Auto USB Bandenspanning Monitor Systeem TPMS Monitoring Alarm met Externe Sensor Bandenspanning Detector voor Android Navigatie TPMS Android Voiture

Ok

I turned the car on today and I was immediately warned of low pressure in the left rear tyre. I went out to inspect the tyre and found out a screw had gone into the tyre. It is good that the system warned me of abnormal tyre pressure before starting to drive the car.

Die Lieferung ist schneller angekommen als angegeben, die montage erfolgte schnell und es funktioniert sehr gut.

Gut

Well the actual unit works well. I am not sure of the accuracy of the pressure gauges yet as all seem to say the same reading of 32psi ( - I suppose its possible, but I doubt it). I will check with the tyre pressure gauge and add some more air to see the effect & update the review.Each of the 4 pressure gauges that mount on the valve head are clearly marked for each individual tyre position so you cant go wrong there. There is a threaded nut that you put on each valve BEFORE the tyre pressure monitor device. Once the tyre pressure monitor device is on the valve, reverse the threaded nut up to the base of the tyre pressure monitor device and tighten. This is effectively the "anti-theft" mechanism, but to be honest, its more useful in ensuring that the tyre pressure monitor device doesn't work its way off during driving.The application is located on a supplied USB stick. I am using this on an Android head unit and had to go to Android file manager and double click on the APK - the instructions weren't clear/understandable on this. I then had to "accept" the installation from a "non-verified" source - but that applies to Android phones also, where the APK (the app) doesn't come through the Google Play store.Once installed, the application appeared in the Head unit and ran well. Before I installed the tyre pressure monitor devices, the application constantly beeped and showed Red blocks for each tyre. This indicated that the pressure was low - which was correct as they were not installed.After installation, they went Green and the beeping stopped.It is not clear if it is possible to calibrate these devices and I haven't determined what it considers to be the low pressure threshold.The biggest gripe I had was in the instructions. Really really bad translation - And I mean that. I can usually work through reasonably bad translations but this really was a challenge.So please bear in mind when considering purchasing this - especially if you are not technically minded.