Monitors indoor light changes with an internal sensor and records light on/off conditions; ideal for building energy audits and light usage analysis.

Features:

• Auto-calibration of ON and OFF thresholds ensures reliable readings
• User-adjustable sensitivity control for low/high light level conditions
• Highly recommended light pipe accessory eliminates effects of ambient light to ensure the most accurate readings
• Compatible with HOBOware and HOBOware Pro software for logger setup and graphing & analysis