Extech SDL400 Light Meter/Datalogger

Extech SDL400 Light Meter/Datalogger


The Extech Light Meter/Datalogger records data on an SD card for easy transfer to a PC.


  • Wide range to 10,000Fc or 100kLux
  • Stores 99 readings manually and 20M readings via 2G SD card
  • Offset adjustment used for zero function to make relative measurements
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The Extech Light Meter/Datalogger has a wide range to 10,000Fc or 100kLux and cosine and color-corrected measurements. The meter utilizes precision silicon photo diode and spectral response filter. The datalogger date/time stamps and stores readings on an SD card for easy transfer to a PC. The offset adjustment is used for zero function to make relative measurements.


The datalogger stores up to 99 readings manually and 20M readings via the 2G SD card, and adjustable data sampling rates range from 1 to 3600 seconds. The type K/J thermocouple input is used for high temperature measurements. Additonal meter features include record/recall min and max readings, data hold, and automatic power off with disable function.

Notable Specifications:
  • Fc range: 200, 2000, 10kFc
  • Fc range resolution: 0.1Fc
  • Fc range basic accuracy: ±4%rdg
  • Lux range: 2000, 20k, 100kLux
  • Lux range resolution: 1Lux
  • Lux range basic accuracy: ±4%rdg
  • Type K temperature range: -148 to 2372°F (-100 to 1300°C)
  • Type K temperature resolution: 0.1°
  • Type K temperature basic accuracy: ±(0.4% + 1.8°F/1°C)
  • Type J temperature range: -148 to 2192°F (-100 to 1200°C)
  • Type J temperature resolution: 0.1°
  • Type J temperature basic resolution: ±(0.4% + 1.8°F/1°C)
  • Memory: 20M data records using 2G SD card
  • Dimensions: 7.2 x 2.9 x 1.9" (182 x 73 x 47.5mm)
  • Weight: 16.2oz (475g)
What's Included:
  • (1) Datalogger
  • (6) AA batteries
  • (1) SD card
  • (1) Hard carrying case
  • (1) Light sensor with protective cover
Image Part # Product Description Price Stock Order
Extech SDL400 Light Meter/Datalogger SDL400 Light meter/datalogger
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