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Light Meter


Price starts at $324.99

Product Code : 407026-NIST

Manufacturer : Extech

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Download or View this product's / series details and specifications Specifications (PDF)


  • % displays differential from reference point
  • “ZERO” Re-Calibration
  • Enhance accuracy by selecting lighting type Tungsten/Daylight, Fluorescent, Sodium, Mercury)
  • Data Hold, Min/Max/Avg readings
  • Built-in RS-232 PC serial interface


This light meter offers selectable lighting types, data record/recall, relative display mode, and PC interface. This professional meter, with proper care, will provide years of safe reliable service.

General Specifications
Circuit Custom one-chip LSI microprocessor circuit
Display 3-1/2 digit (2000 count) LCD display with contrast adjustment
Measurement ranges LUX: 0 to 50,000 LUX (3 range); Fc: 0 to 5000 Fc (3 range); Relative mode: 0 to 1999%
Data Hold Freezes displayed reading
Lighting Types Sodium, Daylight/Tungsten, Fluorescent and Mercury
Sensor Structure Cosine/color corrected photo-diode meets C.I.E.
Memory Store/Recall Records/Recalls Max/Min/Avg readings
Sample rate 0.4 seconds (approx.) per reading
Zero Adjust Push-button procedure
Auto Power Off After approx. 10 minutes
Data Output RS-232 PC serial interface (optional software/cable PN 407001)
Operating conditions 32 °F to 122 °F (0 °C to 50 °C); <80% RH
Power Supply 9V battery
Power consumption Approx. 5 mA DC. (approx. 200 hr battery life)
Weight 0.71 lbs. (320 g)
Dimensions Instrument 7.1 x 2.8 x1.3" (180 x 72 x 32 mm)
Sensor 3.3 x 2.2 x 0.7" (85 x 55 x 17.5 mm)
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