{"product_id":"t441r-wireless-photoelectric-smoke-detector-433mhz-stand-alone-battery-powered","title":"T441R WIRELESS PHOTOELECTRIC SMOKE DETECTOR - 433MHZ | STAND ALONE | BATTERY-POWERED","description":"\u003cp\u003eInstant Smoke Detection • Loud 80dB Alarm • Wireless Signal • 9V Battery Powered\u003c\/p\u003e\n\u003ch1\u003e\u003cbr\u003e\u003c\/h1\u003e\n\u003cp\u003eThe \u003cstrong\u003eT441R Wireless Smoke Detector\u003c\/strong\u003e provides fast, reliable fire detection using advanced photoelectric sensing. Equipped with an 80dB alarm, LED indicators, and wireless signal transmission, it is ideal for homes, apartments, offices, and small commercial spaces. Simple installation, long battery life, and strong safety performance make it a must-have for fire protection.\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eEarly Fire Detection for Maximum Safety\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThis smoke detector reacts to smoke at the \u003cstrong\u003eearliest stage of a fire\u003c\/strong\u003e, activating \u003cstrong\u003esound + light alarms\u003c\/strong\u003e and sending a \u003cstrong\u003ewireless alarm signal\u003c\/strong\u003e to your security system (433MHz).\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eIt operates independently or can be paired wirelessly with alarm hosts that support \u003cstrong\u003e1527\/330K encoding\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch1\u003e\u003cbr\u003e\u003c\/h1\u003e\n\u003ch1\u003e🔧 \u003cstrong\u003eKEY FEATURES\u003c\/strong\u003e\n\u003c\/h1\u003e\n\u003ch3\u003e\u003cstrong\u003e✔ Photoelectric Smoke Sensor (High Accuracy)\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eDetects smoke faster and with fewer false alarms compared to older ionization sensors.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003e✔ Dual Alarm: Sound + Flashing LED\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cblockquote\u003e\n\u003cp\u003e80dB audible alarm\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eContinuous LED blinking during smoke alarm\u003cbr\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003e✔ Wireless Alarm Signal Transmission\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eSends 433MHz wireless alerts up to \u003cstrong\u003e100m (open space)\u003c\/strong\u003e.\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003e✔ Long Battery Life (9V Battery)\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eNormal battery life up to \u003cstrong\u003e1 year\u003c\/strong\u003e, depending on environment.\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003e✔ Easy Ceiling Installation\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eChoose from:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eScrew installation (recommended)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eAdhesive installation\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003e✔ Low Battery Warning\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eLED blinks 2× every 90s + 2 short beeps, plus wireless low-voltage signal.\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003e✔ Test \u0026amp; Mute Functions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTEST button\u003c\/strong\u003e checks siren + wireless signal\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMute mode\u003c\/strong\u003e silences the sound while LED continues blinking\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1\u003e\u003cbr\u003e\u003c\/h1\u003e\n\u003ch1\u003e📦 \u003cstrong\u003eWHAT'S INCLUDED\u003c\/strong\u003e\n\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e1× PA-441R Smoke Detector\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e1× Installation Plate\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e2× Screws + Anchors\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e1× Adhesive Pad (optional mounting)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e1× 9V Battery\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eUser Manual\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1\u003e\u003cbr\u003e\u003c\/h1\u003e\n\u003ch1\u003e📡 \u003cstrong\u003eWIRELESS CONNECTIVITY\u003c\/strong\u003e\n\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eWireless Frequency: \u003cstrong\u003e433MHz\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEncoding: \u003cstrong\u003e1527 \/ 330K selectable\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRF Distance: \u003cstrong\u003e≥100m (open space)\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCompatible with most 433MHz security alarm hosts.\u003c\/p\u003e\n\u003ch1\u003e\u003cbr\u003e\u003c\/h1\u003e\n\u003ch1\u003e🚨 \u003cstrong\u003eALARM STATUS INDICATIONS\u003c\/strong\u003e\n\u003c\/h1\u003e\n\u003ch3\u003e\u003cstrong\u003eNormal Mode\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eLED: 1 blink every 90s\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSound: None\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTesting Mode\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eLED: continuous blinking\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSound: continuous beeping\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eSmoke Alarm\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eLED: continuous blinking\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSound: rapid beeping (loud)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eSound-Off Alarm Mode (Mute)\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eLED: continuous blinking\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSound: off\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eLow Battery\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eLED: 2 blinks per 90s\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSound: 2 beeps\u003cbr\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1\u003e\u003cbr\u003e\u003c\/h1\u003e\n\u003ch1\u003e🛠 \u003cstrong\u003eINSTALLATION GUIDE\u003c\/strong\u003e\n\u003c\/h1\u003e\n\u003ch3\u003e\u003cstrong\u003eInstallation Types:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e✔ \u003cstrong\u003eScrew Installation (recommended)\u003c\/strong\u003e\u003cbr\u003e✔ \u003cstrong\u003eAdhesive Installation (optional)\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eScrew Installation Steps:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cp\u003eDrill holes in the ceiling.