Guardian ETS Main Unit – 4G Emergency Communication Module The Guardian ETS Main Unit is the core component of Liftlogic AB’s emergency communication system for elevators and platform lifts. It manages voice and data communication over 4G, 3G, and 2G mobile networks and powers the connected Voice Unit via a proprietary 2-wire digital interface. Key Features Supports 4G (VoLTE), 3G, and 2G cellular networks Bluetooth configuration via Guardian mobile app (iOS & Android) DIN rail mountable (TS35) Wide DC input range: 9–30VDC (24VDC recommended) OLED display with PIN code access for pairing and status SMA antenna connector (antenna included) Technical Details Dimensions: 112 × 74 × 46 mm Power Consumption: 1.2W (idle), up to 3.5W (peak) SIM Card: Nano SIM (4FF), PIN code must be disabled IP Rating: IP20 Operating Temperature: -20°C to +50°C Weight: 150 g Download the quick start guide here The Main Unit is ideal for retrofitting or upgrading emergency phone systems in elevator and platform lift applications. Designed and manufactured in Sweden, it offers reliable performance, easy setup, and full compliance with European safety standards.