SMAKN&reg; Ultrasonic Module HY-SRF05 Distance Sensor for Arduino UNO R3 MEGA2560 DUE Detection distance: 2cm-450cm; Electronic brick compatible interface; Breadboard friendly ; Dual transducer ; Arduino library ready Working Voltage : 5V(DC); Static current: Less than 2mA. Output signal: Electric frequency signal, high level 5V, low level 0V. Sensor angle: Not more than 15 degrees. High precision: Up to 0.3cm; Working temperature:-20C--+60C; Size:4 5x 21mm( L x W) Package includes: 1 x New Arduino Ultrasonic Module HY-SRF05 Distance Sensor