Light Meter

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TES-1339P

Photosynthesis Light Quantum Meter

Product Features
  • Autoranging 5 steps and conversion to µmole/m²/s (PPFD: Photosynthetic Photon Flux Density).
  • Integral illuminance measurement and conversion to mole/m²/d (Daily light integral).
  • Luminous intensity measurement.
  • Point - average function.
  • Spectral correction factor function. (include LED)
  • Time-hold function.
  • Dual Display, 4 digit LCD reading.
  • Spectral Sensitivity close to CIE photopic Curve.
  • Accurate and Instant response.
  • Data Hold function.
  • Data memory and read function.
  • Reference value stored for relative or
    percentage deviation measurement.
  • Ripple measurement for STRAY + LIGHT function.
  • Comparator function.
  • Auto power off function.
  • Backlight display function.
  • Auto datalogging & USB interface.
Photosynthesis Light Quantum Meter

 

Display

Dual display 4 digit LCD reading.

Measuring Range

99.99, 999.9, 9999, 99990, 999900 Lux
9.292, 92.92, 929.2, 9292, 92920 fc
Autoranging (5 step)     (1 fc = 10.76 Lux)

Overrange Display

OL is displayed

Resolution

0.01 Lux, 0.001 fc

Accuracy

±3% rdg ±5dgt (Calibrated to standard incandescent
 lamp, 2856 K)

CIE photopic f ’1

6%

Temperature Characteristics

±0.1% /

Measuring Rate

Approximately 5 time/sec

Photosensor

Silicon photodiodes

Data Memory Capacity

99 sets. (Direct reading from LCD display)

Data Logger Capacity

40000 sets.

Operating / Storage Conditions

0 ~ 40 <80% RH / -10 ~ 50 <70%RH

Power Source

6 pcs AAA size Battery

Battery Life (typical)

100 hours

Photosensor Lead Length

150 cm (approx.)

Photosensor Dimensions

92(L) ×60(W) ×29(H)mm

Dimension

150(L) × 72(W) × 35(H)mm

Weight

320g

Accessories

Carrying case, Instruction manual, Battery, CD software,
 RS232 to USB cable.