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Martindale LM82 Light Meter


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The Martindale LM82 is a simple-to-use light meter which will help you to identify the level of light given off by traditional light sources.

An all-in-one light meter, the LM82's sensor is built directly into the top of the instrument and can't be removed. To measure light, hold the sensor as specified in the user manual and the LM82 will calculate the light level in either lux or footcandles and display the result on the LCD screen.

The LM82 can measure light levels to either 200,000 (2k) lux or up to 18580 FC. A variety of additional functions are included such as a data hold function which will freeze the current value on the screen and MIN/MAX/Average functions which can be used to calculate minimum, maximum or average values over a period of time.

Martindale LM82 Light Meter Key Features

  • Measurements of light intensity to 200k lux or 18580 footcandles
  • CIE photopic spectral response
  • Data hold function temporarily freezes value on screen
  • MIN, MAX and MAX/MIN functions
  • Average function
  • Auto power off when left idle
  • Low battery indication
  • LCD display with backlight
  • Pocket-sized design

What's Included?

  • Martindale LM82 Light Meter
  • 2 x 1.5V AAA Batteries
  • Detachable Carrying Strap
  • Instructions
Part CodeMARLM82

Martindale LM82 Technical Specifications

Temperature Coefficient 23°C ± 5°C <70% RH for 1 year
Range 0 to 200000 lux
0 to 18580 footcandles
Resolution 1 lux (0 to 19999 lux)
10 lux (20k to 200k lux)
1 fc (0 to 18580 fc)
Spectral Response CIE photopic
Relative Spectral Response ƒ < 8%
Acceptance Angle ƒ <2% cosine corrected (150°)
Totaly Accuracy For Standard Illuminant A (2856K) ±(3% rdg + 10 digits)
General Specifications  
Display LCD
Measurement Rate Once per second
Power 2 x 1.5V AAA alkaline batteries (IEC LR03, NEDA 24A)
Continuous Operating Time 180 hours typical
Auto Power Off After approx 10 minutes
Low Battery Indication Symbol display when battery voltage drops below operating levels
Dimensions 132.9 (L) x 50.9 (W) x 24.7 (D) mm
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