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Original New Ultrasonic Module HC-SR04 Distance Measuring Transducer Sensor for Arduino

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Availability: in stock
Price:  US $6 / piece
Sale Price:  US $ 1.70 / piece
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Features:
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.
Adopt IO trigger through supplying at least 10us sequence of high level signal.
The module automatically send eight 40khz square wave and automatically detect whether receive the returning pulse signal.
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.

Specification:
Work Voltage: DC 5V
Static Current: <2mA
Level Output: 0-5V
Sensor Angle: ≤15 degree
Detecting Distance: 2-450cm

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Post Air Mail Free Shipping 15 - 45 days
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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 $6 / piece
Sale Price:  US $ 1.70 / piece
from AliExpress
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