Overview
The 2GIG GC3 (and GC3e encrypted variant) is a touchscreen all-in-one wireless security panel with built-in Z-Wave home automation, 345 MHz wireless sensor support, optional LTE cell modules, and Alarm.com interactive services when paired with a compatible communicator.
The panel is the brain of the 2GIG system: it supervises wireless zones, drives local sirens, manages Z-Wave automation, and reports to Alarm.com (or your dealer monitoring platform) when a compatible cell module is installed and activated. Installers program zones, user codes, and dialer options in the installer menu; end users arm/disarm from the touchscreen, keyfobs, or Alarm.com app.
At a Glance
| Specification | Details |
|---|---|
| Role | Primary alarm panel + 7-inch touchscreen |
| Wireless sensors | 345 MHz 2GIG / 345S family; eSeries encrypted where supported |
| Automation | Z-Wave Plus devices via panel radio |
| Cellular | Optional GC3 LTE modules (Alarm.com, ADC, SecureNet — SKU specific) |
| Programming | Installer menu on panel; user codes for arming |
| Backup power | Internal rechargeable battery |
| Typical use | Residential/small commercial DIY and pro installs |
What This Panel Does Well
Coordinates intrusion zones, automation, user codes, and central station reporting when cell and monitoring are configured.
Before You Service or Replace One
- Exact panel model — GC2 vs GC3 vs Edge — firmware and modules differ.
- Encryption — GC2e/GC3e/Edge vs standard sensors in the field.
- Cell module SKU — Alarm.com vs ADC vs SecureNet vs Telus.
- Installer code — required for zone changes; document before service.
- Alarm.com dealer — account status, plan, and remote programming access.
Official Sources
- 2GIG product page
- 2GIG Panel Firmware Update Paths - TB2019-08-21
- 2GIG Warranty and Repair Information - Dated 05/01/2018
- 2GIG GC3/3e Firmware 3.2.5 Update - Release Notes Dated 01/2020
Use official 2GIG PDFs and install guides for exact wiring, enrollment, and firmware — specifications vary by SKU and region.
Compatible Peripherals
This page lists 2GIG ecosystem compatibility — panels, transceivers, repeaters, and monitoring platforms — not third-party panel brands unless using an approved takeover path.
Host compatibility
| Host / ecosystem | How it connects |
|---|---|
| 345 MHz / 345S sensors | Enroll on panel wireless receiver |
| eSeries encrypted sensors | GC3e / firmware supporting encrypted enrollment |
| GC3 LTE cell modules | Alarm.com or dealer-specific interactive path |
| Z-Wave thermostats, locks, lights | Automation rules on panel / Alarm.com |
| 900 MHz ePlus sensors | Requires compatible transceiver (XCVR2) where supported |
Not compatible / common mistakes
- Assuming GC2-only LTE modules fit GC3 without verifying SKU and firmware
- Mixing 319 MHz sensors on standard 345 MHz GC3 receiver without correct hardware
- Encrypted eSeries sensors on non-e panels without encryption support
Replacement guidance
- Match SKU and encryption generation on product label before ordering.
- Delete old zone/device in installer programming before enrolling replacement.
- Document zone number and name for user and central station records.
- Run walk test and communication test after swap on monitored accounts.
Source: 2GIG GC3/GC3e install and programming guide; GC3 user guide (2GIG official documentation).