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.

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Description

🌟 Light Up Your Measurements with Precision!

PEAK PERFORMANCE MODE - Capture the highest light levels with ease using relative and peak modes.
PRECISION YOU CAN TRUST - Equipped with a high-quality photo diode and color correction filter for reliable data.
ILLUMINATE YOUR INSIGHTS - Experience accurate readings even in low light with the backlit display.
STAY INFORMED AT A GLANCE - The large LCD with analog bargraph provides clear visibility of your measurements.
FLEXIBILITY AT YOUR FINGERTIPS - Remote light sensor extends up to 24" for versatile usage.

The Extech LT300 Light Meter is a professional-grade tool designed for accurate light measurement in various environments. Featuring a backlit display for low-light conditions, a large LCD with an analog bargraph, and a remote sensor that extends up to 24 inches, this device ensures you never miss a detail. With advanced features like a precision photo diode and multiple measurement modes, it's the perfect companion for professionals seeking reliable data.

Specifications

ASIN	B000NI69ZY
Batteries	1 Product Specific batteries required. (included)
Best Sellers Rank	#13 in Photographic Light Meters
Date First Available	February 14, 2007
Is Discontinued By Manufacturer	No
Item Weight	7 ounces
Item model number	LT300
Manufacturer	Extech
Product Dimensions	3 x 1.57 x 5.9 inches

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