Can you give me a calibration certificate with this unit?

LT300 version with NIST costs $289.00 in our valuetesters store. There is a two week lead time, as each unit needs to be calibrated manually.

What is the lowest fc reading this unit will take? Will it measure as low as 0.02 fc?

We have used this device on almost a daily basis since we examine potential customer sites for our lighting products. We found that the greatest consistent resolution you can get .05 increments reliably as compared to other like devices in the same setting. A good product in our opinion.

what is the conversion formula for lux to PPFD for this unit?

Multiply the Lux by the conversion factor to get PPFD. For example, full sunlight is 108,000 Lux or 2000 µmol m-2 s-1 (108,000 ∗ 0.0185).

I can post the calibration certificate?

I think the question needs to be directed to Extech. I'd be interested in their answer.

Extech Lt300 Light Meter | Desertcart Colombia

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

COP 2489410

Duties & taxes included

In stock

Sold byAmazon ColombiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Colombia.

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Description

💡 Illuminate your workspace with precision and confidence — don’t get left in the dark!

SMART DATA CONTROL - Min/Max, data hold, and zero adjustment empower confident, on-the-spot decisions.
PORTABLE POWERHOUSE - Lightweight, durable design with protective sensor cover for reliable field use anytime.
EFFORTLESS VISIBILITY - Backlit LCD and analog bar graph ensure clear readings even in dim or complex lighting.
UNIVERSAL SENSOR TECH - Cosine and color-corrected sensor adapts flawlessly to daylight, LED, fluorescent, and industrial lighting.
PRECISION LIGHTING INSIGHTS - Measure up to 40,000 lux with unmatched accuracy for safer, smarter environments.

The Extech LT300 Light Meter is a professional-grade handheld device delivering precise light measurements up to 40,000 lux. Featuring a large backlit LCD with analog bar graph, advanced Min/Max and data hold functions, and a cosine/color-corrected sensor, it ensures reliable readings across all lighting types. Its lightweight, durable design with a protective sensor cover makes it ideal for on-the-go inspections in workplaces, studios, and labs, helping professionals maintain optimal lighting conditions and comply with safety standards.

Reviews

M**.

17.03.2017

D**S

30.10.2015

K**R

3.06.2019

J**T

7.03.2016

Z**T

18.08.2017

F**A

28.10.2025

C**R

18.09.2019

F**O

5.01.2025

F**O

29.08.2023

A**N

13.09.2017

L**V

10.12.2020

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Perfect platform for hard-to-find items. Delivery was prompt.

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Customer service was outstanding when I had questions about the product.

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Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

COP 2489410

Duties & taxes included

In stock

Sold byAmazon ColombiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Colombia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ravi S.

I loved the variety of products available. Will definitely shop again.

2 months ago

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Great experience from order to delivery. Highly recommended!

1 week ago

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Extech LT300 Light Meter

Description

Specifications

Reviews

Common Questions