Self-contained CMOS Laser Sensor

LR-Z series

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M18 threaded mount w/ M12 connector type, 490 mm LR-ZH490CB

LR-ZH490CB - M18 threaded mount w/ M12 connector type, 490 mm

*Please note that accessories depicted in the image are for illustrative purposes only and may not be included with the product.


  • CE Marking
  • UL Listing(c/us)
  • Diversey





U.C.D. Function
Distance based laser sensor


M18 Threaded mount


NPN/PNP selectable

Cable connection

M12 connector, 4-pin

Detectable distance

25 to 490 mm 0.98" to 19.29" (465 to 0)*2

Standard detectable deviation

25 to 170 mm 0.98" to 6.69": 9 mm 0.35"
170 to 290 mm 6.69" to 11.42": 25 mm 0.98"
290 to 390 mm 11.42" to 15.35": 40 mm 1.57"
390 to 490 mm 15.35" to 19.29": 50 mm 1.97"

Display resolution

1 to 5 (1 to 5 mm 0.04" to 0.20")

Spot size

Approx. ø3 mm ø0.12"

Response time

1.5 ms / 10 ms / 50 ms selectable

Light source


Red laser (660 nm)

Laser class

Class 2 laser product (IEC60825-1)
Class II Laser product (FDA(CDRH) Part1040.10)



3-digit 7-segment display (white),
output indicator (yellow),
DATUM indicator (orange),
1 spot indicator (green)


OFF/ON delay/OFF delay/One-shot


Power voltage

10 to 30 VDC, including 10% ripple (P-P), Class 2 or LPS

Power consumption

450 mW or less (18 mA or less at 24 V, 34 mA or less at 12 V)

Control output

NPN open collector/PNP Open collector selectable,
Applied voltage 30 VDC or less, Control current 100 mA or less,
Residual voltage 1.2 V or less at 10 mA or less, 2 V or less at 10 to 100 mA

Protection circuit

Protection against reverse power connection, output overcurrent, output surge, reverse output connection

Output operation

Light-ON / Dark-ON selectable

External input

Input time calibration: 35 ms or more ON, 35 ms or more OFF
Laser emission stop: 2 ms or more ON, 20 ms or more OFF
Short-circuit current NPN: 1 mA or less/PNP: 2 mA or less

Environmental resistance

Enclosure rating

IP68 (IEC60529), IP69K (DIN40050-9), NEMA 4X, 6P, 13 (NEMA250), ECOLAB*3, Diversey*3

Insulation resistance

20 MΩ or more (500 VDC)

Ambient light

Incandescent lamp: 10,000 lux or less
Sunlight: 20,000 lux or less at 240 mm 9.45"*4
Incandescent lamp: 2,000 lux or less
Sunlight: 4,000 lux or less at 490 mm 19.29"*4

Ambient temperature

-10 to +50 °C 14 to 122 °F (No freezing)

Storage temperature

-25 to +75 °C -13 to 167 °F (No freezing)

Relative humidity

35 to 85 % RH (No condensation)

Withstand voltage

1,000 VAC, 50/60 Hz, 1 min

Vibration resistance

10 to 55 Hz, Double amplitude 1.5 mm 0.06", 2 hours in each of the X, Y, and Z directions

Shock resistance

1,000 m/s2, 6 times in each of the X, Y, and Z directions


Case: SUS316L, Display: PES, Lens cover: PMMA with scratch-resistant coating,
Packing/Connector ring: FKM, Nut: SUS316L, Lock washer: SUS304

Accompanying items

Instruction Manual,
FDA warning/certification/identification label,
Laser warning/explanation labels


Approx. 75 g

*1 IO-Link specification v.1.1/COM2 (38.4 kbps) is supported. (LR-ZH490CB : Only when PNP output is selected.) You can download a setup file from the KEYENCE website. If using the product in an environment in which downloading files over the internet is not possible, contact your nearest KEYENCE office.
*2 Display readings can be used as a guide for the detecting distance. When the setting value is tuned, the readout shifts. When the value exceeds "-99", "-FF" is displayed.
*3 Have passed resistance tests with cleaning agents from multiple manufactures.
*4 When the response time is 10 ms

Data Sheet (PDF) Other Models