Hello Alexander, the Notifier RP-2001 is indeed an older model, and you’re right to think about an upgrade. A great replacement option is the Notifier RP-2001E. It’s an updated version of the RP-2001, offering improved features and compatibility. The RP-2001E is designed to be a drop-in replacement, which means it can easily replace your RP-2001 without much hassle. It’s a reliable choice for modernizing your fire alarm system while keeping the existing infrastructure intact.