# Delock 91873 U-Shaped Slot Sensor 5 mm, PNP, Light/Dark Switching, 2 m Cable

**URL:** https://aio.lv/en/product--delock-91873--12583256
**Data updated:** 2026-07-16 19:13 (EEST)
**Category:** Other goods
**Manufacturer:** DELOCK
**Manufacturer code:** 91873
**EAN:** 4043619918737
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 25.49 €
**Prices and availability valid until:** 2026-08-16 23:59
**Price without VAT (21%):** 21.07 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--delock-91873--12583256

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 17.08.2026 | free |
| Pickup points | 20.08.2026 | 1.79 EUR |
| Courier delivery to door | 20.08.2026 | 4.99 EUR |

## Summary description

The Delock 91873 is a U-shaped slot sensor with a 5 mm gap, designed for precise object detection in industrial automation. It features PNP output, switchable light/dark operation, and comes with a 2-meter cable with 4 open ends. This sensor is ideal for position sensing, counting, and monitoring tasks in various technical applications, ensuring reliable performance and easy integration into control systems.

## Long description

The Delock 91873 U-shaped slot sensor is a high-precision optoelectronic device engineered for reliable object detection in industrial automation environments. Featuring a 5 mm slot width, this sensor utilizes infrared light to detect objects passing through the gap, providing consistent performance for various control and monitoring tasks. The unit is equipped with a PNP output and offers the flexibility of switchable light or dark operation, allowing it to be adapted to specific system requirements. It comes pre-wired with a 2-meter cable featuring four open ends for direct integration into existing electrical circuits.
Advantages
This slot sensor offers exceptional reliability due to its non-contact detection method, which minimizes mechanical wear and ensures a long service life even in high-frequency operation cycles. The U-shaped design provides a stable and focused light beam, reducing the risk of false triggers from ambient light or misaligned objects. Its compact form factor allows for easy installation in space-constrained machinery, while the switchable light/dark mode provides versatile configuration options for different logic requirements in automation systems.
Suitable for
Position sensing of components on conveyor belts
Counting items in automated production lines
Edge detection and monitoring of thin materials
Limit switching in mechanical assemblies
This sensor may not be suitable for detecting transparent or highly reflective objects that do not sufficiently interrupt the infrared light beam. Additionally, it is not designed for outdoor use in extreme weather conditions or environments with high levels of dust, steam, or debris that could obstruct the optical path within the 5 mm slot.
Key specifications
Slot width: 5 mm
Output type: PNP
Switching mode: Light/Dark switchable
Cable length: 2 meters
Connection: 4 open wire ends
Detection principle: Infrared light barrier
To use the Delock 91873, mount the sensor securely so that the object to be detected passes through the 5 mm slot. Connect the four wires according to your control system's wiring diagram, ensuring the power supply matches the sensor's voltage requirements. Once installed, use the integrated switching mechanism to select between light-on or dark-on operation based on your specific application logic. Verify the alignment to ensure the object consistently interrupts the light beam during operation.
What to consider before purchase
Ensure the 5 mm slot width is sufficient for the objects you intend to detect.
Verify that your control system is compatible with PNP output signals.
Check the mounting space to ensure the U-shaped housing fits correctly.
Confirm that the 2-meter cable length is adequate for your installation layout.
For optimal performance, keep the optical surfaces within the slot clean and free of dust or debris. Regularly inspect the cable connections to ensure they remain secure and protected from mechanical stress or vibration.

## FAQ

### How much does the Delock 91873 U-Shaped Slot Sensor 5 mm cost, and is it available for purchase?

The price is 25.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 50 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 17.08.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All DELOCK products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized DELOCK service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/12583256/68953590_large.webp