USPRO&reg; US-100 Ultrasonic Sensor/Ultrasonic Rangefinder/Ultrasonic Module /With temperature compensation for Arduino ChipUS-100;Fit forMCU Pins Number5;Working Voltage2.4-5.5V;Current2mA Detection Range2-450cm;Detection Accuracy0.3cm1% Working Temperature-20~+70 Borad PCB Size45 x 20 x 1.6mm/1.8"x 0.8"x0.06" (L*W*H)