PRODUCT DATASHEETPRODUCT DATASHEET
LT40 & LT45
LED Light Meters
Extech LED Light meters are used for monitoring
and optimizing environmental light levels in
buildings, schools, and offices. LED lighting
is being used more commonly, because they
are less expensive, more energy efficient
and brighter. Model LT40 measures the light
illuminance of white LED lights, while the LT45
measures both white and color LED lights.
Both meters can also measure light levels for
Fluorescent, halogen, and incandescent lights.
Features
• Measure LED and Standard Lighting in
Lux or Foot-Candle (Fc) units
• 4000 count display
• Min/Max Average
• Cosine and color corrected measurements
• Auto Power off
Model LT40 Functions
• Measures white LED lights
• Complete with built-in sensor with protective cover,
2 AAA batteries, and pouch
Model LT45 Functions
• Measures white, red, yellow, green, and blue LED lights
• Manually store/recall up to 99 readings
• Complete with light sensor with protective cover
and coiled cable expandable to 59" (1.5m), 9V battery,
and hard case
Specifications
Model LT40 Model LT45
Foot-candle (Fc) Range 99.99, 999.9, 9999, 40000 40, 400, 4000, 40000
Lux Range 999.9, 9999, 99990, 400000 400, 4000, 40000, 400000
LED Type white white, red, yellow, green, blue
Basic Accuracy ±3% ±3%
Dimensions 5.2x1.9x1" (133x48x23mm) 5.1x2.2x1.5" (130x55x38mm)
Weight 8.80z (250g) 8.8oz (250g)
Ordering
LT40 .................. LED Light Meter
LT45 .................. Color LED Light Meter
www.extech.com
Specifications subject to change without notice. Copyright © 2013-2014 FLIR Systems, Inc. All rights reserved including the right of reproduction in whole or in part in any form.
Rev. 12/6/16
Model LT40
Model LT45
