Bosch Alarm · Flush-Mount Siren · Blue Strobe · Backup Battery · KIT3 Bosch Siren Kit KIT3 External Siren Kit (KIT3) — Australian Stock & 3-Year Warranty The Bosch KIT3 flush-mount siren kit is the premium external warning solution for Bosch Solution 2000 and Solution 3000 alarm systems. Its recessed flush-mount siren sits neatly into the wall or eave for a clean, tamper-resistant, architectural finish, while the signature blue strobe gives immediate visual identification of an alarm event. The kit combines a 110dB+ external siren, an internal "top-hat" piezo screamer, a 12V 7Ah backup battery and a housing tamper switch. Built from UV-stabilised polycarbonate for harsh Australian weather. Backed by a 3-year Australian warranty. Siren Output 110dB+ Strobe Blue Mounting Flush / Recessed Backup 12V 7Ah Flush-Mount Design The recessed siren sits flat against the structure for a low-profile, tamper-resistant, architectural finish. High-Visibility Strobe The blue strobe delivers instant visual warning of an alarm event, day or night, as a strong deterrent. Weather Resistant UV-stabilised polycarbonate stands up to harsh Australian sun and rain for years of reliable service. Complete Warning Kit External siren, internal piezo, 7Ah backup battery and tamper switch — a full audible/visual warning package. What's Included 1 x External Flush-Mount Siren With blue strobe (Bosch 5026) 1 x Internal Piezo Screamer "Top-hat" internal sounder (SOUN008) 1 x Backup Battery 12V 7Ah sealed lead-acid (BAT2000) 1 x Tamper Switch Alarm housing tamper (Bosch 5060) Technical Specifications Kit / SKU SIREN-SURFACE-KIT-3 (KIT3) Mounting Type Flush / recessed mount Operating Voltage 12V DC Siren Output 110dB+ at 1 metre Strobe Colour Blue Backup Battery 12V 7.0Ah sealed lead-acid Suits Bosch Solution 2000 / 3000 (and other 12V hardwired panels) Warranty 3 Years (Australia) Downloads Siren Kit Datasheet Bosch Siren Kit Quick Start Guide Bosch Siren Kit User Manual Frequently Asked Questions What is the difference between KIT2 and KIT3?KIT2 uses a surface-mount siren that sits on top of the wall; KIT3 uses a flush-mount siren recessed into the wall or eave for a flatter, cleaner profile. Does it fit a standard wall cavity?Yes. It is designed to fit standard Australian wall cavities or eaves for a professional, architectural finish. Which panels does it suit?It is ideal for Bosch Solution 2000/3000 and works with virtually any hardwired 12V alarm panel. Is a backup battery included?Yes — a 12V 7Ah sealed lead-acid battery is supplied to power the system during a mains outage. Does it have tamper protection?Yes. A housing tamper switch triggers the alarm if the cover is removed. What colour is the strobe?Blue — the signature high-visibility Bosch strobe for clear alarm identification. 3-Year AU Warranty Fast AU-Wide Shipping AU Tech Support