KDator with Repeaters BLE TPMS Auto Car Bluetooth 4.0 TPMS Tire Pressure Monitoring System with 4 External Sensors Alarm Warning by Bluetooth 4.0 for iPhone iOS Android Mobile Phone APP VC601C

The box had been opened before, both seals on each end opened. I bought these because i need to run on tires with 90 PSI and theses are advertised as Tire Pressure Detection Range: 100-1300kPa, 1300Kpa is 188 PSI so plenty of coverage.The problem is the software will only allow you to set maximum PSI 92.8 and minimum to 36.2 PSI, so they are not as advertised and no good for my application. Definitely misleading advertising and that should not be allowed by Amazon. This supply came from Amazon Warehouse so be very, very careful when buying.I tested them, one TPMS would not function, I suspected a low battery because the readings on the other three units were 2.8 volt. Change the battery and all four paired easily.The temperature readings are way off, ambient temperature is 70 degrees today, tires have not been run and one unit gives temperature over 100 degrees. Tested in Garage so no direct sun on any of the tires.I like the concept, the pairing is easy, app seems. English instructions appalling but common sense.Will need to return. Pity.

As described