{"product_id":"optex-fit-wired-outdoor-compact-pir","title":"OPTEX FIT WIRED OUTDOOR COMPACT PIR","description":"\u003ch2\u003eOptex FTN-ST Wired Outdoor Compact PIR: Short-Range Curtain Detection with Pet Immunity\u003c\/h2\u003e\n\u003cp\u003eStandard motion sensors cast a wide detection cone that picks up everything within a broad arc. For protecting a specific entry point like a front door, window, or balcony railing, that broad coverage creates more problems than it solves: pedestrians on the pavement trigger alerts, passing vehicles set off false alarms, and the sensor becomes something you learn to ignore rather than trust. The \u003cstrong\u003eOptex FTN-ST\u003c\/strong\u003e takes a fundamentally different approach with \u003cstrong\u003eshort-range curtain detection\u003c\/strong\u003e that creates a narrow, vertical detection plane directly in front of the protected opening. Anything that passes through that invisible curtain triggers the alarm. Everything outside it gets ignored.\u003c\/p\u003e\n\u003cp\u003eDetection range is \u003cstrong\u003eswitchable between 2 metres and 5 metres\u003c\/strong\u003e using interchangeable lenses built into the unit, letting you match the coverage precisely to the depth of a doorway recess, window ledge, or balcony. A shallow window alcove gets the 2-metre setting. A wider entrance or patio door gets the 5-metre lens. One sensor model covers both scenarios without buying separate units for different positions around the property.\u003c\/p\u003e\n\u003cp\u003eFalse alarm reduction is where the FTN-ST separates itself from generic outdoor PIRs. The unit uses Optex's \u003cstrong\u003eSuper Multi Dimension Analysis (SMDA) logic\u003c\/strong\u003e, which digitally processes the infrared waveform of every detected movement before deciding whether to trigger. Rather than reacting to any temperature change in the detection zone, the sensor analyses the shape, speed, and thermal signature of what moved. Reflections from direct sunlight, air currents from HVAC units, and vegetation swaying in the wind are all recognised and filtered out. Optex claims this processing makes the sensor's \u003cstrong\u003eenvironmental response 24 times more effective\u003c\/strong\u003e than conventional single-element PIR designs.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePet immunity\u003c\/strong\u003e works through a dual-beam architecture. The sensor generates \u003cstrong\u003eseparate upper and lower passive infrared beams\u003c\/strong\u003e, and both must register a presence simultaneously to trigger an alarm. A cat walking along a wall, a dog crossing beneath the sensor, a bird landing on a windowsill, or a fox passing through the garden will only break one beam at a time due to their smaller body profile. A human walking upright breaks both beams, triggering the alert. This physical filtering method is inherently more reliable than software-based pet immunity that relies on signal amplitude alone.\u003c\/p\u003e\n\u003cp\u003eThe body is remarkably compact at just \u003cstrong\u003e100 grams\u003c\/strong\u003e, slim enough to sit inside a window or door recess without protruding. The \u003cstrong\u003ebuilt-in mounting bracket rotates 190°\u003c\/strong\u003e, giving you fine control over the sensor's aim during installation without needing separate adjustable hardware. Recommended \u003cstrong\u003emounting height is 0.8 to 1.2 metres\u003c\/strong\u003e, which places the detection curtain across the body height of an adult entering through a door or climbing through a window.\u003c\/p\u003e\n\u003cp\u003eAs a \u003cstrong\u003ehardwired sensor\u003c\/strong\u003e, the FTN-ST connects to any standard alarm panel via its \u003cstrong\u003eselectable normally closed or normally open relay output\u003c\/strong\u003e. A separate \u003cstrong\u003etamper output\u003c\/strong\u003e opens the circuit if the cover is removed, alerting the panel to physical interference with the sensor. Current draw peaks at just \u003cstrong\u003e17 mA on 12 VDC\u003c\/strong\u003e, so the unit adds negligible load to an alarm panel's power budget even when running alongside multiple other sensors on the same zone bus.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDouble conductive shielding\u003c\/strong\u003e inside the housing protects the sensor electronics from external electromagnetic interference, which matters in installations near electrical switchgear, air conditioning compressors, or other sources of RF noise that can cause phantom triggers on unshielded sensors.\u003c\/p\u003e\n\u003cp\u003eThe unit carries an \u003cstrong\u003eIP55 weather rating\u003c\/strong\u003e and operates from \u003cstrong\u003e-20°C to +60°C\u003c\/strong\u003e, suitable for permanent outdoor installation in all South African climate zones. Detectable movement speed ranges from \u003cstrong\u003e0.3 to 1.5 m\/s\u003c\/strong\u003e with a thermal sensitivity of \u003cstrong\u003e2.0°C at 0.6 m\/s\u003c\/strong\u003e, calibrated to reliably detect a human walking at normal pace while filtering out slower environmental changes like gradual temperature shifts or creeping shadows.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFTN-ST\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSeries\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOptex FTN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDetection Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePassive infrared (dual beam)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDetection Coverage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 m or 5 m (switchable lens)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDetection Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eShort-range curtain\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDetectable Speed\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.3 to 1.5 m\/s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSensitivity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2.0°C at 0.6 m\/s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePet Immunity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes (dual upper\/lower beam)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProcessing\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSMDA (Super Multi Dimension Analysis)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShielding\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDouble conductive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Input\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e9.5 to 18 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCurrent Draw\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e17 mA max (at 12 VDC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAlarm Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eN.C. \/ N.O. selectable, 28 VDC 0.1 A max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTamper Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eN.C., 28 VDC 0.1 A max (opens on cover removal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAlarm Period\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2.0 ± 1.0 sec\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarm-Up\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eApprox. 60 sec (LED blinks)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLED Indicator\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLight\/blink during warm-up and alarm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMounting Height\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.8 to 1.2 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBracket Rotation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e190°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOutdoor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProtection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIP55\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temp\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-20°C to +60°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHumidity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e95% max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAccessories\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 × screws (3 × 20 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003ePrecision perimeter detection for doors, windows, and balconies without the false alarms that make homeowners distrust their own security system. \u003cstrong\u003eBuy the Optex FTN-ST outdoor PIR sensor online\u003c\/strong\u003e at NeonSales, delivered across South Africa.\u003c\/p\u003e","brand":"OPTEX","offers":[{"title":"Default Title","offer_id":48943634350320,"sku":"7578","price":949.0,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/2651\/0008\/files\/FTN.webp?v=1783001821","url":"https:\/\/neonsales.co.za\/products\/optex-fit-wired-outdoor-compact-pir","provider":"NeonSales","version":"1.0","type":"link"}