Scantronic Secure Radio (SSR) products feature advanced two-way communication and true signal encryption, ensuring market leading cybersecurity comes as standard. Over-the-air updates keep devices future-proof and reduce labour time onsite, whilst shortened device response times improve battery life and ensure rapid event notification, minimising false alarms. The EXP-2R is a two-way expander designed for Grade 2 installations, installed to PD6662:2017. The expander can also provide radio HUA functionality in Grade 3 installations. Tri-channel swapping for minimised signal interference Device signal strengths indicated on the expander Full diagnostics and fault reporting via the bus Built-in piezo sounder for bus location One button push for semi-auto addressing for speed and device numbering integrity LED diagnostics AES128 encryption