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eInsert plastic expansion anchors.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFix the mounting plate using screws.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAttach detector and rotate until you hear a \u003cstrong\u003e“kata” snap\u003c\/strong\u003e.\u003cbr\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003e\u003cstrong\u003eAdhesive Installation Steps:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cp\u003eStick adhesive to mounting plate.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eStick plate to ceiling surface.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRotate detector until it snaps locked.\u003cbr\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch1\u003e\u003cbr\u003e\u003c\/h1\u003e\n\u003ch1\u003e⚠️ \u003cstrong\u003eINSTALLATION PRECAUTIONS\u003c\/strong\u003e\n\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eIndoor installation only\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eKeep \u003cstrong\u003e\u0026gt;50 cm\u003c\/strong\u003e away from lights\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDo NOT install in:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003ebathroom\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ewet areas\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eareas with non-fire smoke\/steam\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eareas below 0°C or above 50°C\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eKeep \u003cstrong\u003e\u0026gt;150 cm\u003c\/strong\u003e from ventilation fans \u0026amp; AC vents\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIf ceiling has cabinets, mount detector \u003cstrong\u003e\u0026gt;60 cm\u003c\/strong\u003e away\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTest weekly using \u003cstrong\u003eTEST\u003c\/strong\u003e button\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1\u003e\u003cbr\u003e\u003c\/h1\u003e\n\u003ch1\u003e🧰 \u003cstrong\u003eMAINTENANCE\u003c\/strong\u003e\n\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eTest weekly using TEST button\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eReplace battery when low-voltage alarm occurs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eKeep surface clean (dust-free, moisture-free)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAvoid installation without battery\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMaintain the adhesive if using adhesive installation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1\u003e\u003cbr\u003e\u003c\/h1\u003e\n\u003ch1\u003e📊 \u003cstrong\u003eTECHNICAL SPECIFICATIONS\u003c\/strong\u003e\n\u003c\/h1\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eSpecs\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eT441R\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensor Type\u003c\/td\u003e\n\u003ctd\u003ePhotoelectric smoke sensor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAlarm Sound\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;80 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWireless Range\u003c\/td\u003e\n\u003ctd\u003e≥100m (open area)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWireless Frequency\u003c\/td\u003e\n\u003ctd\u003e433MHz \/ 1527 \/ 330K\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStatic Current\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;18μA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAlarm Current\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;200mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003e9V Alkaline\/Carbon Battery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003e0°C – 50°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHumidity\u003c\/td\u003e\n\u003ctd\u003e≤95% RH (non-condensing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLow Battery Alert\u003c\/td\u003e\n\u003ctd\u003eLED + Beep + Wireless Signal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch1\u003e\u003cbr\u003e\u003c\/h1\u003e\n\u003ch1\u003e🏠 \u003cstrong\u003eIDEAL FOR\u003c\/strong\u003e\n\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eHomes \u0026amp; Apartments\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOffices \u0026amp; Shops\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWorkshops\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRental Properties\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSchool Rooms\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eStorage Rooms\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1\u003e\u003cbr\u003e\u003c\/h1\u003e\n\u003ch1\u003e🙋 \u003cstrong\u003eFAQ SECTION\u003c\/strong\u003e\n\u003c\/h1\u003e\n\u003cp\u003e\u003cstrong\u003eQ1: Does it work without a full alarm system?\u003c\/strong\u003e\u003cbr\u003e✔ Yes! It works standalone with its own siren.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ2: Can it send wireless alerts to my alarm panel?\u003c\/strong\u003e\u003cbr\u003e✔ Yes—supports 433MHz 1527\/330K alarm hosts.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ3: Is the battery included?\u003c\/strong\u003e\u003cbr\u003e✔ Yes, a 9V battery is included.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ4: How often should I test it?\u003c\/strong\u003e\u003cbr\u003e✔ Test once every week using the TEST button.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ5: Does it detect heat or only smoke?\u003c\/strong\u003e\u003cbr\u003e❌ This is a \u003cstrong\u003esmoke-only\u003c\/strong\u003e photoelectric detector (safer \u0026amp; more accurate for early fire detection).\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProtect your home with fast, reliable fire detection.\u003cbr\u003eGet the T441R Wireless Smoke Detector today!\u003c\/strong\u003e\u003c\/p\u003e","brand":"TREES Enterprise - One Stop Security Solution Provider","offers":[{"title":"Default Title","offer_id":51721772400916,"sku":null,"price":1250.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0967\/2858\/0372\/files\/WhatsApp_Image_2026-03-14_at_14.55.19_2.jpg?v=1774003780","url":"https:\/\/www.treesenterprise.com\/products\/t441r-wireless-photoelectric-smoke-detector-433mhz-stand-alone-battery-powered","provider":"TREES Enterprise - One Stop Security Solution Provider","version":"1.0","type":"link"}