Product Manual
Turf-Tec International Daylight Indicator – Light Meter - Copyright 2013
Page 2 - www.turf-tec.com
Daylight Indicator
Quick Start Guide
1. Place unit in desired location
The unit needs to be placed in the location you require measurement. Once the
unit is in the desired location you can compare the amount of light.
2. Once in place the unit will start measuring
Press the button on the shoulder of the Daylight
Indicator. The LEDs will light upward, and will blink
every 4 seconds to show the current light intensity.
Read the value from the right side of the LEDs.
3. Wait 24 hours
The Daylight Indicator will sum the light
measurements for 24 hours to compute the Daily
Light Integral (DLI).
4. Read the Daily Light Integral (DLI)
After 24 hours the Daylight Indicator will blink every
second for the next hour to show the DLI value. Use
the numbers to the left of the LEDs. If the display is
dark, press the button to wake it and see the value
for 10 seconds.
5. Repeat with any and all areas requiring light measurements
Choose other areas and repeat the process for maximum
benefit.
Important
The Daylight Indicator does have a sharp spikes so handle with care.
Do not store the Daylight Indicator upside-down.
Possible damage can occur from irrigation water that
gather in the screw holes, enter the unit,
and damage the circuit board.