TES-137 Luminance Meter

Product Features

4-digit LCD reading with a dual display.
Closeness of the spectral sensitivity to the CIE photopic curve.
Assessing Levels Range: greater than 0.171 to 1999 kcd/m2, greater than 0.050 to 580.0 kfL, Autoranging 7 step.
Quick and accurate response.
Measurements of peak brightness, distinct B-As, the luminance ratio A/B, and the variation percent A.
features for colour correction and user calibration.
Measurement of accumulation brightness.
The max/min/avg function
Backlit LCD screen.
Function of comparison.
Data holding feature.
Storing and reading data.
Data logging capability.
USB Port Interface

Specification

Display	Dual display 4 digit LCD read out.
Measuring Range	9.999, 99.99, 999.9, 9.999k, 99.99k, 999.9k, 1999k cd/m² 9.999, 99.99, 999.9, 9.999k, 99.99k, 580.0k fL Auto ranging (7 step) (1 fL = 3.426 cd/m²)
Measuring Angle	2°
Overrange Display	OL is displayed
Resolution	0.001 cd/m², 0.001 fL
Accuracy	±3% rdg ±5dgt (Calibrated to standard incandescent lamp, 2856°Κ, at 25℃/77℉)
CIE Photopic f ’₁	≦6%
Temperature Characteristics	±0.1%/℃
Measuring Rate	Approximately 5 time/sec
Photosensor	Silicon photodiodes
Data Memory Capacity	200 sets. (Direct reading from LCD display)
Data Logger Capacity	microSD CARD 4GB
Operating / Storage Conditions	0℃ to 50℃ <80% RH -10℃ to 60℃ <70%RH
Power Source	6 pcs 1.5V AAA size Battery
Battery Life (typical)	50 hours
Photosensor Lead Length	90 cm (approx.)
Photosensor Dimensions	40f×158(L)mm
Dimension	150(L) × 72(W) × 35(H)mm
Weight	Meter: 235g, Photosensor: 210g
Accessories	Carrying case, Instruction manual, Battery, CD software, Micro-USB cable