IR Break Beam Sensor with Premium Wire Header Ends

The QT30CM Infrared Trans­mis­sive Pho­to­elec­tric Sen­sor Mod­ule is a com­pact and effi­cient sens­ing solu­tion that uses an infrared emit­ter and receiv­er pair to detect object pres­ence through light inter­rup­tion (IR cor­re­la­tion). When an object pass­es between the trans­mit­ter and receiv­er, the sen­sor instant­ly changes its out­put state, pro­vid­ing fast and accu­rate detec­tion.Oper­at­ing at 4.5V–5.5V DC, this mod­ule fea­tures an NPN nor­mal­ly open out­put and can direct­ly dri­ve relays up to 70mA. Its fast response time of only 2ms ensures high reli­a­bil­i­ty in automa­tion sys­tems. With a nar­row emis­sion and receiv­ing angle, the QT30CM offers pre­cise detec­tion with min­i­mal inter­fer­ence from ambi­ent light.Designed for indoor use, the sen­sor is easy to inte­grate with Arduino, Rasp­ber­ry Pi, and oth­er con­trol boards, mak­ing it an excel­lent choice for both begin­ners and pro­fes­sion­als.Key FeaturesDetec­tion dis­tance: 2–30cmInfrared light inter­rup­tion (IR) sens­ing methodSta­ble and accu­rate object detec­tionFast response time (2ms)NPN nor­mal­ly open out­put (HIGH / LOW)Can direct­ly dri­ve relays (up to 70mA)Com­pact size and light­weight designLow pow­er con­sump­tionEasy wiring and instal­la­tionArduino and micro­con­troller com­pat­i­bleTechnical SpecificationsMod­el: QT30CMSens­ing Method: Infrared light inter­rup­tion (IR)Oper­at­ing Volt­age: DC 4.5V – 5.5VEmis­sion Cur­rent: 20mAReceiv­ing Cur­rent: 10mAOut­put Type: NPN nor­mal­ly openOut­put Cur­rent: 70mAEmis­sion Angle: < 5°Receiv­ing Angle: < 10°Response Time: 2msWork­ing Tem­per­a­ture: ‑10°C to 60°CWork­ing Envi­ron­ment: Indoor (not water­proof)Dimen­sions:Length: 20mmWidth: 10mmHeight: 8mmCable Length: 30cmWork­ing Life: Up to 50,000 hoursWiring InstructionsRed wire → VCC (5V)Black wire → GNDYel­low wire → OUT (Sig­nal Out­put)