The Apollo Integrated Base Sounder – Slow Whoop (45681-291APO) of a Base Sounder with integral Mounting Base and is for use with Apollo Discovery or XP95 ranges. The Apollo 45681-291APO is designed for indoor use.
Features
2 tones
2 volume ranges 55-75dB(A) and 75-91dB(A)
Individual and group addressing
Unique acoustic self-test
Built-in isolator.