10 Best Wired Window Alarm Sensors

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This guide reviews 10 wired window alarm sensors, most of which work equally as well for doors. I’ve also included a few security sensors for overhead door types due to requests. My short introduction here explains how these sensors work and the things to consider before you buy anything. Jump to the reviews if you’re familiar with security sensors and only want to check out the current options.

INTELLid Window Sensors
Material: ABS
Weight: 0.8 oz.
This works with all alarms and ACS.
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Best Value
SECO-LARM Overhead Sensor
Material: Aluminum
Weight: 8.8 oz.
It has a low-profile overhead sensor.
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Top Pick
KERUI Siron Contact Sensors
Material: Mixed
Weight: 32 oz.
Fully-programmed system and expandable.
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How Window & Door Sensors Work

Wired window alarm sensors work with something called a reed switch (contact) and a magnet. The switch and magnet are two separate parts. The reed switch attaches to the window frame and the magnet to the pane. The window is in shut status when the magnet is closest to the switch. An open window pulls the magnet away from its switch, and the status changes to open. That’s it.

The closer the reed switch is to the magnet, the better. It’s most effective at around the 1” mark, but the maker’s instructions will give specifics. Wired window and door sensors are simple DIY projects that usually take a few minutes to fit (not including the wiring). They’re cheap, reliable, and effective. It makes sense to use window sensors on all the vulnerable intrusion points around the home.

How to Install a Window Sensor

Many window sensors come with double-sided tape for easy installation. Make sure the surfaces are clean before applying either piece. Proper alignment is vital, so it’s necessary to follow the maker’s instructions. Most of these gadgets—though not all—have visible markers to make correct placement foolproof. The only downside to wired sensors is that they need connecting to a central control panel.

A lot of people still prefer wired security systems despite the inconvenience. That’s because they’re more reliable and there’s less that can go wrong. Okay, they’re not as flexible as wireless setups, and there may be restrictions on where you can go with them. Even so, a decent wired security alarm arrangement is easy to maintain and should last for many years. It’s also less susceptible to hacking.

About My ‘Wired Window Alarm Sensors’ Guide

There are 10 affordable products listed below. The reason for these mini-reviews is to give a bit more information on the products than the sales pages offer. Window and door sensors are simple gadgets, and most do precisely what they’re supposed to. These products should all work with modern Access Control Systems (ACS) and Burglar Alarms.

Wired Window Alarm Sensors Comparison Table

1. INTELLid 1 Pcs Wired Window Sensors | Best Budget

INTELLid 1 Pcs Wired Window SensorsView on Amazon

Editor’s Rating: 4.5/5

The Best Budget wired window and door sensor goes to the INTELLid contact position switch. It works with most burglar alarm types and Access Control Systems (ACS).

INTELLid Wired Door Sensors Highlights

This ABS surface-mount sensor is simple to install and reliable. It uses a built-in magnetic reed system that reports closed status at around 3/4” Thus, open window status is greater than 3/4″. That’s when the sensor notifies the ACS or burglar alarm, which then reacts according to your setup. Likewise, the sensor reports when its status returns to closed.

There are not any product dimensions on the page, only the package. That’s an issue if you need the sensor to match any existing ones so that it doesn’t stand out. The unit tends to be on the larger size of average. Be sure to contact the seller if you need the product’s exact dimensions.

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Tech Specs
Brand: INTELLid
Color: Off-white
Cable Length: Approx. 18
Contact Type: Window and door
Material: ABS
Package Dimensions: 5.8 x 1.5 x 0.7”
Product Weight: 0.8 oz.
The Pros
Works with all alarms and ACS
Easy to install
Cheap and reliable
Well-made product
The Cons
No product dimensions
No double-sided tape included

2. SECO-LARM Overhead Door Sensor | Best Value

SECO-LARM Overhead Door SensorView on Amazon

Editor’s Rating: 4.8/5

Our Best Value pick goes to the SM-226L-3Q Seco-Larm, which is an overhead magnetic door sensor. It’s a low-profile, heavy-duty switch encased in a rugged aluminum cover.

