Question 1

Does this item come with calibration certificate?

Accepted Answer

Hello Antonio - there isn't a calibration certificate. Based on the various tests I've done the results make sense  and the machine is highly responsive. This isn't what I would regard as a precision instrument, but for my purposes g it worked fine.

Question 2

Does this product come with a warranty?

Accepted Answer

Hello, Thanks for your question, yes, the meter has a 2-year warranty, If you have any questions, please feel free to contact our tech support line at 866-477-3687 option 3

Question 3

With the lt45 what light source setting should be used with fluorescent and sodium lights as the manual only lists incandescent and led's?...

Accepted Answer

Hi, thanks for your question, there are 10 light source selections (L0 – L9) each having a unique calibration correction factor
(multiplier). See the Light Source list below. The multipliers for locations L0 through L6 are fixed
for the lighting types listed. Locations L7 through L9 are extra locations that the user can
customize (with a multiplier from 0.001 to 1.999).
L0: Standard incandescent light source
L1: LED white daylight
L2: LED AMBER (YELLOW) light
L3: LED GREEN light
L4: LED RED light
L5: LED BLUE light
L6: Not used
L7~L9: Programmable User Custom Locations (preset to 1.00) if you have any questions, feel free to contact our technical support line at 866-477-3687 option 3

Question 4

Does this perform well in very bright conditions ( very sunny conditions) and in now light conditions?

Accepted Answer

I feel that the Extech LT40 LED does respond fairly well in very bright conditions. As I see it, the meter is designed to read environmental conditions, such as light coming into a building or space, or even on the exterior. If you need to read just the solar conditions (visible light) in an unobstructed open space or area there are better, but often higher priced, meters for that purpose. Nick M

ASIN	B00FF3X34M
ASIN	B00FF3X34M
Batteries	2 AAA batteries required. (included)
Batteries	2 AAA batteries required. (included)
Batteries Included?	Yes
Batteries Required?	Yes
Battery Cell Type	Alkaline
Color	White
Country of origin	Taiwan
Customer Reviews	4.5 4.5 out of 5 stars (169)
Customer reviews	4.5 4.5 out of 5 stars (169)
Date First Available	1 January 2024
Date First Available	1 January 2024
Display Style	Digital
Included components	Extech LT40 LED Light Meter
Is Discontinued By Manufacturer	No
Item Package Quantity	1
Item Weight	140 g
Item model number	LT40
Item model number	LT40
Manufacturer	Extech
Manufacturer	Extech
Material	ABS
Measurement Accuracy	+/-0.5%
Number Of Pieces	1
Part number	LT40
Pattern	Thermometer
Power source type	Battery Powered
Product Dimensions	13.46 x 4.83 x 0.51 cm; 140 g
Product Dimensions	13.46 x 4.83 x 0.51 cm; 140 g
Special Features	High Accuracy
Specification met	CE
Style	LT40

LT40 LED Light Meter

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Details

Description

Specifications

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