The STR-21G-S1 is designed for high-precision solar radiation measurement and provides industry-leading accuracy, reliability and value for solar energy research, monitoring, and meteorological applications.
Built on the STR-21G platform, a single-arm, 2-axis sun tracker with an easy, fully automated setup procedure and low power consumption, the STR-21G-S1 (MTI.AWS.EK.21G) delivers smooth, consistent, and precise tracking.
Together with the ISO 9060:2018 class-leading accuracy and performance of EKO's signature Class A MS-80S Pyranometer, and Class A MS-57 Pyrheliometer, the STR-21G-S1 with shading disk assembly is an elite solution; proven worldwide in a range of environments and ready to deliver outstanding results.
STR-21G-S1 Solar Monitoring Stations
• Arms: 1
• Pointing accuracy Solar elevation: 0 to 87°: < 0.01°
• Angle resolution: 0.009°
• Rotation angle Zenith: -15 to 95°
• Rotation angle Azimuth: 0 to 360°
• Torque: 12 N⋅m
• Payload side arms: 7kg
• Sun sensor FOV: 30°
• Ingress protection: IP 65
• Operating temperature range: -40 to 50°C
• Communication: RS-422 / 232C
• Power consumption: < 20W
• Motor: Stepper motor
• Driving technology: Harmonic Drive®
• Tracking modes: Automatic & Manual
• Tripod: Table tripod
• Pyrheliometer mount: Adjustable / One sensor position
• Cable length: 10m
• Weight: 14.5 kg (with tripod)