Hagner lightsensors

ELV-741

The Hagner ELV-741 Light Sensor is designed for continuous, stationary outdoor measurement of illuminance. It consists of a Vλ-filtered and cosine corrected detector and an amplifier with regulated current output (4-20 mA). The case is watertight, fitted with a thermostatocally controlled internal anti-condensation heater. Measuring range is specified with order (e.g. 0 - 1,500 lux).

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ELV-741-L

The Hagner ELV-641-L Luminance Sensor is designed for continuous, stationary indoor measurement of illuminance. It consists of a V_λ-filtered and cosine corrected detector and an amplifier with regulated current output (4-20 mA), built in to a plastic case. Measuring range is specified with order (e.g. 0 - 250 cd/m²).