[RS485 Modbus Vibration Sensor] WTVB01-485 IP68 Waterproof Transducer Ar-Duino, 3-Axis Acceleration Angular Velocity Vibration(Amplitude+Frequency+Displacement+Speed) Detector, Motor Monitor Module

I bought the WTVB01-485 model, which I thought would include a vibration (velocity) meter in my product. This module can measure vibration (Velocity and displacement) RMS in mm/s. However, the resolution of the velocity in mm/sec is an integer value of 1 mm/sec. It does not allow to obtain decimals, which is not very convenient when the readings want to compare with the ISO 10816 standard. To be professional equipment, the velocity measurement must be read with at least one decimal resolution, and two decimal places would be very convenient.Could you improve the product by including in the speed at least one decimal resolution example in the range of 0.0 to 49.9 mm/sec or better, 0.00 – 49.99 mm/sec?

I got this in order to monitor the vibration on a CNC machine that I'm building. The sensor comes with an RS-485 to USB converter already connected. It also comes with a large magnet to attach the sensor to what you want to monitor. The tricky part of using this sensor is finding the documentation and software to use it. The manufacturer's website doesn't make it easy to find the documentation and software. Searching by the device number yields no results. To find the software, go to the website, click on support, then wiki. Recommended. 5 stars.

I debated with myself on what direction to take this review, since I often need to develop instrumentation plans/systems for vibration and modal analyses. I'm going to try not to be too harsh and take into account the price point and target buyer of something like this.To be clear, this is not a precision instrument like something from PCB, Wilcoxon, or even Omega- but then it's not priced like those brands either. There's no calibration sheet and the published specifications that can be found on this device are woefully inadequate.Some considerations:1. I sincerely doubt that anyone doing important measurements (i.e. your job depended on it, high cost of failure, or safety is at risk) would be using bargain sensors from Amazon.2. Measurement frequency range is stated at 1-100Hz- which could be used for condition monitoring for some failure modes of rotating machinery- depending on RPM.3. The build quality is not bad and the kit includes a RS485 to USB converter. It also includes a thick, preinstalled aluminum mount plate with M8 tapped hole (no mounting stud included) and a weighty magnetic attachment plate with an M8 bolt (to attach to the M8 tapped hole).4. Weight of the instrument (cable attached, but not weighed) and preinstalled plate is 123g and with the addition of the magnetic mount, total weight is 250g. This is not for delicate work. Ideally, your instrument should <<1/10th the weight of the test article.5. They have a wiki and github with some (inadequate) documentation and SDK/sample code. Documentation aside, the code and SDK are reasonably useful. One big complaint is that their SDK documentation/code does not specifically say which device uses what. For instance, they have 3 MODBUS 'protocols': standard, high precision, and HWT101. Looks like the common registers are the same, but otherwise, not sure the difference.6. A big plus is that they have sample code for various languages/platforms, such as C++, python, Matlab, Arduino, and ROS(!!).7. Also from the wiki you can download their windows desktop app. It's a mixed bag. Yes, it can display the live measurements, make plots, and save data. But some features are poorly explained or not explained at all and even with English chosen, some prompts and dialogs are in Chinese. For instance, I tried to change the "Detection Cycle" to 100 Hz (I guess that's supposed to be the sample/update rate??) and it yelled at me in Chinese and the only part I could understand was 15Hz. I upped the baud rate all the way to 230400 and it allowed 100Hz.8. Nowhere can I find any information on the sensor/accelerometers themselves. I suspect it's something like an MPU6050.In summary, nice kit, but not sure who will be using this. For me, it's for hobbying and having a live MODBUS server to test code with.

Had to fiddle with it alittle to get it happy and after it was all set up it did work correctly. The overall resolution is alittle lacking but it really depends on your use case. If you intending to use this under stricked conditions for exact results im inclined to believe you know this isnt the answer but if you looking to pinpoint a vibration over a large area or systematically tackle some sort of resonance within a machine. I think this is a fairly cheap universal tool for troubleshooting. Be creative in your use case and im sure you can fine a potential value in it at this price point.

This witmotion sensor is durable and well-made. It works perfectly with what we use it for, however, I did find it a bit hard to find the documentation and software to use it. The manufacturer’s website was of little assistance, but as mentioned from a previous review, it should be found after going to the website > support > wiki. So, it should be there unless it changes.

This sensor is very well made and comes with some very useful software, however the software is not included in the box and is not easy to find. I don't think I am allowed to directly link to it here, but the software, code and manuals for this product can be found under the confusingly named "Tutorial Link" on the manufacturer webpage for this product.

The vibration sensor seems well made, and Husband has plans to use this with several of his electronics projects. He did have some difficulty locating the software but now everything is working as advertised.

I have only gotten to play with it and test it with some stuff in my lab, I believe it will work well doing testing and finding machinal issue with vibrations. and I might be able to use it with the DIY earth quack project I been working on