Knock or crash detect sensors are very popular in the applications where you want to ensure the safety of the equipment or the person operating that equipment in event of a crash or excessive vibration which can cause damage to any of them. The Ky031 Knock Sensor Module does exactly the same thing. It has a wire enclosed in a glass enclosure which gets shorted and complete the circuit if the vibrations exceed a certain limit thereby sending a signal on the output pin which can be read by your microcontroller such as Arduino, Raspberry Pi etc. You can set for time delay or the number of instances the output is coming in your program logic to activate the safety devices accordingly. This module can work on both 5V and 3.3V power supply and is extremely easy to use.
Specifications
Product Description

Package Contents
1× Ky031 Knock Sensor Module
Due to the type of products we sell, we accept limited returns. Below are the conditions where we can accept a return request.
If you receive a product damaged during shipment, please notify us within 3 days of receiving the product, supported by proper pictures and a description. Once our support team accepts the return, we will provide a replacement or a complete refund, including the return shipping cost.
If your item looks different from what is shown in the image on our website, we will take the item back and provide a refund or replacement as per your choice.
We don’t accept returns for products damaged due to improper use. Moreover, we don’t accept returns if the ordered product is not suitable for a specific application. Please read the product specifications and datasheet carefully before placing an order. Returns are accepted only within 3 days from the date of delivery.
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Note: The minimum order value for COD orders is ₹500.