Infrared cloud detection
The infrared sensor measures sky temperature to support cloud detection and cloud-condition monitoring.
ALL-IN-ONE SKY MONITORING SENSOR
CELESTRA SKY SENSOR PRO
Clouds. Sky brightness. Spectral light.
Monitor cloud conditions, night-sky brightness and visible and near-infrared light with one compact sensor platform.
Sky Sensor Pro combines infrared sky-temperature sensing, SQM and RGB/NIR measurements with optional GPS location and time information, Wi-Fi connectivity, solar charging and an internal battery. Its aluminum enclosure supports pole or flat-surface installation.
CONNECTED SKY MEASUREMENTS
Key Features
Sky brightness (SQM)
Monitor night-sky brightness in mag/arcsec² alongside cloud conditions.
RGB light measurement
Measure visible ambient light through red, green and blue channels.
Near-infrared monitoring
The NIR channel adds near-infrared light measurements to the visible-light readings.
Wi-Fi connectivity
Wireless connectivity through an ESP32-S3 platform operating at 2.4 GHz.
Solar charging
A fixed-angle solar panel charges the internal battery.
Internal battery
Rechargeable battery power supports night operation. Runtime depends on the configuration and operating conditions.
Flexible mounting
Choose a flat mounting surface or a pole installation with the supplied bracket.
Optional GPS positioning
Location and time information with the optional GPS configuration.
DESIGN & INSTALLATION
Flat glass. Compact construction.
Flat glass top
Flat tempered glass with no visible top screws. Cloud, SQM and RGB/NIR sensing areas are arranged on the same top face.
Angled solar panel
Approx. 85 × 70 mm panel at a fixed angle of approximately 25°.
Pole mounting
Pole-mount bracket and a flat base support installation at the observing site.
SYSTEM DETAILS
Technical Specifications
| Specification | Details |
|---|---|
| Diameter | 70 mm |
| Height | 200 mm |
| Solar panel | Approx. 85 × 70 mm; fixed angle |
| Panel angle | Approx. 25° |
| Weight | Approx. 600 g, including battery |
| Body material | Anodized aluminum |
| Top cover | Flat tempered glass; no visible top screws |
| Protection rating | IP65 / IP67 — confirm the applicable enclosure configuration |
| Sensors | Cloud (IR), SQM, RGB, NIR |
| Positioning | Optional GPS for location and time information |
| Wi-Fi | ESP32-S3 (2.4 GHz) |
| Battery | Li-ion; example configuration: 3.7 V, 6600 mAh |
| Operating temperature | −20 °C to +60 °C |
| Mounting | Flat base or pole mount; bracket included |
Panel size, panel angle and weight are approximate. The battery value is an example configuration. Confirm the battery specification and applicable IP65 or IP67 protection rating for the selected unit.
Documentation & compatibility
For Sky Sensor Pro, include the intended configuration and application when requesting documentation, compatibility, current availability and lead time.
Content reviewed .