The Extech Model LT505 LUX/FC Light Meter is a light meter from Extech that can measure the light intensity of fluorescent, metal halide, high-pressure sodium and incandescent light sources in lux and foot-candles.
The Extech LT505 is a compact light meter designed to measure illuminance in lux or foot-candles from various light sources, including fluorescent, metal halide, high-pressure sodium, and incandescent lamps. The device features a cosine-corrected light sensor, auto-ranging, data hold, and maximum/minimum/average recording capabilities. It is fully tested and calibrated upon shipment to ensure reliable service.
| Display | 9999 count LCD |
|---|---|
| Sampling rate | 2.5 times per second |
| Light sensor | Silicone photodiode with cosine correction filter |
| Measurement Units | LUX and FC (Foot candles) |
| Lighting source types | Fluorescent, metal halide, high-pressure sodium, and incandescent |
| Power | 2 x 1.5V AAA batteries |
| Automatic power off | After approx. 12 minutes of inactivity |
| Operating Temp/Humidity | 5°C to 40°C (40°F to 104°F); < 80%RH |
| Max Operating Altitude | 2000 meters (7000ft) maximum |
| Max Dimensions/Weight | 133 x 48 x 23 mm (5.3 x 1.9 x 0.9") /250g (8.8oz) |
The LT505 measures light from fluorescent, metal halide, high-pressure sodium, and incandescent sources.
Press the LUX-FC button to toggle the units between Lux and Foot-candles.
The meter automatically shuts off after approximately 12 minutes of inactivity.
The meter requires two (2) 1.5V AAA batteries.