Call us:

(800)-223-4534


HomeNavigation ArrowShop By BrandNavigation ArrowSeco LarmNavigation ArrowIntrusion Navigation ArrowAlarm Contacts & SensorsNavigation ArrowSeco Larm - Overhead Door Magnetic Contact, 2-3/4? (70mm) Gap, Open/closed Loop (3 Wires)

Seco Larm - Overhead Door Magnetic Contact, 2-3/4? (70mm) Gap, Open/Closed loop (3 Wires)

SKU: SM-226L-3QMFR SKU: SM-226L-3QBy: Seco Larm
Navigation ArrowShare
default.jpg
Image 2
Seco Larm - Overhead Door Magnetic Contact, 2-3/4? (70mm) Gap, Open/Closed loop (3 Wires)
Zoom inZoom OutFull Screen
Pro Edge
Access pro pricing, Sign up for for PRO-EDGE
check

In stock

Retail price:

$22.23

Product DescriptionThe Seco Larm SM 226L 3Q magnetic contact is a heavy duty overhead door sensor designed for reliable protection in commercial and industrial applications. It features a wide 2.75 inch sensing gap that allows accurate detection even on large or uneven door surfaces. The contact supports both open and closed loop wiring through its three wire configuration, providing flexibility for different alarm systems. Built with a rugged cast aluminum switch housing and a durable ABS magnet enclosure, it offers long lasting performance and resistance to impact and environmental factors. The unit is sealed for moisture protection, making it suitable for warehouses, garages, and loading dock areas. With its simple installation and dependable operation, the Seco Larm SM 226L 3Q ensures precise door monitoring and professional level security integration.
SIMILAR PRODUCTS
TANE - Contact Heavy Duty Metal 2" Gap

TANE - Contact Heavy Duty Metal 2" Gap

SKU: TANE-86MINI | MFR: TANE-86 MINI-18

By: Tane Alarm Products
check

In stock soon

Expected by Jun 30, 2026.

Retail price:

$22.89

Seco Larm - Magnetic Door Holder Surface M' W/Backbo

Seco Larm - Magnetic Door Holder Surface M' W/Backbo

SKU: DH-151SQ | MFR: DH-151SQ

By: Seco Larm
check

In stock

Retail price:

$68.93

Seco Larm - Magnetic Lock 600 LBS

Seco Larm - Magnetic Lock 600 LBS

SKU: E-941SA-600 | MFR: E-941SA-600

By: Seco Larm
check

In stock

Retail price:

$94.64

Seco Larm - Magnetic Door Holder Flush

Seco Larm - Magnetic Door Holder Flush

SKU: DH-171SQ | MFR: DH-171SQ

By: Seco Larm
check

In stock soon

Expected by Jul 3, 2026.

Retail price:

$61.00

Why the Pros Choose to Partner with Us
Never Pay RetailNever Pay Retail
We Believe Pro Installers Should Never Pay Retail!
We are fully stockedWe are fully stocked
Fully Stocked Inventory to Power Your Projects from Start to Finish.
Free ShippingFree Shipping
Pros Get Free Shipping on Orders Over $500*Some exclusions apply for oversized items such as cabinets.
Technical SupportTechnical Support
Expert Support Before and After Your Purchase
Have Questions?
Get help from our experts
Our knowledgeable team is ready to answer any questions you may have and offer professional solutions tailored to your specific requirements.