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Original 5pcs Ultrasonic Module HC-SR04 Distance Measuring Sensor for Arduino

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Product Description:

5pcs Ultrasonic Module HC-SR04 Distance Measuring Transducer Sensor for Arduino

Description:

 100% brand new
  Module main technical parameters:
  1.Working Voltage : 5V(DC)
  2.Static current: Less than 2mA.
  3.Output signal: Electric frequency signal, high level 5V, low level 0V.
  4.Sensor angle: Not more than 15 degrees.
  5.Detection distance: 2cm-450cm.
  6.High precision: Up to 0.3cm
  7.Input trigger signal: 10us TTL impulse
  8.Echo signal : output TTL PWL signal

  Mode of connection:
  1.GND
  2.trig(T)
  3.echo(R)
  4.VCC

Use method:
Supply module with 5V, the output will be 5V while obstacle in range, or  0V if not.The out pin of this module is used as a switching output when  anti-theft module, and without the feet when ranging modules.
Note : the module should be inserted in the circuit before been power,  which avoid producing high level of misoperation;if not, then power  again.

Module Working Principle:
1.Adopt IO trigger through supplying at least 10us sequence of high  level signal.
2.The module automatically send eight 40khz square wave and  automatically detect whether receive the returning pulse signal.
3.If there is signals returning, through outputting high level and the  time of high level continuing is the time of that from the ultrasonic  transmitting to receiving. Test distance = (high level time * sound  velocity (340M/S) / 2. 

Note : This module is not suitable to connect with electric power, if  you need to connect this module with electronic power,then let the GND  terminal of this module to be connected first,otherwise, it will affect  the normal work of the module
    

Package Content:

5 x Ultrasonic Module HC-SR04 

5pcs Ultrasonic Module HC-SR04 Distance Measuring Sensor for Arduino
5pcs Ultrasonic Module HC-SR04 Distance Measuring Sensor for Arduino
5pcs Ultrasonic Module HC-SR04 Distance Measuring Sensor for Arduino

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Return Policy If the product you receive is not as described or low quality, the seller promises that you may return it before order completion (when you click "Confirm Order Received" or exceed confirmation timeframe) and receive a full refund. The return shipping fee will be paid by you. Or, you can choose to keep the product and agree the refund amount directly with the seller.

N.B.: If the seller provides the "Longer Protection" service on this product, you may ask for refund up to 15 days after order completion.
Seller Service On-time DeliveryIf you do not receive your purchase within 60 days, you can ask for a full refund before order completion (when you click "Confirm Order Received" or exceed confirmation timeframe).

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Price:  US $10 / piece
Sale Price:  US $5.41 / piece
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