Automatic gates are an increasingly popular feature for homes and businesses across Scotland, providing both security and convenience. But while much focus is placed on the gate itself, the unsung heroes behind smooth, hands-free operation are the automatic sensors.
Whether you’re wondering how gate exit sensors work, what causes them to malfunction, or what can trigger an automatic gate to open, this guide will walk you through the essentials. Read on to learn how sensor technology supports the safety and efficiency of your electric gate system.
How Do Gate Exit Sensors Work?
Exit sensors, sometimes called vehicle loop detectors or ground loops, are designed to automatically open your gate when a vehicle is leaving the property. These sensors typically involve a wire loop embedded beneath the driveway near the gate. Here’s how they work:
1. Detection Loop Installation – A durable loop of wire is laid beneath the surface of your drive, often during the installation phase or retrofitted later.
2. Magnetic Field Disturbance – When a vehicle approaches the gate from inside the property, its metal mass disrupts the loop’s magnetic field.
3. Signal Transmission – This disruption is picked up by a sensor unit connected to your gate’s control panel, which then sends the signal to open the gate automatically.
4. Timed or Manual Closure – Once the vehicle exits, the gate can be programmed to close after a set delay or remain open for further use.
At A1 Automatic Gates, we install high-reliability sensor systems throughout Glasgow, Edinburgh, and across Scotland, ensuring seamless exit functionality even in tough weather conditions.
Why Is My Automatic Gate Sensor Not Working?
If your gate doesn’t open as expected when leaving the property, there may be an issue with the exit sensor. Common causes include:
• Electrical Faults – Damaged wires or a faulty control box can disrupt the signal.
• Obstructions – Debris, waterlogging, or even tree roots can interfere with buried sensor loops.
• Sensor Misalignment – If the sensor or loop is not correctly aligned, it may fail to detect vehicles accurately.
• Power Supply Issues – A power cut or surge can reset or damage the sensor system.
• Environmental Wear – Over time, weather exposure and wear can degrade components, especially if the installation wasn’t weatherproofed correctly.
Our experienced team can quickly diagnose sensor issues and recommend a cost-effective repair or upgrade. Regular maintenance is key to keeping your gate and sensors running smoothly year-round.
What Triggers an Automatic Gate to Open?
Automatic gates can be triggered in several ways, depending on the access system you’ve chosen. While exit sensors are one option, you can also opt for:
• Remote Controls – The classic method, allowing you to open your gate from your vehicle or home.
• Keypads and Code Entry – Ideal for regular visitors or staff, providing secure access without needing a physical device.
• Intercom Systems – Speak to guests before granting access—ideal for residential and commercial properties alike.
• Smartphone Access – Many modern systems allow you to control gates via an app, useful for deliveries or family access while you’re away.
• Proximity Sensors and RFID Tags – These detect authorised vehicles or tags to trigger the gate as you approach.
With A1, you’ll have access to the latest control options, fully tailored to suit your property’s layout and your daily routine.
Trust A1 for Reliable Gate Automation
From sensor-driven entry systems to full gate automation, A1 Automatic Gates has been helping clients across Glasgow, Edinburgh, and wider Scotland secure and modernise their entrances. All our gates are fabricated in-house and built to withstand the Scottish climate.
We install, repair, and maintain everything from access control systems to automatic gate sensors—providing dependable service from start to finish.
Book Your Free Consultation Today
If you’re experiencing sensor issues or are looking to upgrade to a smart exit system, contact A1 Automatic Gates. We offer expert guidance and solutions tailored to your needs.
• Glasgow: 0141 413 5320
• Edinburgh: 0131 341 4390
• Email: info@a1automaticgates.co.uk
Let us help you achieve a safer, smarter, and more convenient gateway to your property.