- Standards: JIS C 1609-1 2006 [Illuminometer] general type class AA illuminometer compliance
- Photoelectric element: Silicone photo diode
- Response speed: Auto range/5 seconds, Manual range/2 seconds
- Function: Response switch, range hold, timer hold, deviation display, auto power OFF, color correction coefficient setting function, average illuminance calculation, light source altitude measurement, cumulative illuminance measurement
- Size: 67 x 177 x 38mm
- Weight: 260g
- Power supply: AA battery (internal for test) x 2, Or USB power supply
- Accessories: Recorder output plug, Soft case
- Measurement range (Lx): 0.00 - 9.99/99.9/999/9990/99900/999000
- Model number: 510-21
- Package size：100×190×70 mm 460 g