Whether you’re locking up for the night or leaving for the day, activating your alarm should be fast, reliable and stress-free. With Ajax, arming your smart alarm system takes just a tap, no codes, no complexity, and full control from anywhere.
In this guide, we’ll show you the easiest ways to arm your Ajax alarm, from your phone or keypad to the smart SpaceControl remote.
Ready to protect your home or business like a pro? Let’s get started.
🔐 Looking to build your own system? Shop our full Ajax Security Kits now at WME.
🚨 What Does Arming an Ajax Alarm Actually Do?
When you arm your Ajax alarm, you activate your sensors, like:
- MotionProtect (motion detectors)
- DoorProtect (door/window sensors)
- GlassProtect, FireProtect, and more
- Any connected sirens, cameras, or smart devices
Once armed, any unauthorised movement will trigger your configured actions: alerts, sirens, mobile notifications, or even smart lighting.
📲 Method 1: Arm Using the Ajax App (iOS/Android)
The most convenient and popular way to arm your Ajax alarm is through the Ajax Security System app.
Steps:
- Open the Ajax app
- Select your active Hub
- Tap the Arm icon (🔒)
- Done! You’ll hear a beep and see the system status update to Armed
✅ Works from anywhere - arm your alarm from work, holiday, or just before bed.
🎛️ Method 2: Use Ajax KeyPad or KeyPad Plus
Prefer a physical control panel? The Ajax KeyPad and KeyPad Plus give you arm/disarm control at the entrance to your home or building.
How:
- Tap the keypad to activate it
- Enter your personal code or tap an Ajax Pass/Tag
- Press the arm icon (🔒)
- System confirms with LED or sound indicator
💡 Tip: Mount this near the main entrance or hallway for quick access on your way out.
🎮 Method 3: Use Ajax SpaceControl Remote
The Ajax SpaceControl remote puts quick control in your pocket.
- Press the 🔒 arm button
- Great for use from your driveway, car, or even upstairs
- Also includes disarm, night mode and SOS panic button
🛠️ Works up to 1300m away outdoors and 100m indoors.
🛒 Add extra remotes and keypads from the Ajax Security Kits collection.
🌙 Bonus: Activate Night Mode
Want to protect certain areas while still moving freely at night?
Night Mode lets you arm only selected devices, like downstairs sensors, while leaving upstairs areas off.
To enable:
- Open Ajax app
- Go to Devices > Choose sensors
- Set to “Armed in Night Mode”
- Tap 🌙 on app, keypad or remote to activate
✅ Perfect for nighttime security in homes with pets or children.

🧠 Pro Tips to Avoid False Alarms
- Use entry/exit delays (5–60 seconds) to give yourself time to leave
- Enable push reminders to arm the system when you leave home
- Give each family member or staff user their own login, code or tag
- Use Geo-fencing to get arm prompts based on location
Missed the disarming process? Check our guide on how to disarm Ajax alarms here
Method | Tool Required | Range | Best For |
---|---|---|---|
Ajax App | Smartphone | Unlimited (Wi-Fi/4G) | Everyday use, remote access |
KeyPad / KeyPad Plus | Wall-mounted keypad | Local (by front door) | Families, staff, indoor spaces |
SpaceControl Remote | Ajax remote control | Up to 1300m | Car keys, outdoor use, quick arm |
Night Mode | App / Remote / KeyPad | Configurable zones | Bedtime protection |
❓FAQs
Q: Can I arm Ajax from outside the home?
Yes - the app and SpaceControl remote let you arm from anywhere.
Q: What happens if I forget to arm the system?
Set up geo-location reminders, or use scheduling in smart home apps.
Q: Can I arm Ajax if the power or Wi-Fi is down?
Yes - the system runs on battery backup and 4G SIM (with Hub 2 Plus models).
Q: Can I arm only part of the system (e.g. just the garage)?
Yes - use Night Mode or zone-specific arming in the app.
Arming your Ajax alarm system is effortless, secure, and totally customisable, whether you're walking out the door or tucking into bed. With multiple ways to arm, real-time feedback, and smart automation, Ajax keeps you in control of your property’s protection from anywhere.
Ready to build a system that fits your life?
👉 Browse Ajax Security Kits now at WME
📲 Easy to install. Easier to control. Only from WME.