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    2020-07-05 17:47:27

    This module will be used for presence detection activating a ventilator when the room temperature is over 22C. This is made possible when you connect this sensor to a esp board and integrate this with Home Assistant where the automation is created and maintained. This module is of high quality and I would recommend it to everyone.

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    2020-07-08 02:43:31

    Tested positively until 3 meters, using Arduino's "NewPing" library, good precision. Mounted on a known distance, it can be used to measure sound's actual speed in the given air's temperature and humidity. Distances are meant from the forward border of the ultrasonic capsules: in the image, an example on 10 cm. Provato senza problemi fino a 3 metri di distanza, usando la libreria di Arduino "NewPing", con discreta precisione. Montato su una distanza nota, si può usare per misurare la effettiva velocità

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    2020-07-01 03:10:20

    bien reçu, bien embalè, toute est en ordre un site a conseiller

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    2020-03-17 22:12:52

    vamos a sonar ;)

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    2020-01-17 08:06:03

    package is not good , this is electronic products. not safe for them.

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    2019-12-06 23:22:34

    good packaging. Thank you Bannggood

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    2019-10-18 02:45:27

    very fast delivery and i love this

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    2019-10-03 09:53:19

    Great. Working good

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    2019-08-16 10:02:08

    Thank you Banggood for your amazing services.. I received all couriers as soon as fast from you... in this product I received only one Ultrasonic instead of two remaining all are I received correctly.. please consider this hope you will not repeate again. I received one empty cover

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    2019-10-23 07:39:33

    Szép állapotban, sértetlenül érkezett meg. Tökéletesen működik.

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