3G ZeroWire module without SIM card. Grade 2. It can function as a primary or secondary means of transmission. Allows connection to the UTC UltraSync cloud. You can stream to CRA via the cloud or via OH-NetRec software. It allows bi-directional and use of the UltraSync mobile application. Integrated antenna, optional outdoor antenna. Module that can be directly connected to the control unit. Easy to install and maintain. Dimensions: 27 x 90 x 17 mm.