HC-SR04 Ultrasonic Distance Sensor: Power Supply: 5V DC; Quiescent Current : <2mA; Effectual Angle: <15°; Detection Distance: 2 – 500cm; Resolution: 0.3cm
All in One Designed: HC-SR04 Consists of Ultrasonic Transmitter, Receiver, and Control Circuit;When Trigged it Sends Out a Series of 40KHz Ultrasonic Pulses and Receives Echo from an Object.
Easy to Install: HC-SR04 Ultrasonic Distance Sensor with 4 Pins: VCC; Trig(Control Side); Echo (Receiver); Out (Empty); GND; Small Size Designed,Easy for Embedded Installation.
Applications: HC-SR04 Ultrasonic Distance Sensor Widely used for Robot Obstacle Avoidance, Object Distance Measuring, Liquid Level Detection, Public Security, Parking Lot Detection etc.
Package Contents: You will Get 10pcs HC-SR04 Ultrasonic Distance Sensor,1pc 10pin Cable 20cm(M-F) and 1pc 10pin Cable 20cm(F-F)

Specification:

Power Supply: DC 5V
Quiescent Current : <2mA
Effectual Angle: <15°
Ranging Distance: 2 – 500cm
Trigger Input Pulse Width: 10uS
Resolution : 0.3cm
Dimensions: 1.3 x 0.4 x 0.1in / 3.03 x 1 x 0.25cm (L*W*H)
Connection: VCC/ Trig(T)/ Echo(R)/ GND (VCC: 5V; GND is Ground Wire; TRIG is Trigger Control Signal Input;, ECHO is Echo Signal Output.)