Light Meter (USB)

Product Code: HT-1309

Measures illuminance (Lux, footcandle) in the field, meeting CIE photopic spectral response and is fully cosine-corrected for the angular incidence of light.

The HT-1309 digital illuminance meter is a precision instrument and is compact, tough and easy to handle.

The light sensitive component is a very stable, long-life silicon photo diode and spectral response filter.

Supplied with Windows compatible software for transferring data to a computer, removable rubber protective holster (including tilt stand), USB cable, carry case and 9V battery.

  • Features
  • Technical
  • Documents
  • Software
    • High accuracy and rapid response. Short rise and fall times
    • Peak-hold function for tracing peak signal of light pulse with least duration
    • Data-hold function
    • Automatic zeroing, auto ranging, relative reading
    • Lux/FC measuring mode. Min/Max measurements
    • Easy to read, large backlit display
    • Windows compatible software (CD-ROM) supplied
  • Technical Details
    Display 3 3/4 digit LCD with high speed 40 segment bar graph
    Max Range 400,000 Lux, 40,000 FC
    Over Range Display LCD will show "OL" symbol
    Spectral Response CIE Photopic (CIE human eye response curve)
    Spectral Accuracy CIE Vλ function f1'≤6%
    Cosine Response f2' ≤2%
    Accuracy ±5% rdg±10d.(<10,000Lux), ±10% rdg±10d.(>10,000Lux)
    Repeatability ±3%
    Sampling Rate 1.5 times/sec analog bar-graph and digital display
    Photo Detector One silicon photo diode and spectral response filter
    Operating Temperature 0°C to +40°C (+32°F to +104°F)
    Operating Humidity 0% to 80% RH
    Power 1 x 9V battery (supplied). Auto power-off: 20 minutes
    Meter Dimensions 170mm (L) x 80mm (W) x 40mm (H)
    Photo Detector Dimensions 115mm (L) x 60mm (W) x 20mm (H) + 150cm coiled lead
    Weight 390g
  • HT-1309 Light Meter Software

    HT-1309 Light Meter Software

    Compatible with Microsoft Windows XP, 7, 8, 10