{"product_id":"dahua-triple-tech-detector-ard2251e-w2","title":"Dahua Triple-Tech Detector ARD2251E-W2","description":"\u003cstyle\u003e\n.dahua-product *{\n    font-family: Arial, sans-serif;\n}\n\n.dahua-product{\n    color:#444;\n}\n\n\/* Main Heading *\/\n.dahua-product h2{\n    background:linear-gradient(135deg,#1f1f1f,#383838);\n    color:#fff;\n    padding:14px 20px;\n    border-radius:10px;\n    margin-top:35px;\n    font-size:26px;\n    letter-spacing:0.5px;\n}\n\n\/* Sub Heading *\/\n.dahua-product h3{\n    color:#a94442;\n    margin-bottom:8px;\n}\n\n\/* Paragraph *\/\n.dahua-product p{\n    line-height:1.8;\n    color:#555;\n}\n\n\/* Feature Cards *\/\n.feature-box{\n    background:#fafafa;\n    border-left:5px solid #c96a6a;\n    padding:18px 22px;\n    margin-bottom:18px;\n    border-radius:12px;\n    transition:all .3s ease;\n    box-shadow:0 2px 8px rgba(0,0,0,.06);\n}\n\n.feature-box:hover{\n    transform:translateY(-4px);\n    box-shadow:0 8px 20px rgba(0,0,0,.12);\n}\n\n\/* Specification Table *\/\n.spec-table{\n    width:100%;\n    border-collapse:collapse;\n    margin-top:20px;\n    border-radius:12px;\n    overflow:hidden;\n}\n\n.spec-table th{\n    background:#2c2c2c;\n    color:white;\n    padding:14px;\n    font-weight:600;\n}\n\n.spec-table td{\n    padding:14px;\n    border:1px solid #ececec;\n}\n\n.spec-table tr:nth-child(even){\n    background:#f8f8f8;\n}\n\n.spec-table tr:hover{\n    background:#fff4f4;\n}\n\n\/* List Style *\/\n.dahua-product ul{\n    padding-left:20px;\n}\n\n.dahua-product li{\n    margin-bottom:12px;\n}\n\n\/* Mobile Responsive *\/\n@media(max-width:768px){\n\n.dahua-product h2{\n    font-size:22px;\n    padding:12px 16px;\n}\n\n.feature-box{\n    padding:15px;\n}\n\n.spec-table th,\n.spec-table td{\n    padding:10px;\n    font-size:14px;\n}\n\n}\n\u003c\/style\u003e\n\u003cdiv class=\"dahua-product\"\u003e\n\n\u003ch2\u003eOverview\u003c\/h2\u003e\n\n\u003cp\u003e\nThe \u003cstrong\u003eDahua ARD2251E-W2 Triple-Tech Detector\u003c\/strong\u003e is a professional-grade outdoor wireless intrusion detector that combines PIR, microwave, optical technology, and intelligent algorithms to provide highly accurate motion detection while minimizing false alarms. Designed for both indoor and outdoor applications, the detector offers dependable perimeter protection for homes, villas, offices, warehouses, and commercial facilities.\n\u003c\/p\u003e\n\n\u003cp\u003e\nFeaturing anti-masking technology, pet immunity, moving detection, environmental temperature monitoring, and IP66 weatherproof protection, the ARD2251E-W2 delivers reliable performance even in harsh environments. Two-way wireless communication, AES128 encryption, and frequency hopping technology ensure secure and stable communication with the Dahua Alarm Hub.\n\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\n\u003cdiv class=\"feature-box\"\u003e\n✔ Triple-tech detection using PIR, microwave and optical technologies\n\u003c\/div\u003e\n\n\u003cdiv class=\"feature-box\"\u003e\n✔ Outdoor and indoor installation support\n\u003c\/div\u003e\n\n\u003cdiv class=\"feature-box\"\u003e\n✔ Detection range up to 15 m with 90° coverage\n\u003c\/div\u003e\n\n\u003cdiv class=\"feature-box\"\u003e\n✔ Anti-masking detection\n\u003c\/div\u003e\n\n\u003cdiv class=\"feature-box\"\u003e\n✔ Motion detection against tampering or removal\n\u003c\/div\u003e\n\n\u003cdiv class=\"feature-box\"\u003e\n✔ Pet immunity up to 40 kg\n\u003c\/div\u003e\n\n\u003cdiv class=\"feature-box\"\u003e\n✔ Automatic digital temperature compensation\n\u003c\/div\u003e\n\n\u003cdiv class=\"feature-box\"\u003e\n✔ White light resistance up to 10,000 lux\n\u003c\/div\u003e\n\n\u003cdiv class=\"feature-box\"\u003e\n✔ Environmental temperature monitoring\n\u003c\/div\u003e\n\n\u003cdiv class=\"feature-box\"\u003e\n✔ Two-way wireless communication\n\u003c\/div\u003e\n\n\u003cdiv class=\"feature-box\"\u003e\n✔ AES128 encryption and frequency hopping technology\n\u003c\/div\u003e\n\n\u003cdiv class=\"feature-box\"\u003e\n✔ Cloud firmware update with automatic recovery\n\u003c\/div\u003e\n\n\u003cdiv class=\"feature-box\"\u003e\n✔ IP66 weatherproof protection\n\u003c\/div\u003e\n\n\u003cdiv class=\"feature-box\"\u003e\n✔ Battery life up to 5 years\n\u003c\/div\u003e\n\n\u003ch2\u003eWhy Choose Dahua ARD2251E-W2?\u003c\/h2\u003e\n\n\u003cdiv class=\"feature-box\"\u003e\n\u003ch3\u003eAdvanced Triple-Tech Detection\u003c\/h3\u003e\n\u003cp\u003e\nCombining PIR, microwave and optical technologies provides highly reliable detection and reduces false alarms caused by environmental interference.\n\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"feature-box\"\u003e\n\u003ch3\u003eIdeal for Outdoor Protection\u003c\/h3\u003e\n\u003cp\u003e\nWith IP66-rated weatherproof housing and operation down to -25°C, the detector is designed for harsh outdoor environments.\n\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"feature-box\"\u003e\n\u003ch3\u003eEnhanced Security Features\u003c\/h3\u003e\n\u003cp\u003e\nAnti-masking detection and moving detection help prevent attempts to block, remove or tamper with the detector.\n\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"feature-box\"\u003e\n\u003ch3\u003ePet-Friendly Design\u003c\/h3\u003e\n\u003cp\u003e\nPet immunity up to 40 kg helps eliminate false alarms caused by animals.