---
product_id: 8938632
title: "Seco-Larm SM-226L-3Q Overhead Door Magnetic Contact, 2.75-inch Gap, Open/Closed Loop Circuits (3 Wires), 24\" Armored Wire Leads, Weatherproof"
brand: "seco-larm"
price: "34374CFA"
currency: XOF
in_stock: true
url: https://www.desertcart.sn/products/8938632-seco-larm-sm-226l-3q-overhead-door-magnetic-contact-2
store_origin: SN
region: Senegal
---

# Durable under heavy vehicle pressure Designed for large doors & gates Powerful magnet for secure contact Seco-Larm SM-226L-3Q Overhead Door Magnetic Contact, 2.75-inch Gap, Open/Closed Loop Circuits (3 Wires), 24" Armored Wire Leads, Weatherproof

**Brand:** seco-larm
**Price:** 34374CFA
**Availability:** ✅ In Stock

## Summary

> 🛡️ Seco-Larm: The heavy-duty guardian your doors deserve

## Quick Answers

- **What is this?** Seco-Larm SM-226L-3Q Overhead Door Magnetic Contact, 2.75-inch Gap, Open/Closed Loop Circuits (3 Wires), 24" Armored Wire Leads, Weatherproof by seco-larm
- **How much does it cost?** 34374CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/8938632-seco-larm-sm-226l-3q-overhead-door-magnetic-contact-2)

## 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

- • **Versatile Mounting:** L-shaped bracket and door mount design for seamless installation on large doors and gates.
- • **Optimized Dimensions:** Compact 9 x 5.5 x 2 inches size fits large doors without bulk or compromise.
- • **Unmatched Durability:** Withstands heavy vehicle pressure without damage—built tough for high-traffic entryways.
- • **Premium Build Quality:** Gray ABS case with aluminum material for long-lasting performance and weather resistance.
- • **Reliable Contact Switch:** NO/NC contact switch ensures precise security monitoring and flexible integration.

## Overview

Seco-Larm is a robust door magnet sensor housed in a gray ABS case with an L-shaped bracket, engineered for large doors and gates. Featuring a NO/NC contact switch and aluminum construction, it withstands heavy vehicle pressure, ensuring reliable security and durability in demanding environments.

## Description

The Seco-Larm Enforcer Overhead Door-Mount Magnetic Contact, NO/NC is a contact switch designed for large doors and gates where regular contacts may be difficult to mount. The contact’s large gap allows use with even the largest doors, such as garage doors. The switch is contained in low-profile cast aluminum housing, and curved so that heavy vehicles can cross over without damaging it.NO/NC contact switchUse on large doors or gatesMagnet in gray ABS case mounted on L-shaped bracket24-inch wire leads enclosed in stainless-steel cableRugged, Long-Lasting ConstructionSeco-Larm contacts have a unique rhodium plating which has gone through a special oxygen treatment to deactivate the surface, thus eliminating the absorption of organic impurities, polymer growth during operation, and the possibility of contact freezing.The switch is housed in weatherproof die-cast aluminum constructed for surface-mounting on a garage floor. It can withstand heavy vehicle pressure without damage. The switch is safely enclosed in an epoxy compound, and a 24-inch flexible stainless-steel cable gives complete protection to the switch wiring.The magnet is housed in a high-impact weatherproof ABS plastic case and can be mounted on a garage door with an "L"-shaped bracket, which minimizes the effect of steel doors on magnets.Technical DetailsMPN: SM-226L-3QUPC: 676544006473Alarm circuit: Three-wire N.O./N.C. Contact for either closed or open circuit alarm systemsReed switch: Gold under-plating with deactivated rhodium outer-platingSwitch housing: Weatherproof die-cast aluminumMagnet: Extra-strength Alnico 5Wire: 24 inches (61 cm), stainless-steel enclosureContact lifetime: 50 million cyclesRating: 0.02Amp./100VDC (max.), 0.2Amp./10VDC (max.), 3W (max.)Temperature: -15 to 160 °F (-25 to 70 °C)Dimensions: 4-3/8 x 1-3/4 x 7/16 inches (111 x 44 x 11 mm)Gap: 2-3/4 inches (70 mm)Listings: UL, RoHS

## 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

- **Color:** Gray
- **Brand:** Seco-Larm
- **Material:** Aluminum
- **Item dimensions L x W x H:** 9 x 5.5 x 2 inches
- **Finish Type:** Unfinished

## Images

![Seco-Larm SM-226L-3Q Overhead Door Magnetic Contact, 2.75-inch Gap, Open/Closed Loop Circuits (3 Wires), 24" Armored Wire Leads, Weatherproof - Image 1](https://m.media-amazon.com/images/I/41d93LTq96L.jpg)
![Seco-Larm SM-226L-3Q Overhead Door Magnetic Contact, 2.75-inch Gap, Open/Closed Loop Circuits (3 Wires), 24" Armored Wire Leads, Weatherproof - Image 2](https://m.media-amazon.com/images/I/41+COdF219L.jpg)

## 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.sn/products/8938632-seco-larm-sm-226l-3q-overhead-door-magnetic-contact-2](https://www.desertcart.sn/products/8938632-seco-larm-sm-226l-3q-overhead-door-magnetic-contact-2)

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-01-24*