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Sper Light Meter Lux

Light Meter: Lux Scale, 840006

Applications include light levels in work places, labs and schools, environmental studies, biology, optics, reflectance and translucence properties of materials. Compact and portable, can be used to monitor light levels anywhere, or to check the lux level of a particular light source. Use to check compliance with ANSI/NFPA 101, (standards for emergency and exit lighting). Sper Scientific light meters are cosine and color corrected and have a range of 0.1 to 20,000 lux. Quick and accurate response. The selenium cell photosensor is hermetically sealed to ensure long term stability. Large easily legible 4 digit LCD. Also has a data hold switch to freeze results and a recorder output. Comes with carrying case, photo-sensor cover, instructions and a 9-Volt battery.

Dimensions (Main Unit) 4-1/2 x 2-1/2 x 7/8"
Dimensions (Photosensor) 5 x 2-1/2 x 1-1/2"
Dimensions (Lead) 5' Long
Weight (Main Unit) 5 oz.
Weight (Photo-sensor) 3 oz.
Display 3-1/2 digit LCD - Maximum reading 1999
Overload Display "1" displayed on left
Power Supply One 9V battery, lasts approx. 200 hours
Range 0, 200, 2,000, 20,000 Lux
Accuracy 200 Lux scale, ?% reading, ?.5% FS
2,000 Lux scale, ?% reading, ?.5% FS
20,000 Lux scale, ?% reading, ?% FS
Temperature Characteristics ?.1%/C (i.e., for 1C rise or drop in the temperature the readout will be affected by ?.1%)
Repeatability ?%
Incident Angle Characteristics 30 degrees: ?%
60 degrees: ?%
90 degrees: ?5%
Photosensor Selenium cell, hermetically sealed
Recorder Output 20mV full scale


Accessories:  click on item number for additional information.

With NIST traceable certificate of calibration:



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