SECO-LARM Door Sensor Highlights

Consider the SM-226L-3Q if you need a product that can take heavy vehicles running over it. The magnet is encased in heavy-duty ABS on an L-shaped bracket. Stainless steel cable encases the wire leads for ultimate protection. It’s the superior build-quality that makes this alarm sensor quite pricey compared to others. It should last for many years when properly mounted.

It’s also worth noting that SECO-LARM’s overhead garage door sensor supports both systems. That is, Normally Open (NO) and Normally Closed (NC).

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Tech Specs
Color: Silver
Contact Type: Magnetic
Material: Stainless steel/ aluminum
Product Dimensions: 9 x 5.5 x 2”
Product Weight: 8.8 oz.
The Pros
Low-profile overhead sensor
Heavy-duty design
All-metal protection
Withstands heavy vehicles
Stainless steel cable cover
Supports Normally Open/Closed
The Cons

3. KERUI Siren W/ Window/Door Sensors | Top Pick

KERUI Siren W/ Window/Door SensorsView on Amazon

Editor’s Rating: 4.6/5

The top pick goes to a comprehensive alarm kit that includes three window alarm sensors and a 110dB horn. It’s a highly-affordable setup that only takes a little basic DIY to install.

KERUI Siren W/ Door Sensor Highlights

A 23A 12V battery is all it takes to power the KERUI Siren burglar alarm system. Its 3 window/door sensors come equipped with sticky pads for quick and easy fitting. The only wiring comes with the small horn, but the rest of this kit is a wireless setup. Some users may need to extend the horn’s cable, though, as it’s quite short. The box also contains 2 remotes and a PIR motion sensor.

This system is expandable up to 30 window/door sensors despite its low cost. You can also add up to 4 doorbells and 8 remotes if needed. The alarm activates once a window opens to 0.03” (1mm). The only negative is that the alarm is not very loud with a single siren setup.

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Tech Specs
Brand: KERUI
Product Color: Black & white
Alarm Type: 110dB mini horn
Battery (Window Sensor): 23A 12V
Battery (Remote): 23A 12V
Max Sensor Range: 230ft (70m)
Product Dimensions: 6 x 6 x 3.5”
Product Weight: 32 oz.
The Pros
Fast, easy set up
3 window/door sensors
Fully-programmed system
110db horn alarm
2 remotes (include SOS buttons)
Excellent value
The Cons
Horn not very loud
Short wire

4. YXQ MC 32 Window/Door Magnetic Sensor Switch

YXQ MC 32 Window/Door Magnetic Sensor SwitchView on Amazon

Editor’s Rating: 4/5

You can have three YXQ Door Window Magnetic Sensor Switches for only a few dollars. They might be cheap, but they do the job as promised in the product description.

YXQ MC 32 Window/Door Sensor Highlights

These are neat compact devices with a fast response. This product is super-easy to use and makes an excellent replacement for faulty window and door switches. They trip at around the 1/2″ mark from the magnetic contact. The only gripe is that the wire’s a little on the short side.

It’s worth noting that there has been some misinformation on the Normally Open (NO) and Normally Closed (NC) status in the ad. Be sure to check which it is prior to purchase and again when wiring.

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Tech Specs
Brand: YXQ
Color: White
Cable Length: 9.8
Contact Type: Magnetic
Material: Plastic
Product Dimensions: 2.52′ x 0.5 x 0.5”
Product Weight: 1.69 oz.
The Pros
Affordable and effective
Versatile replacement switch
Neat and compact design
Fast response
The Cons
Wire a little short
NO/NC status confusion
Average quality

5. Yohii Home Wired Rolling Magnetic Switch

Yohii Home Wired Rolling Magnetic SwitchView on Amazon

Editor’s Rating: 4.3/5

Consider this inexpensive product if you need a rugged magnetic switch for windows and doors. It’s straightforward to fit and does an excellent job of securing homes and other properties.

