The Hagner ELV-841 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).