JNS Right-Angle (90°) Laser Diffuse Reflective Sensor — M4 / M6

Name: JNS Right-Angle (90°) Laser Diffuse Reflective Sensor — M4 / M6
Brand: DAIDISIKE
SKU: jns-right-angle-laser-diffuse-reflective-sensor-m4-m6
Availability: InStock

90° right-angle M4/M6 laser diffuse sensor for object detection in tight, low-clearance spaces.

JNS Right-Angle (90°) Laser Diffuse Reflective Sensor — M4 / M6 - product photo

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Technical Specifications

Type	Laser diffuse reflective photoelectric sensor (90° right-angle body)
Light source	650nm red laser
Detection method	Diffuse reflection
Detection range	M4: 10-50mm; M6: 15-100mm
Output type	NPN / PNP, normally open NO (suffix 1) / normally closed NC (suffix 2)
Operating voltage	10-30VDC
Thread size	M4 / M6
Structure	90° right-angle bend
Protection rating	IP65

Overview

The JNS series is a miniature laser diffuse reflective photoelectric sensor built around a 650nm red laser light source, housed in a 90° right-angle body. It detects the presence of an object by emitting a laser beam and sensing the light reflected directly off the target, with no reflector or opposing receiver unit required. It suits machine builders and system integrators who need object presence detection inside compact fixtures, narrow slots, or panels where a straight-body sensor's cable exit or body length would not clear surrounding structure.

It is available in two threaded body sizes: M4, with a 10-50mm detection range, and M6, with a 15-100mm detection range. Each size is offered in NPN or PNP output, with normally-open (NO) or normally-closed (NC) switching logic, for four output combinations per size, and operates on a 10-30VDC supply with an IP65 protection rating.

Features & Benefits

90° Bend Body Fits Where Straight Sensors Cannot

The right-angle housing changes the cable/connector exit direction relative to the sensing axis, reducing the depth a sensor needs behind the mounting face compared with a straight-body unit of the same thread size.

True Miniature Thread Sizes — M4 and M6

The sensing head threads directly into M4 or M6 mounting holes, letting it be integrated into small brackets and compact fixtures without an adapter.

Reflector-Free Diffuse Detection

Because it senses light reflected directly off the target object, no separate reflector or receiver unit needs to be aligned and mounted, simplifying installation versus a through-beam or retro-reflective setup.

Selectable Detection Range by Thread Size

M4 covers a 10-50mm working range and M6 covers 15-100mm, giving two range options to match different mounting distances without changing the sensing principle.

NPN/PNP and NO/NC Output Flexibility in One Series

Each thread size is offered as NPN or PNP, and as normally-open (suffix 1) or normally-closed (suffix 2), covering four output combinations per size to match different PLC input card types and logic requirements.

650nm Visible Red Laser Aids Setup and Alignment

A visible red laser spot lets an installer see exactly where the sensor is aiming during mounting and adjustment, unlike an infrared beam.

IP65 Protection Against Dust and Splashing Water

The IP65 rating protects the sensor from dust ingress and water jets from any direction, suiting general factory-floor environments.

Wide 10-30VDC Supply Range

Operates across a 10-30VDC range, matching the common 24VDC industrial control supply with headroom for voltage variation.

Applications

Small-Part Presence Detection in Compact Assembly Fixtures — The small M4/M6 thread and 90° body let the sensor be mounted directly in a fixture without the space a larger straight-body sensor would need.

Object Detection in Narrow Slots or Channels — The right-angle bend routes the cable exit sideways, useful when there is no clearance behind the mounting face for a straight cable/connector run.

PCB or Small-Component In-Position Detection on Assembly Lines — The 10-50mm (M4) or 15-100mm (M6) diffuse detection range suits close-range presence checks typical of small-parts handling stations.

Compact Automation Cabinet or Panel-Internal Detection — Where cabinet or panel internal space is limited, the miniature threaded body and bent housing reduce the footprint needed behind the panel.

Retrofitting Confined Machine Locations a Straight-Body Sensor Cannot Reach — The 90° bend gives an alternative mounting geometry for spaces where a straight sensor's body length or connector clearance is the limiting factor.

General Object Presence/Absence Sensing Without a Reflector — Diffuse detection off the target itself avoids the extra installation step of mounting and aligning a reflector, useful for one-off or hard-to-reach detection points.

PLC Digital Input Signaling in NPN or PNP Control Systems — Available in both NPN and PNP output, letting the same sensing function integrate directly with either sinking or sourcing PLC input cards.

