Actiwatch-L monitors activity and light levels simultaneously. Light intensity range measured is from 0 to 32,000 lux.

Actiwatch-L

• Integral light sensor
• 64 Kbyte memory
• Records for 22 days at a 1 minute epoch
• Waterproof
  

Software Options

• Activity Analysis
• Activity and Sleep Analysis
  

Applications

• Psychiatric research and medicine
• Depression
• Seasonal Affective Disorder
• Alzheimer's Disease