Portable Digital Photometer

Item No: LIGHTMETER

Product Description

Portable Digital Photometer

  • Accurate digital display
  • Reads lux and Candela M²
  • Tough construction for rough handling
  • For scientific and laboratory needs
  • Simple to operate
  • LED display is visible in very dim light or in direct sunlight
These photometers are small and their sturdy design assures readiness for taking varied light measurements. Used by architects, designers, scientists, and industrial engineers, these units rapidly compare ambient illumination to video screen brightness to determine the suitability of the visual environment. They are also used to measure vehicle headlamps on the assembly line, survey stage lighting or measure a light source or reflecting source. Two models are available for most survey measurements and comparative or receptive light readings and have an approximate match to the (CIE) standard eye response.

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Just press the "Measure Button" to get continuous readings; release it, and it freezes the last reading for convenient reference. The "Range Button" adjusts the measurement display for the resolution desired. Approximate size is 4 x 2.8 x 1.2 inches and weighs 4 oz.

Spectral sensitivity of the light sensors closely match the C.I.E. photopic response for PhotoMeter LX. This is achieved through the use of a stable silicon photo-diode and three separate optical filters for accurate wavelength response.

EXTRA PRECISE LABORATORY PHOTOMETER LX

PhotoMeter "LX" is a precision meter required for scientific and laboratory work. This models utilizes filtered sensors with spectral response tightly calibrated to the C.I.E. Photopic response. The illuminance receptors closely follow the Cosine Law: Relative Sensitivity versus Angle of Illuminance. This "X" version can be adapted and calibrated to the Flexible (12") Fiber Optic Probe PM-12, or Rotating Illuminance Receptor PM-11, or Rigid (1") Fiber Optic Probe PM-10.

ECONOMICAL SURVEY PHOTOMETER L

PhotoMeter is built in an "L" version for metric units of lux. This model is suitable for most survey measurements and comparative or repetitive light readings. The L model has an approximate match to the C.I.E. (standard eye) color response. Measurements of luminance are possible with the optional Luminance Receptor PM13. PhotoMeter model L in nits (candela/m2).

Accessories:
 lightmeter
Note- All optional accessories must be calibrated to individual PhotoMeters. We recommend ordering accessories at the same time that the meters are ordered. Otherwise, it will be necessary to return the meters to the factory for calibration.

All prices FOB NY

Specifications and additional product information
  PhotoMeter LX PhotoMeter L
Model No. PMLX PML
Illuminance
(lux)
0.1-999,000 0.1-999,000
Luminance
(cd/m2)
0.1-999,000 See note 2**
Accuracy
Electrical
1% plus
2 digits
1% plus
2 digits
Accuracy
Spectral
7% @ 2800°K -
Sensor Silicon with
photometric filter
Silicon with
infrared filter
Batteries Commonly available camera button cells: A76, MS76, 10L14, 357, or equiv.
Approx. size 4 x 2.8 x 1.2 inches (10 x 7 x 3 cm)
Weight 4 oz. (120g)
**Note 2 - Luminance measurements with PhotoMeter L are possible with optional Luminance Receptor PM-13. Must be calibrated to individual PhotoMeter.
PMLX
    
$589.00
Quantity
PML
    
$303.00
Quantity
PM10
    
$118.00
Quantity
PM11
    
$118.00
Quantity
PM12
    
$422.00
Quantity
PM13
    
$39.00
Quantity
PM-NIST
    
$145.00
Quantity