# Door/window contact sensor No name KONTAKTRON BOCZNY KN-02-BR (model KN-02-BR)

**URL:** https://aio.lv/en/product--no-name-kn-02-br--11959404
**Data updated:** 2026-03-11 13:59 (EET)
**Category:** Smart Sensors
**Manufacturer:** No name
**Manufacturer code:** KN-02-BR
**EAN:** 5902887020292
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 3.99 €
**Prices and availability valid until:** 2026-07-19 23:59
**Price without VAT (21%):** 3.30 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--no-name-kn-02-br--11959404

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 13.07.2026 | free |
| Pickup points | 16.07.2026 | 1.99 EUR |
| Courier delivery to door | 16.07.2026 | 4.99 EUR |

## Summary description

KONTAKTRON BOCZNY KN-02-BR is a side-mounted door/window contact sensor by No name, model KN-02-BR. It is designed to detect opening/closing of doors and windows and provide a contact switch signal for security or automation systems. Typical use includes door and window monitoring in homes, offices, and alarm installations where a compact side-mounted magnetic contact is required.

## Long description

KONTAKTRON BOCZNY KN-02-BR (model KN-02-BR) is a side-mounted door/window contact sensor designed for monitoring the open or closed state of doors and windows. The device provides a simple magnetic contact switch output that can be integrated into alarm panels, control boards, or automation systems. Its compact side-mounted form factor makes it suitable for installations where the sensor must be mounted along the frame or inside narrow profiles.
Advantages
The side-mounted design allows discreet installation on door and window frames without occupying sash or jamb space. The magnetic contact provides a reliable binary signal for use with security systems and building automation. Its compact dimensions and straightforward operation simplify installation and reduce the need for structural modifications. The sensor is compatible with a wide range of alarm and control equipment that accept standard contact inputs.
Suitable for
Residential door and window monitoring
Office access control and perimeter protection
Alarm system inputs for burglary detection
Building automation for presence and state detection
Key specifications
Mounting type: side-mounted (suitable for frame or narrow profile installation)
Output type: magnetic contact switch (normally open / normally closed depending on wiring)
Material: commonly used durable plastic housing for indoor installations
Installation: surface-mounted with screws or adhesive (depending on installer preference)
Operating environment: indoor use for doors and windows in homes and offices
How to use
Position the sensor body and its magnetic counterpart on the door or window frame so that they align when the door or window is closed. Fix the components using screws or appropriate adhesive according to the installation surface. Connect the sensor leads to the alarm panel or control input, observing the panel’s contact wiring conventions (NO/NC). After wiring, test the contact by opening and closing the door or window to confirm the signal changes as expected and that the control system registers the state transitions.
Usage recommendations
Install the sensor on a stable, dry surface away from direct exposure to weather if used on exterior doors; verify alignment and secure mounting to prevent false triggers. If the control panel requires a specific contact configuration, set or wire the sensor accordingly and perform regular tests after installation to ensure reliable operation.

## FAQ

### How much does the Door/window contact sensor No name KONTAKTRON BOCZNY KN-02-BR cost, and is it available for purchase?

The price is 3.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 77 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 13.07.2026 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, Bank cards on-line, Apple Pay, Google Pay. 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 No name 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 No name 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/11959404/67404782_large.webp