{"product_id":"dc-5v-infrared-proximity-sensor-module-adjustable-photoelectric-switch","title":"DC 5V Infrared Proximity Sensor Module | 10–100cm Adjustable","description":"\u003ch2\u003eDC 5V Infrared Proximity Sensor Module – Active Diffuse Reflection Photoelectric Switch\u003c\/h2\u003e\n\u003cp\u003eUpgrade your automation projects with this compact, reliable \u003cstrong\u003eDC 5V Infrared Proximity Sensor Module\u003c\/strong\u003e (Model: TAD-9128). Using active diffuse-reflection infrared technology, this non-contact sensor instantly detects the presence of a person or object within its adjustable sensing range — no physical contact required. Made in Mainland China, with MCU circuitry designed in Taiwan.\u003c\/p\u003e\n\n\u003ch3\u003eHow It Works\u003c\/h3\u003e\n\u003cp\u003eThe sensor emits an infrared beam and monitors the reflected signal. When a person or object enters the sensing zone, the output switches from \u003cstrong\u003e0V (low)\u003c\/strong\u003e to \u003cstrong\u003e5V high level\u003c\/strong\u003e, triggering your connected device. Once the object leaves the zone, the output resets automatically. A built-in red indicator LED lights up when sensing is active.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAdjustable Sensing Distance:\u003c\/strong\u003e 10cm–100cm (±10% tolerance). Turn the knob clockwise to increase range; counterclockwise to decrease. Note: knob does not rotate 360°.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWorking Voltage:\u003c\/strong\u003e 5V DC — compatible with most microcontrollers and single-board computers\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLow Power Consumption:\u003c\/strong\u003e \u0026lt;1mA static, \u0026lt;5mA dynamic\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSensing Angle:\u003c\/strong\u003e 10–15° cone angle for focused, directional detection\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSimple 3-Wire Connection:\u003c\/strong\u003e\n    \u003cul\u003e\n      \u003cli\u003e🔴 Red wire → Positive pole (VCC)\u003c\/li\u003e\n      \u003cli\u003e⚫ Black wire → Negative pole (GND)\u003c\/li\u003e\n      \u003cli\u003e🟡 Yellow wire → Signal output (5V high level when triggered)\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAvailable in Two Configurations:\u003c\/strong\u003e A (with mounting holes) \/ B (without mounting holes)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Black | \u003cstrong\u003eMaterial:\u003c\/strong\u003e Plastic\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDetection Tips\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDistance:\u003c\/strong\u003e Closer objects reflect a stronger signal and are detected more easily.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Bright\/light-colored surfaces reflect better than dark surfaces.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e Larger objects have greater reflectivity and are easier to detect.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSurface Texture:\u003c\/strong\u003e Rough surfaces tend to be detected more reliably than smooth\/mirror-like surfaces.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\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\u003eTAD-9128\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWorking Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSensing Mode\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eActive Diffuse Reflection\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSensing Distance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10cm–100cm (adjustable, ±10%)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSensing Angle\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10–15° cone angle\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Mode\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0V low (idle); 5V high (triggered)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStatic Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;1mA\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDynamic Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;5mA\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWorking Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRoom temperature\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStorage Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-20°C to +70°C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eColor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePlastic\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMade in Mainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWide Range of Applications\u003c\/h3\u003e\n\u003cp\u003eThis versatile sensor module is ideal for a broad range of automation and smart-device applications, including:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFaucet auto-sensing\u003c\/li\u003e\n  \u003cli\u003eAdvertising light boxes \u0026amp; digital signage machines\u003c\/li\u003e\n  \u003cli\u003eBank and self-service kiosks\u003c\/li\u003e\n  \u003cli\u003eFace recognition terminals\u003c\/li\u003e\n  \u003cli\u003eAutomatic doorbells \u0026amp; doors\u003c\/li\u003e\n  \u003cli\u003eTouchless toilet flushing systems\u003c\/li\u003e\n  \u003cli\u003eAutomatic hand dryers\u003c\/li\u003e\n  \u003cli\u003eTV proximity watching reminders\u003c\/li\u003e\n  \u003cli\u003eDIY electronics \u0026amp; maker projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × DC 5V Infrared Proximity Sensor Module (TAD-9128)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eNote: Color may vary slightly due to lighting and display settings. Measurement tolerance: ±1–3cm.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/10cm-wireless-led-motion-sensor-night-light-type-c-rechargeable-cabinet-wardrobe-lamp-for-staircase-backlight-kitchen-lighting\"\u003e10CM Wireless LED Motion Sensor Night Light – Type-C Rechargeable Cabinet Wardrobe Lamp\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-piece-storage-tray-360-degree-refrigerator-storage-rotating-tray-used-for-kitchen-spice-jars-and-sundry-storage-turntable-1\"\u003e360-Degree Rotating Storage Tray for Kitchen \u0026amp; Refrigerator\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/personal-protective-equipment\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on personal protective equipment\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What voltage does this infrared proximity sensor module operate on?\u003c\/h4\u003e\n\u003cp\u003eA: This sensor module operates on 5V DC, making it compatible with most microcontrollers, Raspberry Pi, Arduino boards, and other 5V-based electronics projects.\u003c\/p\u003e\n\u003ch4\u003eQ: How do I adjust the sensing distance on the infrared proximity sensor?\u003c\/h4\u003e\n\u003cp\u003eA: The sensing distance (10cm–100cm) is adjusted using the onboard knob. Turn it \u003cstrong\u003eclockwise\u003c\/strong\u003e to increase the detection range and \u003cstrong\u003ecounterclockwise\u003c\/strong\u003e to decrease it. Note that the knob does not rotate a full 360°.\u003c\/p\u003e\n\u003ch4\u003eQ: Can this sensor detect all types of objects and surfaces?\u003c\/h4\u003e\n\u003cp\u003eA: The sensor works best with objects that are closer, larger, lighter in color, and have a rough texture, as these conditions reflect more infrared light back to the receiver. Very dark, small, or highly smooth\/glossy objects may have a shorter or less reliable detection range.\u003c\/p\u003e\n\u003ch4\u003eQ: What is the difference between configuration A and configuration B?\u003c\/h4\u003e\n\u003cp\u003eA: Configuration A includes mounting holes for easy installation into enclosures or panels, while Configuration B does not have mounting holes, offering a more compact profile for custom installations.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. 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