ELS-1 - Tork Electronic Sensor for Indoor Light Control

ELS-1 Electronic Light Sensor is a low profile device that assures lighting is OFF when sufficient daylight is available, saving precious energy dollars. ELS-1 should be placed about 3 feet from window or incoming daylight: when daylight level falls below the footcandle setting (user selectable), electrical lights will turn ON. When daylight level rises above the footcandle setting, electrical lights will turn OFF. A 30 second delay prevents lights from turning on due to a passing cloud, etc. Adjustable timer for delayed turn-off in 3-15 minutes, and manual override provision in the unlikely event of system failure.