. Its cover geometry and materials emulate module backsheet behavior to match heat transfer dynamics of PV modules. The transmitter connects to SEVEN Irradiance Sensor and Sensor Box models via a 5‑pin IP67 connector. The PT1000 output can be interfaced directly to data loggers, monitoring systems or acquisition devices with compatible resistance inputs.

Installation
Per IEC 61724-1:2021, place the sensor at the center of a cell near the module midpoint, avoiding cell boundaries. Ensure the mounting area is completely dry and free of contaminants; dew may prevent adhesion. Fix the sensor to the module backsheet using the supplied 3M® tape. Follow local site procedures for cable routing and strain relief.

Advantages

• Performance ratio (PR) accuracy: provides precise module temperature data required for reliable PR and yield assessments.
• Thermal management: enables detection and mitigation of overheating risks through real-time temperature monitoring.
• Field-ready: IP67 protection and UV/weather‑resistant cable for durable outdoor operation.

Additional product information

• Class: Class A according to IEC 60751:2022 and IEC 61724-1:2021.
• Warranty: 2 years.
• Price range (indicative): 50–90 EUR.
• Lead times: small orders (≤20 pcs): ≈1–2 weeks; bulk (20–100 pcs): ≈4–5 weeks.
• Cable: supplied with 3 m LI2YC11Y-TP PUR cable (2x2x0.22 mm², 24 AWG), UV and weather resistant; other lengths on request.

Technical specifications

• Item code: 3S-MT-PT1000
• Sensor type: PT1000
• Measuring range: -40°C to +85°C
• Accuracy: ±0.1°C
• Resolution: 0.1°C
• Data output: PT1000 (ohmic resistance)
• Electrical connection: 3 m LI2YC11Y-TP PUR cable, 2x2x0.22 mm² (24 AWG), UV & weather resistant
• Operating temperature range: -40°C to +85°C
• Sensor cover dimensions: Ø 33 mm x 3.5 mm (Plastic); Ø 35 mm x 2 mm (EVA)
• Weight: 167 g
• IP rating: IP67
• Sensor cover: laminated backsheet (EVA–Tedlar) / ABS plastic injection
• Mounting method: 3M® tape to back of module
• Standards: Class A according to IEC 60751:2022 and IEC 61724-1:2021