Yohii Home Rolling Door Sensor Highlights

Yohii’s rolling NC magnetic switch alarm has a rust-resistant housing made from premium zinc alloy. You can use it to secure windows and doors, including garage and shutter-types. It’s an ideal screw-mounted replacement for the more fragile plastic switches that are vulnerable to damage. The electrical reed switch is reliable and works by the traditional magnetic field arrangement.

The industrial appearance and screw fit make the switch ideal for garages and sheds, etc. You can use it anywhere, of course. It’s just that white plastic tends to be more aesthetically pleasing in homes.

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Tech Specs
Brand: Yohii
Color: Silver
Cable Length: 17”
Contact Type: Electrical magnetic
Electrical State: Normally closed
Material: Zinc alloy
Product Dimensions: 6 x 5.8 x 0.5”
Product Weight: 5.6 oz.
The Pros
Affordable and rugged switch
Zinc alloy housing
Easy to fit, includes screws
Ideal for windows and doors
Compatible with shutter doors
Excellent value
The Cons
Industrial-look better suited for garages, sheds, and businesses.

6. Gufastore 10pcs Wired Window/Door Sensors

Gufastore 10pcs Wired Window/Door SensorsView on Amazon

Editor’s Rating: 4.4/5

Gufastore offers its 10pcs Surface magnetic window and door switch pack for less than 15 dollars. The units are quick to install and work seamlessly with existing burglar alarm systems.

Gufastore Wired Window Sensors Highlights

These are excellent quality magnetic induction switches. They will serve you well if you want to replace older, worn-out sensors or secure any new window installations. The switches are well-made and should last for many years once fitted and wired. It’s worth buying the ten pack even if you don’t need them all. They’re certainly cheap, and it’s always useful to have some matching spares to hand.

The only downside for windows is the size of these switches. Most people prefer smaller, more discrete designs for home use. It’s less of an issue with commercial property, sheds, and garages.

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Tech Specs
Brand: Gufastore
Color: White
Contact Type: Magnetic
Contact Capacity: 0.5A
Rated Power: 10W
Electrical State: Normally closed
Material: ABS
Dimensions: 2.5 x 0.75 x 0.51”
Product Weight: 4 0z.
The Pros
Affordable 10pcs pack
Well-made product
Quick to install
Includes dual-sided tape
Includes screws
The Cons
Quite large for home windows

7. Uxcell 10pcs Wired Security Door Contact Sensors

Uxcell 10pcs Wired Security Door Contact SensorsView on Amazon

Editor’s Rating: 4.2/5

This product is by Uxcell, and it’s another affordable 10-piece pack. The company’s magnetic reed door switches here boast precise detection and an ultra-sensitive response.

Uxcell Wired Door Contact Sensor Highlights

The RC-36 is a recessed normally closed (NC) wired security window/door switch. They’re made from rugged white ABS thermoplastic material. That means they won’t corrode, and they have a high-temperature resistance. The wired sensors are ideal for metal doors and windows in particular. They are also the right choice if you have a business that uses Commercial Card Access Systems.

The only fault with these switches is that the wires seem unusually thin. That doesn’t affect the functionality of the switches, but skinny wires need extra care when stripping.

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Tech Specs
Brand: Uxcell
Color: White
Cable Length: 9.8”
Contact Type: Magnetic
Material: ABS
Electrical State: Normally closed
Max Current: 0.5A
Max Contact Power: 10W
Working Voltage: DC100V
Dimensions: 5.5 x 3.9 x 0.4”
Product Weight: 6.4 oz.
The Pros
Affordable 10 pcs switch pack
Made from rugged thermoplastic
Sensitive response
Precise detection
Suitable for doors & windows
Ideal for home/commercial use
The Cons
Skinny wires

8. The Wires Zone Recessed Wired Door Sensor

The Wires Zone Recessed Wired Door SensorView on Amazon

Editor’s Rating: 4.1/5

At #8 we have the 10-piece recessed window and door sensor pack from The Wires Zone. The switches work with every alarm type that has hardwired zones.

