Centurion G-Speak G-ULTRA GSM Module

The Centurion G-Speak G-ULTRA GSM Module is a powerful mobile-based monitoring and control system designed for versatile remote management of automation and security systems. Featuring four configurable channels that function as inputs or outputs, two high-power relays, and support for up to 1,500 access numbers, the G-ULTRA module enables full control of electrical devices and status monitoring from anywhere using a mobile phone or Centurion’s G-REMOTE app. Whether you’re managing access to a property, controlling water systems, or automating energy use, this compact GSM unit offers unmatched flexibility, security, and convenience.

Product Features

Four Configurable Input or Output Channels

The G-ULTRA provides four 50mA channels that can be independently configured as either inputs or outputs. This flexibility enables integration into diverse applications ranging from alarm monitoring to device control.

Two Onboard Relays for High-Power Switching

Includes two 1A onboard relays for controlling heavier loads such as automated gates, irrigation pumps, or lighting circuits. Output modes can be configured as pulsed or latched for precise control.

Advanced Access Management

Supports up to 1,500 access numbers and 20 access profiles, allowing you to control who can trigger outputs and when. Ideal for large residential estates, commercial premises, or mobile fleets requiring multiple authorized users.

Extensive Event Logging

Tracks up to 5,000 events, providing a detailed record of device activity, user access, and system triggers for auditing or troubleshooting purposes.

Remote Control from Anywhere

Use your mobile phone to control connected devices via missed call, SMS, or the G-REMOTE smartphone app. Full remote access enables management of gates, appliances, and alarm systems—even when you’re not on site.

Real-Time Monitoring

Receive SMS or app notifications when monitored devices change state. Monitor equipment such as:

• House alarm systems
• Electric fences
• Geysers and pumps
• Fridges (on boats or remote sites)
• Water reservoirs (level indicators)
• Gate positions or vehicle ignition states

Versatile Output Control

Activate and manage a wide range of electrical devices, including:

• Entrance gates
• Lighting systems
• HVAC units
• Borehole or booster pumps
• Vehicle immobilization systems
• Irrigation systems
• Security alarms

Compact and Durable Design

With a compact form factor and low power requirements, the G-ULTRA is ideal for space-constrained environments, mobile installations, or off-grid applications.

Preloaded SIM Card Included

Comes with a SIM card preloaded with R15.00 airtime for immediate setup and testing.

Product Specifications

• Product type: GSM-based control and monitoring module
• Channels: 4 configurable inputs or outputs (50mA each)
• Relays: 2 onboard relays (1A each)
• Maximum users: 1,500 access numbers
• Access profiles: 20 user profiles
• Event log: Stores up to 5,000 events
• Power supply: 11–24V DC
• SIM card: Included (preloaded with R15.00 airtime)
• Communication methods: Missed call, SMS, G-REMOTE mobile app
• Dimensions (mm): 76 (H) × 114 (W) × 33 (D)
• Weight: 0.2kg
• Applications: Gates, alarms, lighting, pumps, fridges, irrigation, vehicles, water levels