# Reed Switch / Side Contact Sensor No name KN-CA51 — KN-CA51

**URL:** https://aio.lv/en/product--no-name-kn-ca51--11959449
**Data updated:** 2026-03-11 13:59 (EET)
**Category:** Smart Sensors
**Manufacturer:** No name
**Manufacturer code:** KN-CA51
**EAN:** 5902887044281
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 7.49 €
**Prices and availability valid until:** 2026-07-18 23:59
**Price without VAT (21%):** 6.19 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--no-name-kn-ca51--11959449

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 08.07.2026 | free |
| Pickup points | 13.07.2026 | 1.99 EUR |
| Courier delivery to door | 13.07.2026 | 4.99 EUR |

## Summary description

KN-CA51 is a side-contact magnetic reed switch sensor (brand: No name) designed to detect opening or movement via magnetic field interruption. The compact KN-CA51 fits flush mounting at door or window frames, provides simple normally open/normally closed wiring compatibility, and is suitable for alarm systems, security sensors, and basic magnetic detection in residential or light commercial installations.

## Long description

KN-CA51 is a compact side-contact magnetic reed switch sensor by No name, designed to detect opening or movement through interruption of a magnetic field. The sensor is intended for flush mounting in door or window frames where a discreet profile and side contact position are required. KN-CA51 supports simple normally open (NO) or normally closed (NC) wiring configurations and is suitable for basic alarm systems and security sensor applications in residential and light commercial settings.
Advantages
The KN-CA51 offers a small footprint that allows near-flush installation in narrow frame profiles while maintaining reliable magnetic switching detection. Its side-contact design enables flexible positioning relative to the magnet, and the sensor’s compatibility with NO and NC circuits simplifies integration with a wide range of alarm control panels and wired security setups. The construction is designed for straightforward wiring and mounting, reducing installation time in retrofits and new installations.
Suitable for
 Door contact for home security systems
 Window contact in residential buildings
 Perimeter sensing in light commercial premises
 Basic magnetic detection for alarm panels and control units
Key specifications
 Sensor type: side-contact magnetic reed switch
 Contact modes: normally open (NO) and normally closed (NC) wiring compatible
 Mounting: flush or semi-recessed installation in door/window frames
 Typical use: wired security and alarm input sensor
 Form factor: compact profile suitable for narrow frame gaps
How to use
Install the KN-CA51 into the door or window frame so the side contact faces the mating magnet attached to the moving sash or leaf. Route and connect the sensor wires to the alarm control panel following the required normally open or normally closed configuration for your system. Adjust the magnet position to achieve consistent activation and deactivation across the expected movement range. Ensure the sensor body is secured and any cable entries are protected against mechanical strain or moisture as required by the installation environment.
Usage recommendations
For reliable operation, test the sensor after mounting to confirm proper alignment with the magnet and stable switching across the full opening and closing movement. Use the sensor in dry, protected locations or provide appropriate sealing where exposure to moisture or dust is possible. Match the contact mode (NO/NC) to your alarm panel’s monitoring scheme and adhere to local wiring standards when routing cables and terminating connections.

## FAQ

### How much does the Reed switch sensor No name KN-CA51 cost, and is it available for purchase?

The price is 7.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 84 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 08.07.2026 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/11959449/67404831_large.webp