Specifications: 
a. HC-SR04

1: Operating voltage: DC5V

2: Static current: less than 2mA

3: Level output: 5V high

4: Level output: bottom 0V

5: Induction angle: not greater than 15 degrees

6: Detection distance: 2cm-450cm

7: High precision: up to 0.3cm

  
b. HC-SR04P
Description:
HC-SR04-P is a wide range of ultrasound working voltage measuring module distance. Module size and software is fully compatible with the old HC-SR04 version. It can be perfectly interrupted with the old HC-SR04 version.
Low to 3V minimum operating voltage, so that it can be directly connected to the 3.3V powerMCU.

feature:
High operating voltage: 3 V-5.5 V
With software and hardware HC-SR04 size is fully compatible

Detection distance:
5 V: 2 cm-450 cm
3.3 V: 2 cm to 400 cm
Detection angle: <15
Use of industrial grade MCU, operating temperature: -20-80 degrees Celsius

Note:
1: This module does not have to be charged connection, if you want to live connection, then let the Gnd module end connection first. Otherwise it will affect the form's work.
2: When they go, the area of ​​the measured object is not less than 0.5 square meters, and to be as easy as possible.
3: If the test surface is irregular or remote test objects, multiple measurements can be used to correct it.

Package include: 
1 x Ultrasonic Sensor Module
 
Payment:
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Payment must be completed within 7 days.
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Shipping:
We Ship to Worldwide.
Orders processed within 24-48 hours of payment verification. it will take 15-25 days for delivery. but Customs will random inspection some parcel, so that's why some parcel need more than four weeks to arrive. Shipping time is only estimated and not guaranteed.
We only ship to confirmed PAYPAL addresses. Your PAYPAL address MUST MATCH your Shipping address.
Package to USA will Shipping by E-Package with Tracking Number(7-15 Days to Delived). To other Countries will shipping by Post Air Mail without tracking number(ONLY when the order is over 20USD will supply Tracking Number Shipping Way!)(15-35 Days to Delived)
Items are shipped via China Post Air Mail.
Guarantee:
Good Good quality. Buy with confidence!
If you are not satisfied when you receive your item, please return it within 7 days for a replacement or money back. Please contact me before you return it.
Not accept returning of electronic components.
Full refund after we receive our original item, Note: Return shipping is to be paid by the Buyer.
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