---
product_id: 306131612
title: "SECO-LARM SM-226L-3Q Overhead Door Alarm Switch NC/NO Contact"
brand: "seco-larm"
price: "27184 Ft"
currency: HUF
in_stock: true
url: https://www.desertcart.hu/products/306131612-seco-larm-sm-226l-3q-overhead-door-alarm-switch-nc
store_origin: HU
region: Hungary
---

# 70mm gap tolerance for flexible installation NO/NC contact switch for versatile security Durable cast aluminum housing withstands heavy vehicles SECO-LARM SM-226L-3Q Overhead Door Alarm Switch NC/NO Contact

**Brand:** seco-larm
**Price:** 27184 Ft
**Availability:** ✅ In Stock

## Summary

> 🔐 Secure your space with the toughest door alarm switch on the block!

## Quick Answers

- **What is this?** SECO-LARM SM-226L-3Q Overhead Door Alarm Switch NC/NO Contact by seco-larm
- **How much does it cost?** 27184 Ft with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/306131612-seco-larm-sm-226l-3q-overhead-door-alarm-switch-nc)

## Best For

- seco-larm enthusiasts

## Why This Product

- Trusted seco-larm brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Robust Build Quality:** Magnet encased in gray ABS on L-shaped bracket ensures reliable performance
- • **Unmatched Durability:** Cast aluminum housing endures heavy vehicle pressure without damage
- • **Seamless Installation:** 70mm gap tolerance fits large garage doors and gates effortlessly
- • **Premium Cable Protection:** 24-inch stainless-steel cable leads resist wear and environmental damage
- • **Flexible Security Options:** NO/NC contact switch adapts to your specific alarm system needs

## Overview

The SECO-LARM SM-226L-3Q is a heavy-duty overhead door alarm switch featuring a low-profile cast aluminum housing designed to withstand heavy vehicle traffic. It offers versatile NO/NC contact options, a 70mm gap tolerance for large doors or gates, and durable components including a magnet in a gray ABS case and stainless-steel cable leads, ensuring reliable security and long-lasting performance.

## Description

SECO-LARM SM-226L-3Q Overhead Door Alarm Switch NC/NO Contact

## Features

- Magnet in gray ABS case mounted on L-shaped bracket
- Use on large doors (garage) or gates
- NO/NC contact switch
- Withstands heavy vehicle pressure without damage

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Unit Count | 1 Count |
| Item Depth | 9 inches |
| Item Dimensions | 9 x 5.5 x 2 inches |
| Color | Gray |
| Mounting Type | Door Mount |
| Material Type | Aluminum |

## Product Details

- **Colour:** Silver
- **Brand:** Seco-Larm
- **Material:** Aluminum
- **Item dimensions L x W x H:** 22.9 x 14 x 5.1 centimeters
- **Finish type:** Grey

## Images

![SECO-LARM SM-226L-3Q Overhead Door Alarm Switch NC/NO Contact - Image 1](https://m.media-amazon.com/images/I/41Q--bx6bhL.jpg)
![SECO-LARM SM-226L-3Q Overhead Door Alarm Switch NC/NO Contact - Image 2](https://m.media-amazon.com/images/I/41bicHUvjgL.jpg)

## Available Options

This product comes in different **Size** options.

## Frequently Bought Together

- Seco-Larm SM-226L-3Q Overhead Door Magnetic Contact, 2.75-inch Gap, Open/Closed Loop Circuits (3 Wires), 24" Armored Wire Leads, Weatherproof
- Seco-Larm SM-4601-L3Q Industrial Wide-Gap Magnetic Contact Switches, 3" Operation Gap NO/NC, Open/Closed Loop (3 Wires)
- Seco-Larm SM-4201-LQ Track-Mount Overhead Door Magnetic Contact Switch, Rugged Aluminum Housing, 36" Wire Leads, for Closed Loop Circuits, 3" Gap, Weatherproof, Mounting Bracket Included

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**Shop now:** [https://www.desertcart.hu/products/306131612-seco-larm-sm-226l-3q-overhead-door-alarm-switch-nc](https://www.desertcart.hu/products/306131612-seco-larm-sm-226l-3q-overhead-door-alarm-switch-nc)

---

*Product available on Desertcart Hungary*
*Store origin: HU*
*Last updated: 2026-01-28*