产品描述：
Model: LM-120 照度计
Light Meter with Auto Ranging
The Amprobe LM-120 light meter measures the visible light from fluorescent, metal halide, high-pressure sodium or incandescent sources. It is a portable, easy-to-use digital light meter designed for simple one-hand operation reading in Lumen (lux) or footcandle (fc) units. The LM-120 measures a wide range of light up to 20,000 fc or 200,000 lux with an accurate, high resolution of 0.01 fc/lux. This unit is Autoranging plus manual ranging with ability to Zero out the reading before taking a measurement.
Use the LM-120 light meter to measure the illumination level in the interior and to switch off or reduce or increase the output level of lighting fixtures. Reduce the energy burden of the building by significantly increasing the efficiency of its lighting system.
One lux is the illumination from a one candela lamp perpendicular to a surface one meter squared at a distance of one meter. One fc is the illumination from a one candela lamp perpendicular to a surface one foot squared at a distance of one foot. 1 foot-candle = 10.764 Lux and 1 lux = 0.09290 footcandles.
Measure in Lux or Footcandles, front panel switchable
Measuring Range to 200,000 Lux or 20,000 Foot candles
Silicon photodiode sensor and filter
Data Hold to freeze reading on the digital display
MIN / MAX ability to show high and low readings
Autoranging plus Manual Range
Zero function to null display before a reading
Auto Power Off to save battery life
Includes protective sensor cap
Large, 3-1/2 digit display
技术参数：
Model: LM-120 照度计
Light Meter with Auto Ranging
The Amprobe LM-120 light meter measures the visible light from fluorescent, metal halide, high-pressure sodium or incandescent sources. It is a portable, easy-to-use digital light meter designed for simple one-hand operation reading in Lumen (lux) or footcandle (fc) units. The LM-120 measures a wide range of light up to 20,000 fc or 200,000 lux with an accurate, high resolution of 0.01 fc/lux. This unit is Autoranging plus manual ranging with ability to Zero out the reading before taking a measurement.
Use the LM-120 light meter to measure the illumination level in the interior and to switch off or reduce or increase the output level of lighting fixtures. Reduce the energy burden of the building by significantly increasing the efficiency of its lighting system.
One lux is the illumination from a one candela lamp perpendicular to a surface one meter squared at a distance of one meter. One fc is the illumination from a one candela lamp perpendicular to a surface one foot squared at a distance of one foot. 1 foot-candle = 10.764 Lux and 1 lux = 0.09290 footcandles.
Measure in Lux or Footcandles, front panel switchable
Measuring Range to 200,000 Lux or 20,000 Foot candles
Silicon photodiode sensor and filter
Data Hold to freeze reading on the digital display
MIN / MAX ability to show high and low readings
Autoranging plus Manual Range
Zero function to null display before a reading
Auto Power Off to save battery life
Includes protective sensor cap
Large, 3-1/2 digit display
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