PRODUCT INFORMATION
G-ULTRA: Total Control at Your Fingertips
The G-ULTRA GSM Device gives you complete remote control and monitoring over your most important systems—whether it’s your gate, garage door, lights, or even irrigation system. With the power of GSM technology, you can operate and check the status of connected devices from your mobile phone using the MyCentsys Remote mobile app, no matter where you are in the world.
The Metal Gate Station is the perfect complement to the G-SPEAK ULTRA GSM Intercom System, offering a sleek, modern design combined with durability and enhanced security. Whether for a residential entrance or a commercial property with multiple users, this intercom station provides seamless communication and reliable access control.
Application: For use with the G-Speak ULTRA GSM intercom system. Options available with one, two and four call button configurations.
What Can the G-ULTRA Do for You?
Remote Activation
Open your gate or garage door, turn on lights, or activate a water pump—all from your phone. With a simple tap, you can control connected systems anytime, anywhere.
Real-Time Monitoring
Stay informed with live status updates. Know whether your gate is open or closed, check if your alarm system is armed, or monitor water levels in your reservoir—all from your mobile device.
What’s the difference:
The G-SPEAK ULTRA features a blue button, has intercom function and an audio/entry module at the gate.
The G-ULTRA features a green button, does not have intercom function nor audio module at gate.
FEATURES OF THE 4-BUTTON METAL GATE STATION:
- Answer your intercom from anywhere, using your cellular device
- Enhanced security and convenience
- No messy and expensive wiring
- 1, 2 or 4 call buttons with the ability to add two numbers per button and Time Barring configurable per button (for example, automatically disable primary button at night)
- Backlit button(s)
- Rugged aluminium enclosure
- The mounting holes are compatible with our Universal Gooseneck (Requires a Gooseneck backing plate to maintain IP rating)
FEATURES OF THE G-ULTRA 4G GSM:
- Monitor up to four electrical devices by receiving push notifications
- Use the outputs to control up to six devices from your phone (two additional onboard relays)
- Open, Close and Intelligently monitor your gate status via your phone
- Control a multitude of access automation devices such as gate motors and garage door operators
- Flexible scheduling, automatic activations, and visitor control – ideal for B & Bs and Guesthouses
- 1500 user memory
- LCD screen for easy access to diagnostics
- Instant activation via MyCentsys Remote mobile app
- Easy setup via G-WEB PLUS online interface
- Ironclad Security – Password protection means no one else can control you G-ULTRA
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
Applications
The G-ULTRA is perfect for managing:
- Gates and Garage Doors – Open, close, and monitor status remotely.
- Lighting Systems – Turn on outdoor or security lights before you arrive home.
- Irrigation and Water Features – Automate watering schedules or activate fountains.
- Alarm Systems – Arm or disarm your security system from anywhere, and receive instant notifications if the alarm is triggered
- Borehole and Pool Pumps – Control water flow and filtration with ease.
- Geysers – Remotely switch your water heater on and off to save energy.
- Water Reservoirs – Monitor levels and control filling cycles.
Note: Some applications may require additional equipment, such as high-voltage relays.
SPECIFICATIONS OF THE G-ULTRA 4G GSM:
| Supply Voltage Range | 11-24VDC |
| Maximum Current Draw | 300mA @ 12 VDC |
| 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 | E-sim/ Built-in-Sim |
| 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 Configurations |
| Degree of protection | IP40 |
| Product Dimensions | 114.4 mm(L) x 73.6mm(W x 33mm (H) |
| Product Weight | 155g |
| Packaging Dimensions | 80mm (w) x 118mm (L) x 38mm (H) |
| Mass of unit packed | 165g |
| Warranty | 24 months limited Manufacturer’s warranty |
Additional information pertaining to the G-ULTRA 4G GSM:
1. May not be used in devices other than G-ULTRA.
2. Remains the property of Centurion Systems (Pty) Ltd.
Warnings and Limitations on the G-ULTRA 4G GSM:
1. All installations must be done by a suitable qualified technician
2. Under no circumstances may any of the components be modified.
WHAT’S IN THE BOX:
1 x Centurion G-ULTRA 4G GSM Control Unit (E-sim/ Built-in Sim)
Limitations:
The images shown are for illustrative purposes only. Actual product may vary slightly.
SPECIFICATIONS OF THE 4-BUTTON METAL GATE STATION:
| Operating voltage (2) | 7.4V DC as supplied by the G-SPEAK ULTRA (3) |
| Current draw | 11mA |
| Speech volume | Adjustable via G-WEB |
| Wiring | 6 wire connection (power, audio and mic) |
| Ring tone | Electronic when button is depressed |
| Call confirmation | Yes |
| Call buttons | 1, 2 or 4 (illuminated with labels) |
| Operating temperature | -20°C to +50°C |
| Humidity | 0 - 90% non-condensing |
| Degree of protection | IP54 (4) |
| Product Dimensions | 40 mm (D) x 97 mm (W) x 175 mm (H) |
| Product Weight | 560 |
| Packaging Dimensions | 120mm(H) x 120(W)mm x 50mm(D) |
| Mass of unit packed | 572g |
| Warranty | 24 months limited Manufacturer’s warranty |
Additional information pertaining to the 4-button Metal Gate Station:
1. Requires a G-Speak Ultra device, as the Gate Station cannot be used on its own.
2. If the 12V DC gate motor supply dips when the motor starts up and the intercom is being
used at the same time, the speech quality might be affected.
3. The Gate Station must only be powered via a G-Speak Ultra Device.
4. A Gooseneck backing plate is required when mounting onto a Gooseneck, to maintain
IP rating
Warnings and Limitations on the 4-button Metal Gate Station:
1. All installations must be done by a suitable qualified technician
2. Under no circumstances may any of the components be modified.
WHAT’S IN THE BOX:
1 x Centurion G-Speak Ultra 4-button Metal Gate Station