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Extech HD400 Heavy Duty Digital Light Meter with Environmental Datalogging and USB Port

UsedExtechLightingUnited States

€222.97excl. VAT

In stock

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make
Extech Instruments
hertz
Does Not Apply
voltage
Does Not Apply
warranty
30-Day Warranty On Part
shipping_type
FedEx Ground
All 11 specifications
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Specifications 11

Brands
Extech
New/Used
Used
make
Extech Instruments
hertz
Does Not Apply
weight
3.0 Lb
voltage
Does Not Apply
warranty
30-Day Warranty On Part
dimensions
10.0in x 12.0in x 3.0in
shipping_type
FedEx Ground
item_condition
Good
manufacturing_date
Does Not Apply

Product description

Digital light meter measuring up to 4,000 Fc/40,000 Lux with backlit LCD, data logging, and USB connectivity.

The Extech HD400 is a heavy-duty digital light meter designed for precise illumination measurement with the following features:

  • Measurement Range: Up to 4,000 foot-candles (Fc) or 40,000 Lux
  • Display: Large backlit LCD with a 40-segment bar graph for real-time intensity visualization
  • Data Storage: Automatic storage capacity of up to 16,000 readings; manual recall of 99 readings
  • Connectivity: Built-in USB port enables data transfer for further analysis
  • Weight: 1.63 kg (3.6 lbs)
  • Dimensions (Shipping): 30.48 cm x 36.58 cm x 9.14 cm (12.0 in x 14.4 in x 3.6 in)
  • Condition: Good - fully operational with minor cosmetic wear
  • Applications: Suited for environmental monitoring, horticulture, photography, photobiology research, and other laboratory light measurement needs
  • Compliance: Harmonized code 903180 for scientific measuring instruments

This US-made instrument provides robust performance and reliable data acquisition for scientific and industrial photometric measurement tasks.

Why Questpair exists

Lab equipment markets are fragmented. Buyers spend weeks calling distributors, comparing quotes, and verifying supplier reliability. Sellers struggle to reach global research labs.

We built Questpair to fix this. Every supplier on the platform is verified before listing. Every quote you receive comes from a real, vetted seller. AI prepares your case in minutes, then a real specialist takes over.

We're an independent team based in The Netherlands, working with research labs and procurement teams across Europe and worldwide.

Frequently asked questions

How long does laboratory equipment typically last?

With a service contract, ten to fifteen years is normal for most benchtop instruments. Detectors and pumps are the parts that wear first.

Can I get service for older equipment?

Yes. Every verified supplier states which service partners cover the instrument, and we list that alongside the offer.

Where can I buy parts?

Ask a scientist through the request button. Parts are often available even when the instrument itself is discontinued.

What is the typical lead time for refurbished equipment?

Two to six weeks, depending on refurbishment scope and whether calibration is included.

Does laboratory equipment ship internationally?

We ship to 38 countries. Crating and customs handling are quoted with the instrument.

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Last updated 19 October 2026