Data Logging Portable Luxmeter
Light / Radiation

Data Logging Portable Luxmeter

Model Number
HD2102.1 / HD2102.2


Standard Lead Time
3 weeks

The HD2102 luxmeters are handheld instruments with a large display capable of transferring data in real time to a PC or logging direct to its internal memory.

They measure illuminance, luminance, PAR, and irradiance using a wide variety of probes:

Photometric for illuminance and luminance.

Quantum radiometric for photon flow.

Radiometric for spectral ranges: UVA, UVB, UVC, and UV-BC


Combined Illuminance (lux) - Irradiance (W/m^2) - UVA spectral range.

Combined Total Effective Irradiance weighted according to the UV action curve

Global Solar Irradiance - pyranometer.

In addition to the max, min, and average values it's also possible to measure the cumulative dosage over time integral Q(t).


  • LP471PHOT: Illuminance, 0.1 lux to 200·103 lux.
  • LP471LUM2: Illuminance, 1 cd/m2 to 2000·103 cd/m2
  • LP471PAR: Photon Flow PAR, 0.1 μmol m-²s-1 to 10·10³ μmol m-²s-¹
  • LP471PAR02: Photon Flow PAR, 0.1 μmol m-²s-1 to 10·10³ μmol m-²s-¹.
  • LP471RAD: Irradiance 400 to 1050nm, 1.0·10-3 W/m²…2000 W/m²
  • LP471UVA: Irradiance 315 to 400nm, 1.0·10-3 W/m² … 2000 W/m²
  • LP471UVB: Irradiance 280 to 315nm, 1.0·10-3 W/m² … 2000 W/m²
  • LP471UVC: Irradiance 220 to 280nm, 1.0·10-3 W/m² … 2000 W/m²
  • LP471BUE: Effective Irradiance 380 to 550um (blue light), 1.0·10-3 W/m² to 2000 W/m²
  • LP471P-A: Combined Illuminance and UVA Irradiance, 315 to 400nm, 0.3 lux to 200·10³ lux &  1.0·10-3 W/m² to 2000 W/m²
  • LP471A-UVeff: Total Effective Irradiance, UV-CB and UVA 250 to 400nm, see data sheet for range.
  • LP471SILICON-PYRA: Global Solar Irradiance, 400 to 1100nm, 0…2000 W/m²
  • LP471PYRA: - LPPYRA03  Spectrally Flat Class C (Second Class) pyranometer; LPPYRA02 is a Spectrally Flat Class B (First Class) pyranometer and LPPYRA10 is a Spectrally Flat Class A (Secondary Standard) pyranometer.


  • LPBL: Probe holder with leveling device
  • LPBL3: Probe holder for mounting on a wall, adjustable angle.

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Key Specifications

Measured Quantities
lux - fcd - lux/s - fcd/s - W/m2 - µW/cm2 - J/m2 - µJ/cm2 - µmol/(m2 . s) - µmol/m2 - cd/m2 - µW/lumen
Max | Min | Average | Dosage Q(t)
Power Supply
(4) 1.5V type AA or Mains adaptor
Data Logging Capacity
38,000 samples for single probe | 14,000 samples for combined probe | Unlimited when connected to a PC
USB 1.1 - 2.0 to connect to the software or query via RS232C
Working Relative Humidity
0 to 90% non condensing
Protection Degree
Battery Life
200 Hours
Software Package
Included in the scope of supply

Available Accessories

Available Accessories

No accessories are set for this product.
No accessories are currently available for this item.
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