Models & Ordering Information

M4 Right-Angle Diffuse Sensor (Detection Range 10-50mm)

JNS0440N1-90°JNS0440P1-90°JNS0440N2-90°JNS0440P2-90°

N = NPN, P = PNP output; suffix 1 = normally open (NO), suffix 2 = normally closed (NC).

M6 Right-Angle Diffuse Sensor (Detection Range 15-100mm)

JNS06100N1-90°JNS06100P1-90°JNS06100N2-90°JNS06100P2-90°

N = NPN, P = PNP output; suffix 1 = normally open (NO), suffix 2 = normally closed (NC).

How to Select

Choose M4 (10-50mm detection range) when the mounting hole is M4 threaded and the required detection distance is within 50mm.
Choose M6 (15-100mm detection range) when the mounting hole is M6 threaded and the required detection distance is within 100mm.
For a sinking (NPN) PLC input card, select a model with "N" in the part number, e.g. JNS0440N1-90°.
For a sourcing (PNP) PLC input card, select a model with "P" in the part number, e.g. JNS0440P1-90°.
For an output that turns on when an object is detected, select suffix "1" (normally open, NO); for an output that turns off when an object is detected, select suffix "2" (normally closed, NC).
All models share the same 90° right-angle body, so confirm before ordering that this cable/connector exit direction suits your installation space.
Confirm the field supply falls within 10-30VDC; this is the same specification across both M4 and M6 sizes.

📘 Need the full method? NPN vs PNP Sensor Outputs Explained

When NOT to specify the JNS — and what to use instead

The target is dark or matte near the top of the rated range (close to 50mm on M4 or 100mm on M6)

Why not: As a diffuse reflective sensor it senses light reflected off the target's own surface, so the quoted ranges depend on the object's color and reflectivity rather than being fixed for every surface.

Use instead: a laser through-beam pair for detection that doesn't depend on target reflectivity

A detection distance beyond 100mm is required

Why not: The longest rated range in this right-angle diffuse family is the M6 at 15-100mm; there is no longer-range variant in this series.

Use instead: a standard straight-body M12/M18 laser diffuse sensor, or a through-beam pair for longer range

A straight in-line sensor body is preferred and there's no clearance restriction behind the mounting face

Why not: This model's distinguishing feature is its 90-degree bent body built to reduce mounting depth; that added geometry brings no benefit if a straight body already fits.

Use instead: a straight-body M4/M6 laser diffuse sensor

Machine guarding or personnel-safety interlocking

Why not: Only IP65 sealing and a 10-30VDC supply rating are documented for this switch; no safety-function certification is stated.

Use instead: a dedicated safety light curtain, kept entirely separate from this proximity sensor

Specifications we do not publish yet

We only publish a figure once we are confident it is true. The items below are still being validated through further testing and real-world customer feedback, so for now we would rather leave them open than guess. If one of them matters to your design, ask us for the latest validated status.

Laser safety class (only 650nm wavelength is documented)
Minimum detectable object size
Response time / switching frequency
Hysteresis (repeat accuracy)
MTBF
Exact operating/storage temperature range
Cable/connector specification

Frequently Asked Questions

What is the detection range of the JNS M4 laser diffuse sensor?

The M4 body size has a detection range of 10-50mm, per the product's rated specifications.

What is the detection range of the JNS M6 laser diffuse sensor?

The M6 body size has a detection range of 15-100mm, per the product's rated specifications.

What is the difference between the M4 and M6 versions?

Both use the same 650nm laser diffuse detection principle, 90° right-angle body, and 10-30VDC supply. They differ in thread size (M4 vs M6) and detection range (10-50mm for M4 vs 15-100mm for M6).

Is this a diffuse or through-beam sensor?

It is a diffuse reflective sensor — it detects the light reflected directly off the target object and does not require a separate reflector or receiver unit.

What output types are available?

Each thread size is offered in NPN or PNP transistor output, with normally-open (NO, suffix "1") or normally-closed (NC, suffix "2") switching logic — four combinations per body size.

What is the supply voltage?

10-30VDC, per the product's rated specifications.

What light source does it use?

A 650nm visible red laser diode.

What is the ingress protection rating?

IP65.

Why is the body bent at 90 degrees?

The 90° bend changes the cable/connector exit direction relative to the sensing axis, which can reduce the mounting depth needed behind the panel or fixture compared with a straight-body sensor of the same thread size.

Does this sensor need a reflector or a separate receiver unit?

No. As a diffuse reflective sensor, it detects light reflected directly from the target object itself, so no reflector plate or opposing receiver unit is needed.

Can DAIDISIKE provide certification documents for the JNS series?

Certification documents are available on request.

Works Well Together

On the same machine or line, JNS is typically ordered together with: Photoelectric Sensors · Fiber Optic Sensors · Slot Sensors

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