\n\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"feature-box\"\u003e\n\u003ch3\u003eLong Battery Life\u003c\/h3\u003e\n\u003cp\u003e\nPowered by four CR123A batteries, the detector can operate for up to five years under typical usage conditions.\n\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\n\u003ctable class=\"spec-table\"\u003e\n\n\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eWireless Triple-Tech Detector\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eDetection Technology\u003c\/td\u003e\n\u003ctd\u003ePIR + Microwave + Optical Algorithm\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eDetection Range\u003c\/td\u003e\n\u003ctd\u003e15 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eDetection Angle\u003c\/td\u003e\n\u003ctd\u003e90°\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eInstallation Height\u003c\/td\u003e\n\u003ctd\u003e0.8 m – 1.3 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eDetection Speed\u003c\/td\u003e\n\u003ctd\u003e0.3 m\/s – 2 m\/s\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eMicrowave Frequency\u003c\/td\u003e\n\u003ctd\u003e24 GHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003ePet Immunity\u003c\/td\u003e\n\u003ctd\u003eUp to 40 kg and 80 cm Height\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eSensitivity Adjustment\u003c\/td\u003e\n\u003ctd\u003e3 Levels\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eWhite Light Immunity\u003c\/td\u003e\n\u003ctd\u003e10,000 lux\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eAnti-Masking\u003c\/td\u003e\n\u003ctd\u003eSupported\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eMoving Detection\u003c\/td\u003e\n\u003ctd\u003eSupported\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eTemperature Compensation\u003c\/td\u003e\n\u003ctd\u003eTwo-Way Digital Temperature Compensation\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eEnvironmental Temperature Monitoring\u003c\/td\u003e\n\u003ctd\u003eSupported\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eApplication Scenario\u003c\/td\u003e\n\u003ctd\u003eIndoor and Outdoor\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eCommunication Mechanism\u003c\/td\u003e\n\u003ctd\u003eTwo-Way Wireless Communication\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eEncryption Mode\u003c\/td\u003e\n\u003ctd\u003eAES128\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eFrequency Hopping\u003c\/td\u003e\n\u003ctd\u003eSupported\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eWireless Frequency\u003c\/td\u003e\n\u003ctd\u003e868.0 MHz – 868.6 MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eTransmission Power\u003c\/td\u003e\n\u003ctd\u003eUp to 25 mW (EIRP)\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eCommunication Distance\u003c\/td\u003e\n\u003ctd\u003eUp to 1,600 m (Open Area)\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eRemote Upgrade\u003c\/td\u003e\n\u003ctd\u003eCloud Update\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eLow Battery Detection\u003c\/td\u003e\n\u003ctd\u003eSupported\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eTamper Alarm\u003c\/td\u003e\n\u003ctd\u003eSupported\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003e4 × CR123A Batteries\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eBattery Life\u003c\/td\u003e\n\u003ctd\u003eUp to 5 Years\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-25°C to +60°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eOperating Humidity\u003c\/td\u003e\n\u003ctd\u003e10% – 90% RH\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eProtection Level\u003c\/td\u003e\n\u003ctd\u003eIP66\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eInstallation\u003c\/td\u003e\n\u003ctd\u003eWall Mount or Pole Mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e211 × 106 × 94 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e651 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eCasing Material\u003c\/td\u003e\n\u003ctd\u003ePC + GF\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eCertification\u003c\/td\u003e\n\u003ctd\u003eCE EN50131 Grade 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003c\/table\u003e\n\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\n\u003cdiv class=\"feature-box\"\u003e\n🏠 Villas and Residential Properties\n\u003c\/div\u003e\n\n\u003cdiv class=\"feature-box\"\u003e\n🏢 Offices and Commercial Buildings\n\u003c\/div\u003e\n\n\u003cdiv class=\"feature-box\"\u003e\n🏭 Warehouses and Industrial Facilities\n\u003c\/div\u003e\n\n\u003cdiv class=\"feature-box\"\u003e\n🏬 Retail Stores and Shopping Centers\n\u003c\/div\u003e\n\n\u003cdiv class=\"feature-box\"\u003e\n🚪 Outdoor Perimeter Protection\n\u003c\/div\u003e\n\n\u003cdiv class=\"feature-box\"\u003e\n🏨 Hotels and Hospitality Properties\n\u003c\/div\u003e\n\n\u003cdiv class=\"feature-box\"\u003e\n🏦 Banks and High-Security Facilities\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n","brand":"Dahua Technology","offers":[{"title":"Default Title","offer_id":55263301533987,"sku":null,"price":11440.64,"currency_code":"INR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0871\/4125\/3411\/files\/ARD2251E-W2-868V.jpg?v=1781933852","url":"https:\/\/attendancemachine.in\/products\/dahua-triple-tech-detector-ard2251e-w2","provider":"Attendance Machine","version":"1.0","type":"link"}