Key facts
- Brand
- EXTECH
- Model
- LT300
- Category
- Other
- Industry
- Electronics
- Documents
- 2
- Languages
- EN
- Last added
- 2026-10-03
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Extech LT300 Light Meter Datasheet
Datasheet 1 pages · 663 KB · EN
The Extech LT300 is a digital and analog light meter that measures illumination in foot‑candles or lux, offering a wide range up to 20,000 Fc/Lux with 0.01 resolution. It includes a precision photodiode, color‑correction filter, and cosine‑corrected measurements.
Key functions include relative mode, peak mode, MIN/MAX storage, data hold, and a large LCD with analog bargraph and backlight. The unit comes with a 9 V battery, a remote light sensor on a 12‑inch coiled cable (extendable to 24 in), protective holster, and dimensions 150 × 75 × 40 mm, weight 200 g.
Extech LT300 specifications
| Measurement range | 20,000 Foot‑Candles or Lux |
|---|---|
| Resolution | 0.01 Fc/Lux |
| Accuracy | ±(5% reading + 0.5%FS) |
| Dimensions | 150 × 75 × 40 mm |
| Weight | 200 g |
| Power source | 9 V battery |
| Remote sensor cable length | 12 in (305 mm) expandable to 24 in (609 mm) |
| Display | Large LCD with analog bargraph and backlight |
All Extech LT300 documents by type
Datasheet 1
Ratings, dimensions and ordering codes, for selection and design work.
Other documents 1
Questions answered in these manuals
What measurement units does the LT300 support?
It measures light in foot‑candles or lux.
How does the LT300 capture the highest illumination reading?
By using the peak mode, which captures the highest reading.