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The Centurion G-SPEAK ULTRA (often referred to interchangeably with G-ULTRA in product contexts) is a cutting-edge wireless GSM-based intercom system that combines a stylish ULTRA gate station interface with an integrated GSM module. Powered by 4G/LTE technology, it allows users to communicate with visitors at the gate, answer intercom calls, open/close gates, and control/monitor connected appliances—all directly from their mobile phones, from anywhere in the world. This eliminates the need for traditional wired intercom handsets, reducing installation costs and complexity while enhancing security (e.g., giving the illusion of being home even when away).

It’s distinct from the G-ULTRA variant: G-SPEAK ULTRA has blue buttons and includes full intercom/audio functionality with an entry module at the gate, while G-ULTRA has green buttons and focuses on control without intercom audio.

Key Features:

• Wireless Intercom & Control: Answer calls from up to 4 users’ phones simultaneously; open gates via missed call, SMS, or app; no wiring back to the house.
• Configurable Channels: Up to 4 channels (inputs/outputs) for monitoring/controlling appliances like gate motors, electric fences, pool pumps, geysers, generators, or irrigation.
• Access Modes: Weekly scheduling and visitor access (set arrival/departure times/dates); time-barring per button (e.g., disable primary button at night); up to 20 scheduled text messages with outputs.
• Enhanced Security: Only authorized phones can access; transaction logs via G-WEB PLUS online interface; optional metal gate station for tamper/vandal resistance.
• User Management: Supports up to 100 users; add/delete/edit via SMS or G-WEB PLUS web/app; load airtime remotely.
• Notifications: SMS/missed call/email for events like gate status changes or alarms.
• 4G Technology: Superior connectivity over 2G/3G (legacy versions phasing out); internal/external antenna options.
• Setup & Admin: SMS commands for configuration; G-WEB PLUS for online management (change passwords, call/ring/hang times, etc.).
• Additional: Custom messages for guests (e.g., B&B instructions); no need to share keys/remotes with service providers.

Compatibility & Integration:

• Works standalone or with Centurion gate motors (e.g., D-Series, Sector) via status outputs.
• Requires a metal/plastic gate station (1-4 buttons; buttons can have 2 numbers each with time-barring).
• Gate station powered only via G-SPEAK ULTRA; gooseneck mount needs backing plate for IP rating.
• Network Bands: GSM 4G/LTE-CAT1 (900/2100MHz); earlier models supported 2G/3G variants.

Specifications:

• Power: 11-24V DC, 300mA at 12V.
• Outputs/Channels: 2x relays + 4x I/O (configurable).
• Users: Up to 100.
• Antenna: Internal (default) or external SMA connector.
• Gate Station Options: 1/2/4-button metal (tamper-resistant) or standard; blue buttons for intercom/audio.
• Includes: Controller module (with e-SIM/built-in SIM in 4G versions), navigation panel, LCD screen, terminal blocks.

Availability in Lagos, Nigeria: Limited local stock for this South African-manufactured product; imported via Centurion partners or security suppliers like SecureRite affiliates. Check Jiji.ng, Jumia Nigeria, or local installers for imports.

Professional Buy and Installation Service: Recommended for proper setup due to wiring, GSM configuration, and integration. In Lagos, use qualified installers for site assessment, mounting (gate station + controller), SIM/airtime setup, and testing. Avoid DIY modifications for warranty/safety.