Multi-Purpose Digital Laser Sensor

LV-N series

LV-NH300/NH100 Area Spot Thrubeam

Unaffected by the target’s colour or shape

Optical Axis Alignment is Easy, Allowing the Detecting Area to be Clearly Viewed.

LV-NH300/100 wide area thrubeam laser sensor

Compact size. Four times smaller than conventional models

World's Smallest in Class

The optical system in the LV-NH300/100 series has been drastically improved compared to previous products. As a result, a small size suitable for general-purpose sensors has been achieved . The volume is reduced to a quarter* the size of previous models.
* LV-NH300T

Sharp linear beam created using a prism

Linear Area Beam (Transmitter)

A new optical configuration has been developed that uses a prism to provide a sharp linear beam. Wherever a target is passed within the sensing area, you will find that it is easily detected.(Patent pending)

Diffusion sheet for easy optical alignment

Light Diffusion Sheet (Receiver)

A light diffusion sheet for beam confirmation is placed at the end of the receiver. While the sensor is being operated, you can visually confirm that the receiver receives the area beam..(Patent pending)

Easily adjustable beam alignment

Easy Adjustment of Beam Axis

The optical system is drastically improved compared with previous products. As a result, a small size suitable for general-purpose sensors has been achieved for the first time ever. The volume is reduced to a quarter* the size of previous models.

Largest assortment of laser sensor heads

Industry Leader in Laser Sensor Development

KEYENCE offers both thrubeam and reflective sensor types to provide a wide range of detection options . With the world's largest number of sensor head variations, KEYENCE laser sensors can meet the needs of any application.


Detection of Sagging or Breakage of Wire Rod

Wire rod breakage

The linear area beam allows the user to visually check whether the wire rod is present within the detecting area.

Differentiation of Workpiece Length

Screw length differentiated

Differences in the screw length are differentiated based on the difference in the interrupted light intensity. Using two outputs enables you to detect the presence/absence of screws, in addition to differentiation of the length.

Detection of Small Components

Small component

The visible beam enables you to easily adjust the sensor position. In addition, even if the target position varies, the sensors area beam can still perform detection.

Differentiation of Workpiece Thickness

Workpiece diameter

The sensor differentiates between large and small diameter workpieces. By using two outputs, you can detect both the presence/absence of workpieces and differentiate between large and small diameter workpieces.

Detection of Workpiece with Apertures (Spring)

Apertures in workpieces

The sensor's area beam ensures stable detection even if the workpiece has apertures.

Detection of Incorrectly Assembled Components

Thin component assembly check

The sensor checks whether the component is incorrectly assembled. The visible laser spot allows for easy set-up even if the target is a thin component.

Differentiation Between Front and Back Faces of Workpiece

Reversed workpiece detectiont

The sensor detects a reversed workpiece based on the difference in the interrupted light intensity. The visible area beam spot simplifies setup even when the clearance is small.

Detection of Cutting Failure

Uncut part

The sensor with a 30-mm wide area beam reliably detects workpieces with a part left uncut.







Area thrubeam, High power

Area thrubeam, High performance

FDA (CDRH) Part 1040.10

Class 1 Laser Product

IEC 60825-1

Light source

Visible red semiconductor laser, Wavelength: 660 nm



2000 mm
(Detecting area: 10 mm)

2000 mm
(Detecting area: 30 mm)







Relative humidity

35 to 85% RH (No condensation)

Ambient temperature

-10 to +55°C (No freezing)



Glass reinforced plastic

Lens cover

Transmitter: Glass, Receiver: Polyarylate


Approx. 75 g

Approx. 95 g


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