Light Sensor

The Echo Light Sensor (also known as a Photo Sensor) provides light level measurement and lighting control for the connected Echo control system. The sensor measures lighting conditions to maintain a programmed lighting output in both dimmed and switched systems. Light Sensors are available in either black or white finish:

Echo Light Sensor
E-LS Light Sensor head with controller
E-LSC

Light Sensor controller Only

E-LSH Light Sensor head Only

Each Light Sensor controller supports one or two Light Sensor heads. A Light Sensor head may be installed within the controller or installed remotely, using up to 1,000 feet (304m) of 16 AWG (1.3mm2) wire per controller. When using a pair of Light Sensor heads, both sensor heads transmit their light readings to a single Light Sensor controller. The controller averages the levels and uses them to control lighting within the space.

Reference the Unison Echo Light Sensor Installation Guide for more information on installing this sensor. All ETC documentation is available for free download from etcconnect.com.

Configuring the Light Sensor

Use the drop-down menus and keypad to set the configurable features.

Note:  Changes made to the Light Sensor configuration settings using the EchoAccess App impact the behavior of the sensor when Custom Config mode has been enabled (set to On). The Custom Config mode DIP switch is located on the circuit board (rear side) of the sensor. A sensor placed in Basic Config mode (Custom Config DIP switch set to Off) is unaffected by EchoAccess App custom configuration settings.

Note:  If Off is played from a station, light sensor events will not turn lights on.

Action Type

Deactivate the switch for Switched mode, or activate the Action Type switch for Dimmed mode, and configure their related actions.

Configuration Sharing

Five buttons are available at the bottom of the configuration screen.

Note:  Share is only available in the EchoAccess Mobile App.