Is the sensor suitable for Bifacial PV modules?

Yes. The sensor is suitable for measuring the temperature of the Bifacial PV modules.

What is the accuracy of the sensor?

The sensor has Class A accuracy compliant to IEC61724-1:2021 standards.

Rigel 2 Module Temperature Sensor | Class A IEC 61724-1:2021 | Aeron Systems

RIGEL 2ModuleTemperatureSensor

Second-generation solar PV surface temperature sensor. Faster response, higher accuracy, and a compact low-profile form factor — purpose-built for both conventional and bifacial PV modules.

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Class A

Accuracy

IP65

IP Rating

-40 to +150 C

Temp Range

RTD PT1000

Sensor

Engineered for Precision. Built for the Field.

Class A Accuracy

Certified to IEC 61724-1:2021 Class A — the standard demanded by international lenders and project auditors for bankable energy yield reports.

Faster Thermal Response

Ultra-low-mass RTD PT1000 element delivers sub-second thermal response — capturing rapid PV module temperature changes with fidelity.

Bifacial PV Ready

Low-profile 7.2 mm body mounts flush on the rear surface of bifacial modules without obstructing rear-side irradiance.

IP65 Rugged Body

Aluminium 6082 enclosure with IP65 ingress protection — sealed for deployment across desert, tropical, and coastal environments.

Self-Adhesive Mount

Ships with a high-performance VHB adhesive pad rated for −40°C to +150°C — module-ready in minutes, no drilling or tools needed.

3 Output Variants

Available in Analog 4–20 mA (MT-A420), PT1000 Resistance (MT-RTD1K), and RS485 Modbus RTU (MT-RS485) — integrates with any data logger or SCADA system.

Technical Specifications

RIGEL 2 MT-A420

Analog 4-20 mA

Output Signal

4 to 20 mA Current

Temperature Range

-40 C to +150 C

Accuracy

Class A +(0.15 + 0.0020 |t|)

Uncertainty

+-0.3 deg

Resolution

0.01 C

Sensor Element Type

RTD PT1000 Class A

Current Consumption

0.5 mA

Operating Temperature

-40 C to +150 C

Ingress Protection

IP65

Material

Aluminium 6082

Dimensions

Dia. 25.4 mm x Thickness 7.2 mm

Weight

<15 g (excl. cable weight)

Cable Diameter

0.216 cm (0.085 in.)

Cable Length

2 meters

* |t| is the numerical value of the temperature in C, irrespective of sign.

Applications

Solar PV Module Temperature Monitoring

The Rigel 2 is the IEC-specified sensor for back-of-module (BOM) temperature measurement on mono- and bifacial PV panels — essential for Performance Ratio and yield assessment.

Utility ScaleC&I SolarBifacial ArraysPerformance Ratio

Surface Temperature Monitoring

Wide operating range from −40°C to +150°C and IP65 protection make the Rigel 2 suitable for general-purpose surface temperature measurement on outdoor structures and equipment.

IndustrialOutdoor StructuresProcess Monitoring