{"product_id":"alarmsense-optical-smoke-detector-2-wire-en54-7-9-33-v-dc-100-42-mm-55000-390apo","title":"AlarmSense Optical Smoke Detector, 2-wire, EN54‑7, 9–33 V DC, 100×42 mm 55000-390APO","description":"\u003cp\u003e\u003cstrong\u003eApollo 55000-390APO AlarmSense Optical Smoke Detector\u003c\/strong\u003e — a compact, EN54‑7 certified optical (photoelectric) detector designed for residential and small-to-medium commercial installations. Ideal for bedrooms, escape routes, care homes, HMOs and similar areas where early detection of smouldering fires is required. The detector fits a compatible AlarmSense two‑wire base and provides 360° LED status indication.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDetection principle:\u003c\/strong\u003e Optical \/ photoelectric (light‑scatter, chevron chamber) — effective for slow‑burning and smouldering fires.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCertification:\u003c\/strong\u003e EN54‑7 certified (third‑party).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSupply voltage:\u003c\/strong\u003e 9–33 V DC; polarity‑insensitive 2‑wire monitored connection.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLow standby draw:\u003c\/strong\u003e Quiescent current ≈ 50 µA @ 15 V.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact design:\u003c\/strong\u003e ≈100 mm diameter × 42 mm depth (detector only); white polycarbonate housing with 360° LED.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 10 years (manufacturer stated).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eUse cases:\u003c\/strong\u003e Suitable for domestic, education and light commercial sites where AlarmSense two‑wire detection is used. Requires compatible AlarmSense base and installer configuration according to the system panel manufacturer.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSafety \u0026amp; compliance notes:\u003c\/strong\u003e EN54‑7 certification is stated by the manufacturer. Check the official datasheet\/installation instructions for full electrical tables, IP rating confirmation (some reseller pages list IP44 but this is not consistently documented) and for UKCA\/CE marking if required for your market. Installation should be performed by a competent engineer in accordance with BS 5839‑1 (or the relevant national standard) and the product installation manual.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRecommendation:\u003c\/strong\u003e Refer to the official Apollo datasheet\/installation manual for precise alarm current curves, supply‑interrupt tolerance and base compatibility before specifying or installing.\u003c\/p\u003e","brand":"Apollo","offers":[{"title":"-","offer_id":56594922307957,"sku":"55000-390APO","price":18.38,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0050\/1216\/0612\/files\/ITM002852_1.png?v=1768252476","url":"https:\/\/wmestore.co.uk\/products\/alarmsense-optical-smoke-detector-2-wire-en54-7-9-33-v-dc-100-42-mm-55000-390apo","provider":"WME","version":"1.0","type":"link"}