LT505-en-GB_V1.1 1/18
2
Introduction
Thank you for selecting the Extech Model LT505 LUX/FC Light Meter. The LT505 measures light
from fluorescent, metal halide, high-pressure sodium and incandescent sources in lux and foot-
candles. This device is shipped fully tested and calibrated and, with proper use, will provide years
of reliable service.
Features
Measure intensity of light (illuminance) in lux or foot-candles
Light sensor with cosine correction
Low battery indicator
Data hold
Auto-ranging
Auto Power OFF (APO)
Light weight, compact, design
Safety
Please read the entire User Manual before operating this device. Use the meter only as specified
and do not attempt to service or open the meter housing.
Do not use the meter in the presence of explosive gas or vapor
Do not expose the meter to extremes in temperature or to high humidity
Please dispose of batteries and meter responsibly and in accordance with all applicable
laws and regulations
Do not allow children to handle the meter or the protective cover
Meter and LCD Description
1.
Light Sensor (protective sensor cover not shown)
2.
LCD
3.
LUX-FC button
4.
CAL-ZERO button
5.
Power button
6.
Data Hold button
7.
MAX-MIN Record button
Note: Battery compartment and Tripod mount on rear of
meter
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