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Extech Instruments SDL400 Light Meter Datalogger

The Extech SDL400 Light Meter and Datalogger offers a versatile solution for measuring a wide range of light conditions up to 10,000Fc or 100kLux. It features cosine and color-corrected measurements, data logging with date/time stamps on an SD card in Excel format for easy PC transfer, and adjustable sampling rates from 1 to 3600 seconds. Equipped with Type K/J thermocouple inputs, a large backlit LCD, MIN/MAX recording, and data hold functions. Supplied with batteries, SD card, carrying case, light sensor, and various probes for high-temperature measurements, it is ideal for industrial and laboratory light and temperature assessments.

Authorized Distributors
Source:Newark
Part No:SDL400
Stock:6
Inv Date:06-21-2026
Price: Unit price: $451.94
Buy/RFQ:
Source:DigiKey
Part No:SDL400
Stock:0
Inv Date:06-21-2026
Price: Unit price: $379
Buy/RFQ:
Part No:SDL400
Stock:4
Inv Date:06-22-2026
Price: Unit price: $379.03
Buy/RFQ:
Part No:SDL400
Stock:0
Inv Date:06-21-2026
Price: Unit price: $379
Buy/RFQ:
Part No:SDL400
Stock:3
Inv Date:06-21-2026
Price: Unit price: $379
Buy/RFQ:
Part No:SDL400
Stock:0
Inv Date:06-21-2026
Price: Unit price: $379
Buy/RFQ:
Part No:SDL400
Stock:5
Inv Date:06-17-2026
Price: N/A
Buy/RFQ:
Part No:SDL400
Stock:0
Inv Date:06-21-2026
Price: Unit price: $459
Buy/RFQ:
Part No:SDL400
Stock:0
Inv Date:06-21-2026
Price: Unit price: $379
Buy/RFQ:
Authorized Distributors
Part No:SDL400
Stock:0
Inv Date:06-21-2026
Price: Unit price: $379
Buy/RFQ:
Part No:SDL400
Stock:1
Inv Date:06-21-2026
Price: N/A
Buy/RFQ:

Extech Instruments SDL400 Light Meter Datalogger Specifications:

  • Light Range: 200, 2000, 10KF Fc; 200, 2000, 10KF Lux
  • Lux Range: 200, 2000, 100k Lux
  • Temperature Range: -148 to 2372°F (-100 to 1300°C) for Type K; -148 to 2192°F (-100 to 1200°C) for Type J
  • Resolution: 0.1 Fc/Lux, 0.1°C/°F
  • Memory: 20 million data records on 2G SD card, 99 manual readings
  • Dimensions: 7.2 x 2.9 x 1.9 inches (182 x 73 x 47.5 mm)
  • Weight: 16.2 ounces (475 grams)
  • Accuracy: ±28% reading, ±0.4% + 1.8°F/1°C for temperature
  • Features: Data hold, auto power off, cosine & color correction, zero offset adjustment
  • Probes: Type J bead wire, Type K bead wire, Type K clamp, temperature measurement up to 1300°C
  • Supplied with: batteries, SD card, carrying case, light sensor with 45-inch cable, protective cover

Buy the Extech SDL400 – Reliable Light Measurement and Data Logging for Industrial Applications

Enhance your measurement capabilities with the Extech SDL400 light meter and datalogger, designed for accurate light and temperature assessments. Its wide measurement range, SD card data logging, and thermocouple inputs make it ideal for industrial, laboratory, and environmental applications. The large backlit display provides clear readings, while the ability to record up to 20 million data points ensures comprehensive data collection. Includes various probes for high-temperature measurements, durable carrying case, and user-friendly features, all ready for online purchase to support your projects' accuracy and efficiency.

Order your Extech SDL400 Series light meter and datalogger today and ensure precise light and temperature measurements with reliable data logging features.

Frequently Asked Questions

Where can I buy Extech Instruments SDL400?

You can click on the BUY or RFQ button to purchase SDL400 from an authorized Extech Instruments distributor.

How do I troubleshoot issues or seek technical support for part SDL400?

You can download the SDL400 datasheet or visit the Extech Instruments website for support.

Who is the manufacturer of SDL400?

Extech Instruments

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