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Red handheld luminance meter TES-137 with dual LCD display

TES Electrical Electronic Corp.

TES Electrical Electronic Corp. TES-137 Electrician Tool Luminance Meter 0.01-1999k cd/m² 0.001-580.0k fL

SKU CH-FW6F-WR3DP MPN TES-137

Measures luminance from 0.01 to 1999k cd/m² and 0.001 to 580.0k fL with dual LCD, data logging and USB output

  • TypeTest Equipment
  • Color/FinishRed
  • Item Count1 pack
  • Selling UnitBox
  • Parts3 Years
  • Labor1 Year
  • Measures luminance from 0.01 to 1999k cd/m² for wide-range testing
  • Dual 4-digit LCD shows simultaneous readings for quick analysis
  • Spectral sensitivity matches CIE photopic curve for accurate results
  • USB interface enables data logging and computer transfer
  • Max, Min, Average and peak functions capture full lighting profile

Professional luminance meter for lighting

The TES-137 measures luminance from 0.01 to 1999k cd/m² and 0.001 to 580.0k fL across seven autoranging steps. Its dual 4-digit LCD provides simultaneous readings while spectral sensitivity matches the CIE photopic curve. Designed for engineers validating displays, street lighting, airport facilities, and medical lighting installations.

USB data logging and comparator functions

A USB interface enables data transfer for documentation and further analysis. The meter stores readings in internal memory and supports accumulation luminance measurement over time. Built-in comparator, peak hold, max/min/average, and deviation functions allow immediate pass/fail assessment on site. Backlit display and auto power-off support extended field use.

Verify measurement range and calibration needs

Confirm the 0.01 to 1999k cd/m² range covers the luminance levels in your specific application before purchase. The instrument offers user calibration factor and colour-correction functions for specialised transmittance or filter testing. Buyers requiring integrated illuminance measurement or wireless connectivity should note these functions are not included.

Highlights

  • Measures luminance from 0.01 to 1999k cd/m² for wide-range testing
  • Dual 4-digit LCD shows simultaneous readings for quick analysis
  • Spectral sensitivity matches CIE photopic curve for accurate results
  • USB interface enables data logging and computer transfer
  • Max, Min, Average and peak functions capture full lighting profile

Specifications

BrandTES
ModelTES-137
TypeTest Equipment
Color/FinishRed
Item Count1 pack
Selling UnitBox
Parts3 Years
Labor1 Year

Questions about this item

Will the USB interface or 4-digit LCD need servicing after prolonged use?

The meter uses a USB interface and dual 4-digit LCD; no user-serviceable parts are listed, so only the calibration factor may require periodic verification.

Which measurement range saturates first during continuous luminance logging?

The autoranging steps stop at 1999k cd/m² or 580.0k fL, so readings beyond those limits will show over-range instead of higher values.

How much heat or noise does the unit produce when left on all day?

The instrument has no fan or moving parts, runs on low battery current, and the auto power-off function limits heat build-up during extended sessions.

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