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The STR-21G-S2 (MTI.AWS.EK.21GS2) is designed to perform the most accurate solar radiation measurements of the three solar radiation components; Direct, Diffuse and Global. Easily integrated into any DAQ system with multiple analog or digital inputs, the STR-21G-S2 features an in-built sun-position sensor and GPS receiver for quick and easy set-up.

Based on the STR-21G Sun tracker with a new shading disk assembly which can be mounted on one arm of the tracker, the system also features the industry-leading Class A MS-80S pyranometer and Class A MS-57 Pyrheliometer. Altogether, the STR-21G-S2 is the most "high-end" sensor system for solar energy research.

The STR-21G-S2 can also be freely configured to measure the required solar radiation components in the most accurate way, ensuring a cost-effective solution for every application.

In harsh environments, the MS-80S can be paired with the optional MV-01 ventilator & heater, while the MS-57 Pyrheliometer features a heated front window, protecting both sensors from condensation and ice for continuous accuracy, whatever the weather.

STR-21G-S2 Solar Monitoring Stations

SKU: MTI.AWS.EK.21GS2
  • • Arms: 1

    • Pointing accuracy Solar elevation: 0 to 87°: <0.01°

    • Angle resolution: 0.009°

    • Rotation angle Zenith: -15 - 95°

    • Rotation angle Azimuth: 0 - 360°

    • Torque: 12 Nm

    • Payload side arms: 7 kg

    • Sun sensor FOV: 30°

    • Ingress protection IP: 65

    • Operating temperature range: -40 - 50°C

    • Communication: RS-422 / 232C

    • Power consumption: < 20 W

    • Motor: Stepper motor

    • Driving technology: Harmonic Drive®

    • Tracking modes: Automatic & Manual

    • Tripod: Table tripod

    • Pyrheliometer mount: Adjustable / One sensor position

    • Cable length: 10 m

    • Weight: 14.5 kg (With tripod)

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