Standard lightmeter with illuminated LCD for applications requiring measurements under 3 lux

 "ON" and "HOLD" button - Click to display reading. Hold to "freeze" display. Auto power off.

Sliding Coverplate - Provides access to 9V battery and to the switch for selecting the measuring units (fc or lux).

Calibration seal is affixed to every cal-LIGHT lightmeter after calibration to assure authenticity and prevent unauthorized alterations.

 Features:

• NIST traceable calibration certificate
• Silicon photodiode sensor
• Autorange
• Auto power off
• User selectable units
• Ergonomic design  
• Cosine correction
• Photopic correction
• Carrying case
• Built-in, hands free stand (cal-LIGHT 400 and 400L only)

 Cooke cal-LIGHT 400L Calibrated Precision Lightmeters come complete with instructions, battery, carrying case, and calibration certificate.