Technical Details:

• Display: 18mm( 0.7") LCD (Liquid Crystal Display)

• Ranges: 1-100,000 Lux.(3 Ranges) 0 ~ 1,999 Lux, 2,000 ~ 19,999 Lux, 20,000 ~ 1,00,000 Lux.

• Over-input: Indication of "1"

• Sampling Time: 0.4second

• Operating Temperature: 0°C to 50°C (32°F ~ 122°F)

• Operating Humidity: less than 80%R.H • Consumption current : Approx. 2mA

• Dimension: 130 x 72 x 30mm • Weight: 170g (including battery)

• Power Supply: DC9V battery .

• Standard Accessories: Light Sensor, Instruction manual, Battery & Carrying case. 

ELECTRICAL SPECIFICATIONS Range (Lux) Resolution (Lux) Accuracy (23 ± 5°C) 0~1,999 2,000~19,999 20,000~100,000 1 10 100 ±(4%rdg + 2dgts) ±(4%rdg + 2dgts) ±(5%rdg + 2dgts) NOTE: Accuracy tested by a standard parrallel light tungsten lamp of 2854 K temperature 

FEATURES :

Precise & easy readout.

High accuracy in measuring.

LSI - circuit use provides high reliability & durability.

Permits a wide range of light measurements.

Low Battery Indication.

Auto zero adjust.

Compact, light-weight, & excellent operation.

LCD display can clearly readout even in High Ambient Light

LCD display provides low power consumption.

Separate LIGHT SENSOR allows the user to take measurements at an optimum position. 

How Light Meters Work Most meters consist of a body, a photo cell and a readout. The light that falls on the photo cell has energy. This energy is transferred by the photo cell into electric current; the amount of current generated depends on the amount of light striking the cell. The meter then reads the electrical current and calculates the appropriate value of either Lux or Footcandles. A key thing to remember about light is that it is usually made up of many different types (colors) of light at different wavelengths. The reading, therefore, is a result of the combined effects of all the wavelengths. A standard color can be referred to as color temperature and is expressed in degrees Kelvin. The standard color temperature for calibration of most light meters is 2856 degrees Kelvin which is more yellow than pure white. Different types of light bulbs burn at different color temperatures. “KUSAM-MECO” meter readings will, therefore, vary with different light sources of the same intensity. This is why some lights seem “harsher” than others. See the chart below for suggested lighting levels for various applications.

Abbreviations : FC = Footcandle, Lux = Lux, Lumen = Lumen

Since : 1 FC = 1 Lumen / square foot, and 1 Lux = 1 Lumen / square meter

And; 1 square foot = 0.0929 square meters

Then; 1 Lux = 0.0929 Fc, and 1 FC = 10.76 Lux.

Light can be quantified in many ways, i.e., Lux, Lumens, Footcandles, Candle Power, Candelas, and so on. The two most popular scales are Lux, which is the European measure, and Footcandles which is the U.S. Scale.