Door and Window Contact Sensors

Name: ACS Systems
Address: 24 Viceroy Rd #11, Concord, ON, L4K 2L9, CA
Telephone: +1-888-833-6597
Price range: $$

Monitor key entry points with sensors that show when doors, windows, gates, or restricted areas open or close.

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Contact Sensors for Access Monitoring

Door and window contact sensors help you keep track of the access points that matter most in your building.

These sensors show when a door, window, gate, cabinet, or restricted area has been opened or left unsecured. They can support alarms, access control systems, cameras, and building monitoring systems, depending on how your property is set up.

ACS Systems installs contact sensors for offices, warehouses, commercial units, service rooms, storage areas, mechanical rooms, and shared building entrances. The goal is simple: know when an opening changes status, so you can respond faster and manage access with more confidence.

Understanding Your Contact Sensor System

A contact sensor uses two parts: one installed on the door or window, and one installed on the frame. When both parts line up, the system reads the opening as closed. When the door or window opens, the sensor changes state and sends that signal to the connected system.

Contact sensors can be used with:

Door alarm systems
Window monitoring
Access control systems
Security panels
Camera systems
Building automation systems
After-hours monitoring

They work best when the sensor type, wiring, placement, and connected system match how the opening is used every day.

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Where Contact Sensors Improve Building Awareness

Contact sensors are useful anywhere you need to know when an entry point opens, closes, or stays open longer than it should.

They can help monitor front doors, back doors, loading doors, emergency exits, office doors, storage rooms, utility rooms, windows, and shared entrances. This is especially useful for buildings with staff changes, tenant access, deliveries, service contractors, or after-hours activity.

ACS Systems helps identify which openings need monitoring and how those sensors should connect to the rest of your security system.

Check Key Entry Points

Types of Contact Sensors We Install

ACS Systems installs contact sensors for a range of commercial and building security applications.

The right sensor depends on the surface, door type, window type, exposure, wiring access, and the system it connects to. Some openings need standard recessed or surface-mounted sensors. Others may need heavy-duty contacts for overhead doors, exterior doors, gates, or industrial access points.

We install contact sensors for:

Commercial doors
Windows
Overhead doors
Service entrances
Storage rooms
Mechanical rooms
Restricted access areas
Shared building entrances

Plan Sensor Placement

Strengthen Your Building With Reliable Contact Sensors

Know when important doors, windows, and restricted areas open, close, or stay unsecured.

Call Us: +1-888-833-6597

ACS Systems Motion Detection Services

Smoke Detectors

Early warning systems that identify smoke at the first sign of a fire. Installed to provide reliable alerts and support faster, safer response across commercial and multi-residential buildings.

Heat Detectors

Temperature-based sensors designed for areas where smoke detectors may be affected by dust, steam, or fumes. Ideal for kitchens, mechanical rooms, and industrial spaces requiring dependable fire detection.

Water Flood Sensors

Leak and flood detection sensors that alert you the moment water is present. Helps protect mechanical rooms, basements, server rooms, and storage areas from costly damage.

Hi/Low Temperature Sensors

Continuous monitoring for temperature changes that may affect equipment, storage conditions, or mechanical systems. Provides alerts when readings move outside safe ranges.

Door/Window Contact Sensors

Open/close sensors that monitor entry points across your property. Useful for storage rooms, secondary doors, and low-traffic areas where unauthorized access needs to be tracked.

Motion Detectors

Activity-sensing devices that detect movement in hallways, offices, storage rooms, and restricted areas. Supports improved awareness and stronger after-hours security.

Improving Visibility Across Key Entry Points

Contact sensors give building owners and facility teams a clearer picture of what is happening at important access points.

A locked door is only useful if it stays closed when it should. A storage room is only secure if access is controlled and monitored. A back door, loading door, or service entrance can become a weak point when it is propped open, used after hours, or overlooked during daily operations.

ACS Systems can review your property and identify which doors, windows, and restricted areas need contact monitoring. From there, we can connect the sensors to the right system so your team has better visibility and fewer blind spots.

Secure Your Space Today! Contact ACS Systems for Custom Security Solutions Tailored to Your Needs. +1-888-833-6597