Extech HD400
Heavy Duty Light Meter

Wide range to 40,000Fc or 400,000 Lux
Cosine and color corrected measurements
Utilizes precision silicon photo diode and spectral
response filter
Peak mode (10µS) captures highest reading
Relative mode indicates change in light levels
Min/Max and Data Hold
Large backlit LCD display with 40-segment bar graph
Heavy Duty rugged double molded housing
Built-in USB port
Includes light sensor with 3ft (1m) cable and protective cover, Windows® compatible software with USB cable, hard carrying case, and 9V battery

Extech HD400 shown

Ordering Information
Model	Description	Buy Online	Price
HD400	Extech HD400 Heavy Duty Light Meter		$199.99
HD400NIST	Extech HD400-NIST Heavy Duty Light Meter with NIST Certificate		$274.99
Included Accessories
	(1) Light sensor with 3ft (1m) cable (1) Protective cover (1) Windows® compatible software (1) USB Cable (1) 9V batteries (1) Hard carrying case	Included

*NOTE: Items ordered with optional NIST calibration will require
approximately 10 days to complete the certification.