Hagner - Model EC1 - Digital Luxmeter - Datasheet

The Hagner Digital Luxmeter, model EC1, is a small, handy and extremely easy-to-use instrument for accurate measurement of illuminance over a range of 0.1-200,000 lux. With both automatic zeroing and on/off switch, the only controls needed are a four-position range selection switch and a hold button for retaining the display value.