# Reed Switch (Kontakttron) Alarmtech MC440 — surface magnetic contact for doors/windows, normally closed

**URL:** https://aio.lv/en/product--alarmtech-mc440--11960069
**Data updated:** 2026-03-12 10:21 (EET)
**Category:** Sensors & Detectors
**Manufacturer:** Alarmtech
**Manufacturer code:** MC440
**EAN:** 5901508451460
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 14.99 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 12.39 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--alarmtech-mc440--11960069

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.07.2026 | free |
| Pickup points | 08.07.2026 | 1.99 EUR |
| Courier delivery to door | 08.07.2026 | 4.99 EUR |

## Summary description

Alarmtech MC440 is a reed switch (kontakttron) magnetic contact intended for surface mounting on doors and windows. Provided as a normally closed magnetic contact, it monitors open/close state and integrates with alarm control panels. Typical use cases include perimeter security for homes, offices, and retail spaces where simple wired magnetic detection is required.

## Long description

Alarmtech KONTAKTRON BOCZNY MC440 ALARMTECH is a magnetic contact sensor designed for monitoring the open/closed status of doors and windows. The compact two-part sensor consists of a reed switch and a magnet; when the magnet moves away from the sensor body, the circuit opens and the device registers a contact break. The model is intended for integration with alarm systems and security control panels that accept wired magnetic contacts.
Advantages
The contact offers a simple and reliable method for detecting entry points without moving parts that require frequent maintenance. Its small form factor allows installation on narrow frames and slim profiles. The device provides immediate, discrete status change detection when fitted correctly and is compatible with a wide range of wired alarm inputs used in residential and commercial systems.
Suitable for
Monitoring doors and windows in homes
Securing cabinets and service hatches
Use in small businesses and offices for perimeter detection
Retrofit applications on existing wired alarm panels
Key specifications
Type: Wired magnetic contact (reed switch and magnet)
Mounting: Surface-mounted on frames and sashes
Design: Two-part compact enclosure for narrow installation gaps
Operating principle: Contact closes when magnet is adjacent; opens when separated
How to use
Install the reed switch part on the fixed frame and the magnet on the moving sash so that when the door or window is closed the two parts align within the recommended gap. Connect the sensor leads to the alarm panel input according to the control panel wiring diagram, observing polarity if required. Test the contact by opening and closing the door or window and verifying signal detection on the alarm system to ensure proper alignment and secure electrical connection.
Usage recommendations
Place the sensor where the magnet and switch meet reliably when closed and avoid locations with excessive moisture or direct exposure to the elements. For best results, follow the alarm system manufacturer's wiring and input supervision guidelines and perform periodic checks to confirm the contact operates correctly.

## FAQ

### How much does the Reed switch Alarmtech MC440 cost, and is it available for purchase?

The price is 14.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 42 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 03.07.2026 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 Alarmtech 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 Alarmtech 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/11960069/67405497_large.webp