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Extech LED Light Meter with NIST - LT40-NIST

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Extech LED Light Meter with NIST - LT40-NIST


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Extech LED Light Meter with NIST - LT40-NIST

Extech LED Light Meter with NIST - LT40-NIST



LT40 LED Light Meter with NIST by Extech

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. This meter can also measure light levels for Fluorescent, halogen, and incandescent lights.


  • 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
  • Measures white LED lights
  • Complete with built-in sensor with protective cover, 2 AAA batteries, and pouch
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)

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