Laser Power Meters/Environmental Meters
ILLUMINANCE METER
LX20
Stick-shaped small light sensor (window diameter 9 mm) for narrow position or area

Calibration available products
Calibration available products
- Easy-to-carry pocket size.
- Separate, stick-shaped light sensor (window diameter 9 mm) from the main body enables measurement of a narrow position or area. The light sensor can also be integrated with the main body for measurement.
- 4039 full-scale count with a bar graph display.
- Improved measurement accuracy by using a silicon photodiode, which has a spectral sensitivity approximating the relative luminous efficiency specified by CIE (Commission Internationale d'Eclairage), in the light sensor.
- Wide measuring range of 0.1 lx to 403.9 klx (403,900 lx).
- Data hold function.
- Auto power save function prevents wasting of battery power.

- Auto power save
- The display disappears to bring the device into the power-save state when a certain time has passed after power-up. Some models have a function to cancel this function.
- Data hold
- A value indicated on the display is fixed. It is fixed even after the test lead is removed, and can be used as a record for reference purposes.
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Specifications
Light sensor element | Si photodiode with approximated relative luminous efficiency |
Dispaly | Digital display: 4039 full scale |
Bar graph display: 41-segment display | |
Sampling rate | Digital display: Approx. 3 times/sec. |
Bar graph display: Approx. 30 times/sec. | |
Ranges | 400 lx range: 0.1 lx to 403.9 lx |
4000 lx range: 1 lx to 4039 lx | |
40 klx range: 0.01 klx to 40.39 klx | |
400 klx range: 0.1 klx to 403.9 klx | |
Relative spectral sensitivity | Approximating the standard luminous efficiency |
Power supply | LR44 1.5V×2 |
Size/Mass | 117(H)×76(W)×18(D)mm / approx. 120 grams |
Light sensor probe | 84(H)×16(W)×10(D) mm |
Light sensor probe | Aprox. 0.9 m |
Accessories | Instruction manual x 1 |