Hagner - Model E4-X - Digital Luxmeter - Datasheet

The E4-X Hagner Digital Luxmeter is a precision instrument for measureing illuminance over a range of 0.01-200,000 lux, in the field as well as in the laboratory. The detector, connected to the instrument by a 2 metres flexible lead, is fully cosine corrected for the spectral sensitivity of the human eye in accordance with the CIE standard. The light sensitive device used in the detector is a very stable, long-life silicon photo diode which performs to a high reliability and minimizes the necessity of recalibration.