All-out Irradiation Sensor

CaptPro is a breakthrough sensing device that measures global, diffuse, direct, and ground-reflected solar irradiation without sun trackers or other moving parts.


  • Small, rugged, portable and ligthweigth
  • Extremely easy to install and to maintain
  • No routine adjustment
  • Polar alignment and tilt-plane independent
  • Usable under any weather conditions
  • Natively designed to be configured in wireless distributed sensing networks delivering highly accurate irradiation assessment and no need for routine calibration

Irradiation monitoring made simple, accurate, affordable

Its game-changing design and proprietary algorithm summarize in a single self-standing device the output of pyranometers and pyrheliometers, while eliminating the need for extra equipment, such as solar trackers.

In addition to irradiation measurement, it also delivers data on the spectral bands (infrared, visible, and ultra- violet) of all four types of irradiation measured, and on the sun positioning.

Cut costs, grow profits

By dramatically boosting the fine-grained localization of system failures, inefficiencies and production drops with unmatched, pin-point detail, CaptPro allows to maximize energy production, reduce O&M costs, and to increase profitability for investors, owners, and managers of PV plants.
At a cost sensibly lower than a single monitoring station featuring pyranometers, pyrheliometers and sun trackers, and with dramatically lower maintenance cost, a wireless network of CaptPro nodes provides +300% more accurate information about plant performance, 10x more precise localization of faults, and the detection of production drops of the order of 1%, thus enabling an increase of up to +5% in energy yield.


  • PV plant performance monitoring
    and yield forecasting
  • Solar energy site prospecting

CaptPro has been

  • calibrated by the World Radiation Centre
  • tested by Enel Green Power

CaptPro is a sunto patented technology.


Digital OutputRS485 Modbus, Serial Output
Response Time<1 s
Sensitivity1 W
Accuracy3% (value not affected by tracking errors typical of pyrheliometers’ measurements)
Dynamic Range0-2000 W
IR Spectral Range580-1030 nm
VIS Spectral Range380-580 nm
UV Spectral Range280-300 nm
Spectral OutputIntegrated and 3-bands split
Mounting Zenithal Tilt Tolerance± 5 degree
Mounting Azimuthal Tilt Tolerance± 180 degree
Field of View3π Rad
Max Data Rate (complete dataset)1 Hz
Operating Temperature Range -30°C ÷ 85°C
Humidity Range0-100%
International Protection67
Measure Stability>99% per year
Max Power Consumption0.1 W
Weight (without cable)150 gr


You can now pre-order CaptPro

DescriptionItem CodeQuantity
All-out Irradiation Sensor with serial output. Supplied with 1 m cable, User Guide and calibration certificateCPRO1-SER
All-out Irradiation Sensor with RS485 Modbus output. Supplied with 1 m cable, User Guide and calibration certificateCPRO1-RSM


DescriptionItem CodeQuantity
All-out Irradiation Sensor 3m extension cableCPRO1-C03
All-out Irradiation Sensor 5m extension cableCPRO1-C05
All-out Irradiation Sensor 10m extension cableCPRO1-C10
All-out Irradiation Sensor 25m extension cableCPRO1-C25


DescriptionItem CodeQuantity
Wireless Docking Station with 10W PV panelWDS1-CA5


DescriptionItem CodeQuantity
Factory recalibration for no. 1 All-out Irradiation SensorCPRO1-CAL