DollaTek HC-SR04 Ultrasonic Module Distance Measuring Transducer Sensor for Arduino

• This Ultrasonic Sensor instantly detect obstacles with the microcontroller of your choice!
• Power supply: 5V DC, quiescent current: <2mA,effectualangle: <15 ranging distance: 2cm~500 cm resolution: 0.3 cm
• Arduino-compatible; Note: This is not original Arduino product.it is only a substitute accessories from DollaTek

Features: 100% brand new and high quality DC 5V Ultrasonic module HC-SR04 distance measuring transducer sensor for arduino Power supply :5V DC Quiescent current : <2mA Effectual angle: <15° Resolution : 0.3 cm Mode of connection:VCC, trig(T), echo(R), GND The basic operation principle is below: 1.use IO port TRIG to trigger ranging. It needs 10 us high level signal at least 2.Module can send 8 pro 40 kz square wave automatically, and will test if there is any signal returned. 3.If there is signal returned, output one high level signal via IO port ECHO. The duration of the high level signal is the time from transmitter to receiving with the ultrasonic. Package Included: 1x DollaTek HC-SR04 Distance Sensor Module