High-speed, High-accuracy CCD Laser Displacement SensorLK-G3000 series


Sensor Head Spot Type


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Reference distance

150 mm 5.91" (Diffuse reflection),147.5 mm 5.81" (Specular reflection)

Measuring range

±40 mm ±1.57"(Diffuse reflection),±39 mm ±1.54"(Specular reflection)

Light source


Red semiconductor laser


655nm (Visible light), Class 3R laser product (JIS C6802)

Laser Class

Class 3R (IEC 60825-1), Class IIIa (FDA CDRH Part 1040.10)

Control output

4.8 mW maximum

Spot diameter (at standard distance)

Approx. ø120 µm ø0.004724"


±0.05% of F.S. (F.S.= ±40 mm ±1.57")*1


0.5 µm 0.000020"*2

Sampling cycle

20/50/100/200/500/1000 μs (Selectable from 6 levels)

LED display

Near the center of the measurement: Green lights
Within the measurement area: Orange lights
Outside the measurement area: Orange flashing

Temperature characteristics

0.01% of F.S./°C (F.S.= ±40 mm ±1.57")

Environmental resistance

Enclosure rating

IP67 (IEC60529)

Ambient temperature

0 to +50°C 32 to 122°F

Relative humidity

35 to 85% RH (No condensation)

Environmental resistance

Operating ambientluminance

Incandescent lamp or fluorescent lamp: 10000 lux max.


10 to 55 Hz, double amplitude 1.5 mm 0.06"; two hours in each direction of X, Y, and Z


Aluminum die-cast


Approx 290 g (including the cable)

*1 This value was taken when measuring a KEYENCE standard target (ceramic) in standard mode.
*2 These values were taken when measuring a KEYENCE standard target (SUS) at a reference distance and with the number of averaging measurements set to 4,096

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