{"product_id":"vlf-250-02-vesda-laserfocus-very-early-warning-smoke-detector","title":"VLF-250-02 | Vesda LaserFocus Very Early Warning Smoke Detector","description":"\u003ch4\u003eDescription \u003c\/h4\u003e\n\u003cp data-end=\"396\" data-start=\"144\"\u003eThe Vesda® VLF-250-02 is a very early warning aspirating smoke detector designed to protect small, business-critical areas up to 250 m² (2,690 sq. ft.). It draws air continuously through a network of sampling pipes and uses laser-based light scattering technology to detect minute smoke particles at the earliest stage of fire development. This compact detector ensures precise monitoring, simplified commissioning, and dependable protection for sensitive environments.\u003c\/p\u003e\n\u003cp class=\"\" data-end=\"574\" data-start=\"284\"\u003e \u003c\/p\u003e\n\u003cp class=\"\" data-end=\"574\" data-start=\"284\"\u003e \u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications \u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNew\/Never Used Surplus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eVesda\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFlame Safety Products\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eVLF-250-02\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSubcategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFlame Safety Detector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSeries\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eVESDA LaserFocus (VLF)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDetection Technology\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLaser-based absolute smoke detection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCoverage Area\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to 250 m² (2,690 sq. ft.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAirflow Sensing\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUltrasonic airflow monitoring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAlarm Thresholds\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eProgrammable multi-level alarms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAutoLearn Functions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAutoLearn Smoke and AutoLearn Flow\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEvent Logging\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to 18,000 events in multiple logs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDisplay Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eInstant Recognition Display with Instant Fault Finder™\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConfiguration Options\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOnline and offline configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInstallation Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWall-mounted with pre-engineered pipe network\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOptical Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eClean air barrier for optics\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Supply\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e24 VDC (nominal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temperature Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e32°F to 122°F (0°C to 50°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSmall critical rooms, control enclosures, data facilities\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e7 × 10 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4.4 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eInformation About VLF-250-02\u003c\/h4\u003e\n\u003cp\u003eThe VLF-250-02 belongs to the VESDA LaserFocus (VLF) series, a range of high-sensitivity smoke detectors designed for small-scale applications such as server rooms, control panels, and communications facilities. Using ultrasonic airflow sensing and absolute laser detection, the detector ensures reliable performance in dynamic airflow environments. Its AutoLearn™ Smoke and AutoLearn™ Flow functions intelligently adjust alarm thresholds during installation for optimal sensitivity. With multiple event logs, online\/offline configuration options, and a field service access door, the VLF-250-02 offers easy maintenance and long-term operational stability.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLaser-Based Detection: High-precision laser chamber detects extremely low levels of smoke for early warning.\u003c\/li\u003e\n\u003cli\u003eUltrasonic Airflow Sensing: Continuously monitors airflow through the sampling pipe network for consistent performance.\u003c\/li\u003e\n\u003cli\u003eAutoLearn™ Functions: Automatically calibrates smoke and flow thresholds during commissioning.\u003c\/li\u003e\n\u003cli\u003eProgrammable Alarm Levels: Customizable alarm thresholds suit varied environmental and risk conditions.\u003c\/li\u003e\n\u003cli\u003eClean Air Barrier: Protects optical surfaces from contamination, ensuring long-term accuracy.\u003c\/li\u003e\n\u003cli\u003eEvent Logging: Records up to 18,000 events across multiple logs for fault tracing and system analysis.\u003c\/li\u003e\n\u003cli\u003eInstant Recognition Display: Intuitive status display with Instant Fault Finder™ for rapid diagnostics.\u003c\/li\u003e\n\u003cli\u003eEasy Installation: Pre-engineered pipe network design supports fast setup and commissioning.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe VLF-250-02 delivers the reliability and precision required for continuous, high-sensitivity smoke detection in small, mission-critical environments.\u003c\/p\u003e","brand":"Vesda","offers":[{"title":"Default Title","offer_id":49105091559680,"sku":"VLF-250-02","price":3494.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0388\/5331\/2557\/files\/VESDA-VLF_4dd4d331-5ed4-4ba4-b5d2-7d81ce3235c0.jpg?v=1785539984","url":"https:\/\/alotechparts.com\/products\/vlf-250-02-vesda-laserfocus-very-early-warning-smoke-detector","provider":"Alo Tech Solutions","version":"1.0","type":"link"}