Internal Sounders
Elmdene

Elmdene Hi and Low level Sounder
HKC
HKC Echo Flash Internal Sounder Blue
HKC

HKC Echo Flash Internal Sounder Red
HKC
HKC Echo Internal Sounder (28)
Honeywell

Honeywell SP20ST Indoor Siren Grade 2
Klaxon

Klaxon 127Db 230v High Output Master Blaster Siren (12v Relay)
Klaxon

Klaxon 127Db High Output Master Blaster 240v Siren
Security Warehouse

Knight 16 Ohm Internal Speaker Grade 1
Knight Manufacturing

Knight Grade 3 Octone 16 Ohm Large Speaker (87mm) - Tampered
Knight Manufacturing

Knight Grade 3 Octone 16Ohm Small Speaker (50mm) - Tampered
Knight Manufacturing

Knight Grade 3 Octone Large (87mm) Speaker with Strobe- Tampered
Knight Manufacturing

Knight Grade 3 Octone Small (50mm) Speaker with Strobe- Tampered