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Ambient Light Sensor

The ambient light sensor used in Logmore Two and Three data loggers is the LTR-308ALS-01.

Note: The sensor does not measure lux or other absolute brightness units. Light sensor is meant for comparable and approximate measurements for applications such as package/container opening monitor or digital seal.

Sensor specifications

Absolute accuracy

±10% (relative value)

Measurement range

0 (Completely dark) ... 32 767 (Direct sunlight)

Resolution

Configurable.

Default is variable:

Value | Decoded | Meaning

0 | 0 | Totally dark 1 | 1 ... 9 | Very dark

2 | 10 ... 99 | Dark, human eye can see shapes 3 | 100 ... 499 | Dim, human eye can see shapes and colors 4 | 500 ... 5000 | Normal indoor lightning 5 | 5000 ... 14999 | Normal indoor lightning, bright 6 | 15000 ... 32767 | Very bright, sunlight

Light sensor location

image

Sensors: