---
product_id: 283495370
title: "Extech LT40 LED Light Meter"
brand: "extech"
price: "VT54614"
currency: VUV
in_stock: true
url: https://www.desertcart.vu/products/283495370-extech-lt40-led-light-meter
store_origin: VU
region: Vanuatu
---

# LCD shows real-time, min/max & alarms USB interface for seamless data transfer Customizable sampling rates from 1s to 24h Extech LT40 LED Light Meter

**Brand:** extech
**Price:** VT54614
**Availability:** ✅ In Stock

## Summary

> 💡 Light up your workspace with precision and style!

## Quick Answers

- **What is this?** Extech LT40 LED Light Meter by extech
- **How much does it cost?** VT54614 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/283495370-extech-lt40-led-light-meter)

## Best For

- extech enthusiasts

## Why This Product

- Trusted extech brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Trusted Accuracy:** High-precision measurements with ±0.5% accuracy ensure your environment is perfectly lit.
- • **Tailored Sampling:** Choose your data capture pace from every second to once a day—perfect for dynamic or long-term monitoring.
- • **Ready Out of the Box:** Includes batteries and Windows-compatible software for immediate analysis—no delays, just results.
- • **Clear Visual Feedback:** Digital LCD displays current readings plus min/max and alarm status—never miss a critical light change.
- • **Plug & Play Precision:** USB connectivity makes setup and data export effortless—stay ahead with instant insights.

## Overview

The Extech LT40 LED Light Meter is a compact, battery-powered device delivering highly accurate light measurements (±0.5%) with a user-friendly digital LCD. Featuring USB connectivity and customizable sampling rates from 1 second to 24 hours, it includes Windows-compatible software for seamless data analysis. Lightweight and ready to use with included batteries, it’s the essential tool for professionals demanding precise lighting insights.

## Description

LT40 LED Light Meter

## Features

- USB interface for easy setup and data download
- Selectable data sampling rates from 1 second to 24 hours
- LCD displays current readings, min/max and alarm status
- Includes Windows 2000, XP and Vista compatible analysis software

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Extech |
| Part number | LT40 |
| Item Weight | 140 g |
| Product Dimensions | 13.46 x 4.83 x 0.51 cm; 140 g |
| Batteries | 2 AAA batteries required. (included) |
| Item model number | LT40 |
| Color | White |
| Style | LT40 |
| Material | ABS |
| Pattern | Thermometer |
| Power source type | Battery Powered |
| Item Package Quantity | 1 |
| Number Of Pieces | 1 |
| Measurement Accuracy | +/-0.5% |
| Display Style | Digital |
| Specification met | CE |
| Special Features | High Accuracy |
| Included components | Extech LT40 LED Light Meter |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Alkaline |

## Product Details

- **Brand:** Extech
- **Special features:** High Accuracy
- **Colour:** White
- **Age range (description):** Adult
- **Included components:** Extech LT40 LED Light Meter

## Images

![Extech LT40 LED Light Meter - Image 1](https://m.media-amazon.com/images/I/81stFVFgFmL.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: Does this item come with calibration certificate?**
A: 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.

**Q: Does this product come with a warranty?**
A: 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

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

**Q: Does this perform well in very bright conditions ( very sunny conditions) and in now light conditions?**
A: 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

## Frequently Bought Together

- Extech LT40 LED Light Meter
- Extech LT300 Light Meter
- Leica Geosystems DISTO D2 New 330ft Laser Distance Measure with Bluetooth 4.0, Black/Red, 1.7 x 1 x 4.6 inches

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-02-21*