PCE Instruments SPM 1 Solar Power Meter 0 to 2000 W/m²

Model # SPM 1

PCE-SPM 1 is a photovoltaic (PV) light meter used to measure solar radiation, solar energy or solar power.
The meter’s easy-to-read 4-digit LCD screen clearly displays P_tot in W/m² or BTU/(ft² x h), while the device’s auto data memory stores up to 43,000 data sets.
Ideal for solar panel site surveying, installation, inspection and monitoring as well as for solar energy research and product development

PCE-SPM 1 is a photovoltaic (PV) light meter used to measure solar radiation, solar energy or solar power. The meter’s easy-to-read 4-digit LCD screen clearly displays P_tot in W/m² or BTU/(ft² x h), while the device’s auto data memory stores up to 43,000 data sets.
Measuring range: 0 … 2000 W/m² or 0 … 634 BTU/(ft² x h)
Resolution: 0.1 W/m² or 0.1 BTU/(ft² x h)
Accuracy: ±10 W/m² or ±3 BTU/(ft² x h) or ±5%; whichever is greatest in sunlight
Minimum, maximum and data hold functions
Built-in datalogging capability allows for long-term recording of measurements over time
Powered by 4 x AAA Li-ion batteries for approx. 16 days of continuous use at full charge
RS-232 data port for downloading measurement data to PC
Includes CD-ROM with Windows-compatible software for detailed data analysis
Ideal for solar panel site surveying, installation, inspection and monitoring as well as for solar energy research and product development

Measurement range	0 … 2000 W/m² or 0 … 634 BTU/(ft² x h)
Resolution	0.1 W/m² or 0.1 BTU/(ft² x h)
Accuracy	±10 W/m² or ±3 BTU/(ft² x h) or ±5%; whichever is greatest in sunlight Additional temperature induced error ±0.38W/m²/C or ±0.12 BTU/(ft² x h)/ºC from 25ºC / 77ºF
Angular accuracy	Cosine corrected < 5% for angles < 60º
Drift	<± 2% per year
Sampling rate	4 times per second
Detector	1 x silicon photovoltaic sensor
Internal memory	Auto data memory capacity: 43,000 sets Manual data memory capacity: 99 sets
Operating conditions	0 … 50ºC / 32 … 122ºF; < 80% RH
Power supply	4 x AAA Li-ion batteries (approx. 16 days of continuous use at full charge)
Dimensions	111 x 64 x 34 mm or 4.37 x 2.52 x 1.34 in
Weight	158 g / < 1 lb