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2pcs Ultrasonic Sensor Module HC-SR04 for Arduino, Distance Sensors with 2pcs Mounting Bracket Compatible with Mega2560, Robot kit, for ZigBee (2)If you need more information, please contact us via email to get support. Parameters: 1. Use voltage: DC5V 2. Quiescent current: less than 2mA 3. level output: high 5V low 0V 5. Induction angle: no more than 15 degrees 6. Detection range: 0.78-196 in/ (2cm~500cm) 7. High accuracy: up to 0.12 in/(0.3 cm) 8. Connection mode: VCC, trig (control), echo (receiving end), GND ground wire Module working principle: Pull the Trig pin to high level for more than 10us impulse, the module start ranging. The module automatically sends eight 40KHz square wave to detect whether a signal is returned. Finished ranging, If you find an object in front, Echo pin will be high level, and based on the different distance, it will take the different duration of high level. So we can calculated the distance easily.The distance = ((Duration of high level)*(Sonic :340m/s))/2 Dimensions: 1.3 x 0.4 x 0.1 inch/3.03 x 1 x 0.25 cm (L*W*H) Package included: 1) HC-SR04 Distance Sensor x2 2) Cartoon Mounting Bracket(Support HC-SR04 only) x2 3)Male to Female Jumper Wires x10Key features- The detection zone: 0.78~196 in/ (2cm-500cm); High precision: up to 0.12 in/(0.3 cm) Effectual angle: less than 15- Test mode :Using IO trigger for high level signal.( Not less that 10us),The Module sends eight 40 kHz automatically and detect whether there is a pulse signal back.- Power supply: 5V DC; Quiescent current: less than 2mA.- Test distance = ((Duration of high level)*(Sonic :340m/s))/2- Package included: 2pcs HC-SR04+ 2pcs Mounting Bracket(support HC-SR04 only)Benefits- Enhances everyday usability- Delivers consistent and reliable performance- Built to support long term use- Simple and practical designProduct details2pcs Ultrasonic Sensor Module HC-SR04 for Arduino, Distance Sensors with 2pcs Mounting Bracket Compatible with Mega2560, Robot kit, for ZigBee (2) is manufactured using dependable materials and practical technology to ensure stable performance and durability.How to use- Unbox the product and verify all components- Set up according to basic usage requirements- Operate the product as intended- Clean and store safely after useReady to buyAdd the 2pcs Ultrasonic Sensor Module HC-SR04 for Arduino, Distance Sensors with 2pcs Mounting Bracket Compatible with Mega2560, Robot kit, for ZigBee (2) to your cart today and experience reliable quality and everyday value.