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Centurion G-ULTRA Module

Centurion G-ULTRA Module

R 3,495.00 R 3,995.00

G-ULTRA – The ultimate GSM solution

With the G-ULTRA, your entire world fits into the palm of your hand, giving you complete control at your fingertips. This is the evolution of GSM technology, designed to offer you the ultimate flexible, mobile-based access control and monitoring solution and allowing you to transcend archaic notions of what GSM can achieve. Unbridled. Unchained. Unmatched. Ultra. 



Password protection means that no one else can control your G-ULTRA. Passwords can be changed as often as necessary so your security is never compromised, and only numbers that have been learned into the G-ULTRA are able to operate it. Effortlessly enable and disable your G-ULTRA devices, or suspend access numbers, for maximum security, either via SMS or using CENTURION’s secure and convenient G-WEB PLUS web interface.

Security, meet convenience

For even more security, flexibility and control, use the built-in Weekly and Visitor Access Modes to control access right down to the minute!

Timed Access Control:

(Weekly and Visitor) Set arrival and departure dates and times; guests will only be able to activate the device’s outputs between these limits, giving you maximum security and affording your guests maximum convenience.

Monitoring and alerting

The G-ULTRA looks after your property when you’re not around. It can be configured to monitor up to four separate electrical devices, such as your home alarm or even a water reservoir. It could send you an SMS, give you a missed call or even send you an email, letting you know if your alarm is on or off or your reservoir is full or empty. When configured as inputs, the unit’s four individually-configurable channels can be configured to react to Rising Edges, Falling Edges, or both, which makes it ideal for monitoring variable levels such as mains power. A single input can be used, for example, to send a notification to users when mains power has failed, and the same input can notify users once it comes back on, freeing up the other inputs to take care of monitoring duties for other devices.

Intelligent monitoring of gate status

With the G-ULTRA, your peace of mind is not dependent on physical proximity, and the rules of physics can be bent so that it’s almost like you’re two places at once. With seamless integration with CENTURION gate motors, your G-ULTRA will let you know when your gate has been left open, or is in any other state specified by you through intelligent monitoring of the gate motor’s status output. Adjustable Filter settings mean that you can specify under which conditions you are notified about a particular gate status, for example, if the gate has remained open for longer than 20 seconds.

Access Number Profiles

The access number configuration profiles eliminates the hassle of configuring inputs and outputs and permissions every time that a new number is added.

We’ve done the hard work for you!

All G-ULTRA units are supplied with an activated Vodacom SIM card (SA only)

Remote administration with G-WEB PLUS

The only thing easier than using the G-ULTRA is administering it. Our intuitive G-WEB PLUS website lets you configure, monitor and receive reports online. G-WEB PLUS provides a great-looking, user-friendly and easy-to-navigate interface, enabling you to change multiple settings using a single synchronisation versus multiple SMS commands. The online portal helps you keep track of settings, access numbers and transaction logs and further expands the Ultra Universe with heaps of fantastic features developed to make your G-ULTRA really come alive.

Battery voltage monitoring and Battery Saver Mode

Avoid being left out in the cold with the G-ULTRA’s reliable battery monitoring facility. Your module will monitor its power source as closely as you monitor your daughter’s new boyfriend, and send you an SMS notification if the voltage falls too low as well as shutting down to conserve battery life and prevent the battery from being damaged.

Smart hardware

An internal GSM antenna ensures healthier, more reliable network signal strength without the frustration of trying to find the optimal location to mount the unit. If you need to fit the G-ULTRA in a metal enclosure, simply attach an external antenna to the onboard connector.


G-WEB PLUS is a unique offering from Centurion Systems that allows you to set up and monitor your G-ULTRA devices via the Centurion Systems website. That means you don’t even have to waste precious time and petrol going to site – all G-ULTRA administration can be done from the comfort of your home or office!

All-important security


Devices that can be monitored via the inputs

  • House alarm: activated
  • Electric fence: alarm triggered
  • Geyser status: On/Off
  • Mains power: On/Off
  • Fridge aboard your boat: On/Off
  • Borehole pump status: Running/Off
  • Water reservoir: Full/Empty
  • Entrance gate status: Open/Pedestrian
  • Vehicle monitoring: Ignition or alarm activated, or off or your reservoir is full or empty

Devices that can be controlled via the outputs

  • Automated entrance gates
  • Geysers
  • Appliances, e.g. the fridge aboard your boat
  • Air conditioners
  • Borehole pumps
  • Disable vehicle ignition systems
  • Lighting systems
  • Irrigation and water features
  • Alarm systems

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