BRAND: Centurion

Centurion G-Ultra Mobile Based Access Control and Monitoring Solution

G-Ultra Mobile Based Access Control


The G-SPEAK ULTRA promotes the ultimate in convenience and peace of mind by combining wireless GSM technology with Centurion Systems’ futuristic and stylish ULTRA interface.Infused with the DNA of innovation, the G-SPEAK ULTRA allows wireless communication between the user and the intercom gate station, effectively turning the user’s phone into the intercom handset.


  • Supply Voltage Range : 11-24VDC
  • Maximum Current Draw : 300mA @ 12VDC
  • Input / Output Current Rating : 50mA (Open Collector)
  • Relay Contact Current Rating : 1A, 30V AC/DC (Resistive)
  • Input Sense Voltage Range : 0-24VDC (0-1.6V Low Input State, 5V-24V High Input State)

SIM Card

  • Micro Format, Activated MTN® SIM Card
  • Supplied. 1, 2
  • NOTE: The supplied SIM Card may only be used with this specific G-ULTRA device. The SIM Card will be deactivated and blacklisted upon insertion into any other GSM device.
  • Number of configurable Input /
    • Output Channels 4
    • Number of Relays 2

Memory Capacity

  • 1500 Access numbers
  • 5000 Event logs
  • 20 Access Profiles
  • 1 Custom Welcoming SMS Message for

New Access Numbers

  • 20 Custom Output Activation SMS Messages (From User to Device)
  • 30 Custom Input Notification SMS/Email Messages (From Device to User)
  • 100 Visitor Time-barring Windows (Windows are the periods between two dates)
  • 30 Generic Time-barring Windows (Windows are weekly recurring)
  • 10 Output Activation Schedules (Schedules are weekly recurring)
  • 3 Daylight Saving Periods
  • 4 Input to Output Mapping

Additional Information

Device Access Control
Type G-Ultra | Mobile Based