Hiletgo 5pcs SW-420 Vibration Sensor Module Vibration Switch Alarm Sensor Module for Arduino

The media could not be loaded. You can adjust the sensitivity, but it seems to lean hard toward the extremes. Just tapping a solid surface can set it off, which I love.

Device does what it should, the adjustment is VERY sensitive. Signal is very brief, but if you’re looking for a quick trigger DO, this does the job

Very good. Very sensitive but not too much false alarm. Sensitivity seems responsive to adjustment. Overall very good device and value.

Worked but not as expected. I can only measure tilt one direction. It would be better if the out put was not analog but digital using a comparator chip.

This works great with arduino and esp products.

I have gone through the hole pack trying to find one that will work consistently. These things are for detecting small vibrations like tapping a finger at one side of a table with the sensor on the other end. The problem I had is they often get stuck in a high state (vibration detected) for minutes on end - in other words if they are perturbed they will register the vibration and go high, but stay high even after all vibration from the system has dissipated. The only way to get it out of the state is to give it another tap/knock. In order to reduce false positives I use two of them and read them back to back (not that simple: involving other logic very specific to my application that gives me only 80 percent accuracy). But really the device has such low fidelity that it is useless for most applications. You can use them in like a "mouse trap" type scenario where you want to measure a vibration event once, but after that vibration is reported you can no longer trust further reads of output of the device as it could be just stuck high.

Very good stuff.

It probably comes as no surprise the sensor is quite directional. This is due to the way it's mounted on the PCB, and the "sensor" itself. I was expecting it to be spring-based like the common SW-18010P/SW-18020P/SW-18030P vibration sensors available from Adafruit. But it's just a "dog-bone" in a tube. You can even see another set of through-holes, presumably for an upright sensor.It's basically impossible to adjust the sensitivity to what you want. The potentiometer does something, but it can't magically fix the useless sensor output. Additionally, as another reviewer mentioned, the comparator occasionally latches high. The signal is always noisy and bouncy. It's a shame, the PCB is nice enough, but it just doesn't work reliably.I'd avoid this. Although it's harder to interface with, an accelerometer is better at detecting vibration/motion. Other vibration sensors containing springs may also be better.