Photosynthesis Light Quantum Meter

TES-1339P

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.

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.