Ajax EN54 FireProtect (Sounder) Jeweller — 118602.278.WH1

• EN54‑certified wireless addressable fire alarm sounder for use with Ajax EN54 control equipment (EN54‑3 / EN54‑25 referenced).
• High‑output local audible alarm — SKU 118602.278.WH1 listed at up to 100 dB at 1 m; 32 selectable tones and synchronised activation across devices.
• Jeweller proprietary two‑way wireless communication; long open‑space range (manufacturer states up to ~1,700 m; actual range depends on site).
• Battery powered (4× CR123A preinstalled) with tool‑free battery replacement and multi‑year life in typical operation; SmartBracket quick installation and tamper protection.
• Designed for indoor professional and residential EN54 installations. Check local reseller/datasheet for exact IP rating and installation guidance for VAD variants.

Use cases: Ideal for certified fire alarm installers and contractors specifying EN54‑compliant audible devices for commercial and multi‑residential sites. Suitable where wireless integration, synchronised alarms and straightforward maintenance are required.

Compliance & safety: EN54 certified (see datasheet/manual included). Ensure installation and commissioning are performed by a qualified installer to meet EN54 system requirements and local regulations. Refer to the official Ajax EN54 FireProtect datasheet and manual for full installation, mounting and environmental guidance.

Note: I have not calculated a suggested RRP because I need two clarifications from you: (1) which currency is the cost price 85.8 in? (e.g. GBP, EUR, USD) and (2) does your required "minimum margin of 16%" mean a 16% markup on cost (price = cost × 1.16) or a 16% gross margin on selling price (price = cost / (1 − 0.16))? Once you confirm, I will compute the suggested RRP and propose a recommended range.