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Red handheld light meter with LCD display and USB port

TENMARS ELECTRONICS

TENMARS ELECTRONICS TM-203 Autoranging Datalogging Light Meter 7000 Records

SKU CH-T4Q8-PSBVN MPN TM-203

Measures illumination in lux or foot-candles with autoranging accuracy and stores 7000 records via USB

  • Labor warranty1 Year
  • Product typeTest Equipment
  • Color and finishRed
  • Number of items1 pack
  • Sold asBox
  • Parts warranty3 Years
  • Meets JIS C 1609:1993 and CNS 5119 Class A standards
  • Spectral response matches CIE luminous efficiency curve
  • Cosine corrected up to 80° with ±25% max deviation
  • Auto-ranging measures 20 to 200000 Lux and 20 to 20000 foot-candle
  • USB datalogger stores 7000 records for Windows 98SE through 10

Autoranging Datalogging Light Meter

The TM-203 measures illumination in lux or foot-candle across five ranges up to 200000 lux. It meets JISC1609:1993 and CNS 5119 general A class specifications with spectral response close to CIE luminous efficiency. A USB interface stores 7000 records for later analysis on Windows systems from 98SE through 10.

Professionals needing logged light data

Facility managers, photographers and safety inspectors can capture time-stamped readings in warehouses, offices, hospitals or stadiums. The meter covers the full visible spectrum with cosine correction and ±3 % accuracy under standard incandescent light. Buyers who require wireless transfer or battery-backed operation should consider other instruments.

7000-record USB datalogger

Internal memory holds 7000 measurements that transfer via USB to compatible Windows software. The 3 1/2-digit LCD shows 2000-count readings across 20, 200, 2000, 20000 and 200000 lux ranges. Cosine deviation stays within ±0.5 % at 10°, ±2 % at 30°, ±3 % at 50°, ±6 % at 60° and ±25 % at 80°.

How it compares

Measured against everything we stock in Electrical Trade Tools & Kits, at today’s prices. Recalculated every night.

Price $183.99
Pricier than about 75% of the 5,006 comparable items (median $95.99).

Specifications

Product
Brand nameTENMARS
Model nameTM-203
Product typeTest Equipment
Color and finishRed
In the box
Number of items1 pack

Questions about this item

What operating system does the TM-203's USB data logger require to transfer its 7000 records?

The USB interface works with Windows 98SE, ME, 2000, XP, Vista, 7, 8, and 10 for downloading logged data.

Can the TM-203 measure the output of LED fixtures accurately, or is it limited to incandescent sources?

Accuracy is ±3 % when calibrated to a standard incandescent lamp at 2856 K and ±6 % for other visible light sources including LEDs.

How can I verify the TM-203's cosine correction is performing within specification after setup?

At 10° off-axis the deviation should be within ±0.5 %; at 30° within ±2 %; at 50° within ±3 %; at 60° within ±6 %; at 80° within ±25 %.

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