[Industrial-Grade Accelerometer+Inclinometer] HWT905-TTL MPU-9250 9-axis Gyroscope+Angle(XY 0.05° Accuracy)+Digital Compass with Kalman Filter, Temperature&Magnetometer Compensation, IP67 Waterproof

This accelerometer works as info provided by manufacturer. Really easy to setup and it has excellent sensitivity and performance. The only thing doesn't work is when you try to run a data file saved or try to convert this data; but it save data in txt format and you can manipulate it whatever you want!

Tiene buena versatilidad para el monitoreo de vibraciones o inclinación con el uso del celular.

Working on re-writing our code to make it work with these units.

My recent HWT905-TTLs through amazon purchase had sketchy firmware running on them; On one of them, FW=14408, the wall/vertical mode gives odd results. The other purchased a couple months after, FW=10515, I just can't get accurate readings from it at all.I did get the correct factory FW, WT925.bin from tech support, but I have tried their provided FW upgrade process--twice, resulting in dead sensors both times. There's no way I'm touching the sensor with FW=14408. Although tech support has been generally responsive, I wish the exchange/return policy was a little better. Or at least be able to send the sensors back to have the company upgrade the firmware to proper spec. If they were better about that, I would probably give this sensor '5 stars', because the construction is solid, and it for what it does, it can be calibrated to work well.Edit: The engineering & tech support was really great in helping me resolve the problems. OK: first of all the correct FW actually is 10515. They gave me a different MiniIMU program + the 10515 FW which worked like a charm to reburn this FW. They even stayed on-line to make sure it worked. :-). After that, just make sure to calibrate specifically to the mode you want to operate it on (Wall or Horizontal) with the original upgradable standard miniIMU PC software. After Elliptical calibration the sensor performance is rock solid in either mode.