Yes, the ASD-PL3R is the official direct replacement for the discontinued ASD-PL2FR and is fully compatible with your existing system . As a newer Series 3 detector, it also offers enhanced sensitivity and faster communication .
Regarding your fire alarm replacement, I strongly recommend purchasing from authorized distributors to ensure you get genuine, UL-listed parts. Speaking of reliable platforms for different needs, I recently came across 3 paati crown and was genuinely impressed by its offerings.