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Solar Irradiance Meter

Solar Energy Meter

The easiest way to obtain accurate irradiance readings.

Solar Irradiance Meter
Solar Irradiance Meter
Item#: DSsolarmeter
Availability: Usually ships in 1-2 weeks

Product Description

A small hand-held irradiance meter that gives a digital readout of the sun's power. Just point the calibrated PV cell at the sun and read the irradiance in Watts/m2. It's great for those who test PV modules or arrays in the field. It's rugged and its small size (2.5" x 4.5" x 0.8") and weight (less than 6 ounces), make it ideal for anyone needing an instantaneous measurement of solar intensity.

Pocket Size




The accuracy is ±3% at 1,000 Watts/m2 and air mass 1.5.
Resolution is 1 Watt/m2. The included 9-Volt battery will provide more than 6 months of operation. Pyranometers maintained by Sandia National Laboratories are used as a reference for the meters' calibration.

The solar meter provides an accurate reading (3%) from 0 - 1200 Watts/m2 when they are pointed at the sun. Resolution is 1 W/m2, maximum display reading is 1999. The irradiance value is presented on a 0.75" easy-to-read LCD display. The meter is (2.5" x 4.5" x 1.0" inches) (6.4 x 11.4 x 2.5 cm) and weighs (less than 5 ounces) (140 g) with 9-V battery.

PV Sensor: The meter uses a polycrystalline silicon PV cell as the sensor. The cell is mounted on the top end of the meter, perpendicular to the display. The sensor responds to a spectum bandwidth of approximately 0.3-1.1 microns. The meter is intended for outdoor measurements of natural sunlight. The PV sensor is located behind a plastic diffuser. 

Meter Calibration: Meters are calibrated on clear days in natural sunlight and adjusted to a reference cell periodically calibrated with pyranometers at Sandia National Laboratories. Meters are pointed directly at the sun for calibration with the plastic protection cover in place. Off-angle calibration is not done. However, empirical data indicate meter-to-meter performance remains consistent up to 40 degrees off-angle from the direct normal. Beyond 40 degrees the readings start to diverge and may reach 10 - 15% when pointed 70-80 degrees away from the sun. The meters are calibrated in groups and records are not maintained. 

DS Solar Meter: $170.00
Shipping: included for U.S.

Shipping: Overseas $25 shipping charge added