The Datalogic (Datasensing) S15 is an M18 tubular photoelectric sensor with a very short housing. Where a standard M18 sensor such as the S5N needs more depth behind the mounting plate, the S15 fits into tight spaces on conveyors, packaging machines and small assembly stations.
Main features
- Short M18 housing: about 40 mm long, made for applications with reduced space.
- Standard M18 × 1 thread: fixed with two 24 mm nuts, so it fits the same 18 mm hole as other M18 sensors.
- IP69K protection: suitable for harsh conditions and wash-down cleaning.
- Common sensing modes: retroreflective, polarised retroreflective, diffuse proximity and through-beam.
- Single output in PNP (code PK) or NPN (code NK), with light/dark mode selected by the white wire.
S15 technical data (standard models)
| Specification | Value |
|---|---|
| Supply voltage | 12–30 Vdc |
| Output | PNP (PK) or NPN (NK), 100 mA max |
| Response time / switching frequency | 1 ms / 500 Hz |
| Retroreflective range | 0.1–4 m on R2 reflector |
| Polarised retroreflective range | 0.1–3 m on R2 reflector |
| Diffuse proximity | 1–10 cm (short), 1–35 cm (long) |
| Through-beam range | 0–20 m |
| Light | Infrared 880 nm or red 660 nm (polarised models) |
| Housing / lens | PBT / PMMA |
| Protection | IP69K |
| Operating temperature | -25 to 55 °C |
Values are from the Datalogic S15 series datasheet. Newer S15 versions add M12 connector models, transparent-object models and other housing versions, so always check the datasheet for your exact code; we send it with every quotation.
Reading an S15 model code
Take S15-PA-5-B01-PK (see the product):
- S15 – series
- PA – plastic housing, axial optic (NA marks a different housing version)
- 5 – M12 connector (2 = 2 m cable)
- B01 – optical function: A00 retroreflective, B00/B01 polarised retroreflective, C10/C11 diffuse, T01 transparent objects, F00 through-beam receiver, G00 emitter
- PK – PNP output (NK = NPN)
For more detail, read how to read a Datalogic sensor model code.
Where the S15 is used
- Box and product detection on narrow conveyors
- Small packaging and labelling machines with little space behind the frame
- Food and beverage lines that are washed down (IP69K)
- Presence checks in fixtures and assembly stations
S15 or S5N?
Choose the S15 when space is the main problem and you need a simple, reliable sensor. Choose the S5N when you need longer ranges, background suppression, laser light, two outputs (NO + NC) or IO-Link. Our S50 vs S5N comparison explains the bigger M18 ranges.
S15 models we supply
- S15-PA-5-B01-PK – polarised retroreflective, PNP, M12
- S15-PA-5-C11-PK – diffuse proximity, PNP, M12
- S15-PA-2-A00-PK – retroreflective, PNP, 2 m cable
- S15-NA-5-C11-NK – diffuse proximity, NPN, M12
- S15-NA-5-T01-NK – transparent objects, NPN, M12
See all Datalogic photoelectric sensors.
Frequently asked questions
How long is the Datalogic S15 sensor?
The S15 has a short M18 housing of about 40 mm, much shorter than a standard M18 photoelectric sensor.
Does the S15 have a sensitivity trimmer?
The original S15 models have no trimmer, which keeps the setting fixed and stops accidental changes. Some newer versions differ, so check the datasheet for your code.
What is the difference between PK and NK?
PK is a PNP output and NK is an NPN output. Choose the one that matches your PLC input. See our PNP vs NPN guide for help.
Can the S15 be used in wash-down areas?
Yes. The S15 series is rated IP69K for high-pressure cleaning.
Do connector models need a cable?
Yes. Code 5 models have an M12 connector, so you also need a matching M12 cable.
Buy from VXT Sensor
VXT Sensor, Noida, supplies genuine Datalogic (Datasensing) sensors across India. Send us the model code or describe your application, and we will confirm the right model, datasheet, price and delivery time. Send an enquiry or call +91 99530 39482.
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