The Wires Zone Recessed Door Sensor Highlights

These switches are 3/8” magnetic door contacts with small screw terminals for easy wiring. They’re ideal for use with sliding-type windows and doors. Connection takes no time for standard 2-wire alarm setups. There’s no splicing or soldering to do, so you don’t need DIY skills to install them. This pack is perfect for expanding a new alarm system or replacing damaged or worn out sensors.

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Tech Specs
Brand: The Wires Zone
Color: White/black
Contact Type: Magnetic
Electrical State: Normally closed
Material: ABS
Contact Size: 3/8
Product Dimensions: 4 x 3 x 2”
Product Weight (pack): 16 oz.
The Pros
Affordable 10-piece pack
Ideal for sliding windows/doors
Small screw terminals
Easy to install
Works with all 2-wire alarms
The Cons

9. Potter Amseco ODC-59A Overhead Door Sensor

Potter Amseco ODC-59A Overhead Door SensorView on Amazon

Editor’s Rating: 4.7/5

The penultimate product is for the Potter Amseco ODC-59A switch with an adjustable L bracket. It’s primarily for rolling door types, but you can use it anywhere with a little creative imagination.

Potter Amseco Overhead Door Sensor Highlights

It’s worth pointing out that the Potter Amseco ODC-59A has a rugged stainless steel armored cable. That’s essential for use with rolling overhead doors and shutters as it guarantees longevity. The reed switch is hermetically sealed, which means it’s 100% protected and airtight. The operating gap is around 2”. Another thing worth noting is that this product is UL and ULC listed.

The downside is the short wires, and it’s a common complaint with window and door sensors. There can never be “too much” wire since it only takes a nanosecond to cut to length.

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Tech Specs
Brand: Potter / Amseco
Color: White
Cable Length: 24
Cable Type: stainless steel armored
Contact Type: Magnetic
Operating Gap: 2
Horizontal Gap: 7
Material: PVC
Product Dimensions: 8.7 x 4.9 x 1”
Product Weight: 8 oz.
The Pros
Easy to install, versatile product
Rugged, made-to-last switch
Stainless steel armored cable
Hermetically sealed switch
Works with overhead doors and rolling shutters, etc.
UL and ULC listed
Value for money
The Cons
Short wires

10. Honeywell Ademco Overhead Door Contacts

Honeywell Ademco Overhead Door ContactsView on Amazon

Editor’s Rating: 4.4/5

Last on the list is another quality overhead door contact. This one is a 2-pack product sold by Honeywell. Installation is quick and painless thanks to the adjustable magnet and L bracket.

Honeywell Ademco 958 Door Sensor Highlights

The unit is incredibly well-made and should last a lifetime. It’s ideally for use with Honeywell’s own security systems, so check with the seller if you want to use it with another brand. The 958 door contact here operates on an NC or Normally Closed (NC) loop.

Honeywell’s resilient Ademco Door Sensor uses epoxy sealing to protect it from impact and moisture. It’s a solid magnetic switch with a higher price tag than others on this page. That’s because its hardy shock-absorbing design helps to protect the reed from flex. It also keeps the housing safe from wear and accidental damage.

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Tech Specs
Brand: Honeywell
Color: Silver-gray
Cable Length: 24
Cable Type: Armored
Contact Type: Magnetic
Material: Steel
Standard gap: 2-3/8
Product Dimensions: 8 x 6 x 1”
Product Weight: 17.44 oz.
The Pros
2-pack overhead door sensors
Rugged shock-absorbing design
Made to last product
Simple installation
Adjustable magnet w/ L bracket
Armored cable
Moisture and impact protection
The Cons
0/50 ratings