Terrible seller. I ordered vibration sensors and received temperature sensors. I contacted them through messages - they reply every 2 days and are not really communicative. They keep saying that they sent the proper items BUT I had to record a video and explain that I ordered VIBRATION and NOT temperature. At the end I opened a disputed as they were not reactive to my messages and I asked for a full refund, and they insulted me - saying that I just wanted the items for free. NO I DID NOT WANT THE ITEMS FOR FREE, I JUST WANTED THE GOODS I ORDERED !! So do NOT insult me and assume wrong things. You did not even recognize that you made a mistake. I DO NOT RECOMMEND THIS SELLER !! REALLY BAD CUSTOMER SERVICE. First time I face a bad seller on Ali Express.
Basically not really working, after several minutes it stops reporting it's state and doesn't do so even after several resets.