{"product_id":"d203b-dual-element-pir-sensor-for-alarm-systems","title":"D203B Dual Element PIR Sensor for Alarm Systems","description":"\u003ch1\u003eD203B Dual Element PIR Sensor for Motion Detection\u003c\/h1\u003e\n\n\u003cp\u003eThe D203B is a dual-element passive infrared (PIR) sensor designed for motion detection in alarm systems and automation projects. It detects changes in infrared radiation emitted by moving objects like people or animals, providing a digital output when motion is sensed. With high sensitivity and low power consumption, it's ideal for battery-powered security devices.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003e3V - 6V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eDetection Range\u003c\/td\u003e\n\u003ctd\u003e3 - 7 meters\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eDetection Angle\u003c\/td\u003e\n\u003ctd\u003e110°\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eOutput Signal\u003c\/td\u003e\n\u003ctd\u003eDigital high\/low (3.3V TTL)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-20°C to +70°C\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhat You Can Build With This\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eHome intrusion alarm with buzzer and LED indicator\u003c\/li\u003e\n  \u003cli\u003eAutomatic room light controller\u003c\/li\u003e\n  \u003cli\u003eSmart IoT motion notifier using ESP8266\u003c\/li\u003e\n  \u003cli\u003ePet detection system for automatic feeders\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis PIR sensor works seamlessly with any microcontroller that accepts 3.3V or 5V logic, including Arduino Uno, ESP32, and Raspberry Pi. It is commonly paired with relay modules to control lights, or with wireless modules for remote alerts.\u003c\/p\u003e\n\n\u003ch2\u003eWiring Notes\u003c\/h2\u003e\n\u003cp\u003eConnect VCC to 5V (or 3.3V), GND to ground, and OUT to a digital input pin. No external pull-up or pull-down is required as the sensor output is active high. Some modules include a sensitivity adjustment potentiometer and a delay timer; adjust according to your application.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Buy from Compoden\u003c\/h2\u003e\n\u003cp\u003eEvery component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-5 days. If defective on arrival, replace within 7 days.\u003c\/p\u003e\n\n\u003cdetails\u003e\u003csummary\u003eIs this compatible with Arduino?\u003c\/summary\u003e\u003cp\u003eYes, simply connect OUT to any digital input pin and read the state. No additional library is required.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat is the detection range?\u003c\/summary\u003e\u003cp\u003eThe D203B typically detects motion from 3 to 7 meters, depending on the environment and the sensitivity setting.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eDoes it work with battery-powered projects?\u003c\/summary\u003e\u003cp\u003eAbsolutely. With a quiescent current under 50µA, it's well-suited for low-power applications using 3V to 6V batteries.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdiv class=\"compoden-handoff\" style=\"margin-top:24px;padding:16px;background:#f0f4ff;border-left:4px solid #2B4D8F;border-radius:4px;\"\u003e\n  \u003cp style=\"margin:0 0 6px 0;font-weight:600;color:#1A3560;\"\u003e📦 Free Setup Handoff Document Included\u003c\/p\u003e\n  \u003cp style=\"margin:0;font-size:0.95em;color:#333;\"\u003eEvery Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.\u003c\/p\u003e\n\u003c\/div\u003e\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53444957995373,"sku":"CDN-0310","price":60.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/image_1_043e460c-0181-4880-885f-6e4f49bdced8.jpg?v=1781512433","url":"https:\/\/compoden.com\/products\/d203b-dual-element-pir-sensor-for-alarm-systems","provider":"Compoden","version":"1.0","type":"link"}