There are 2 types of TMPS, the expensive ones that you will have fitted inside the wheel and the ones fitted on the valves.
While the first ones seem to be more precise and less fuss when you need to top up the pressure they are more expensive.
The ones fitted on the valve are far cheaper but will have to be removed when you want to add some air.
If you search, there are some that will have a double valve which allow adding air without removing the sensor.
Example of external TMPS:
2019 2017 Newest LMYSTAR TN300 Wireless Tpms Tire Pressure Monitor System Tmps With Internal Sensors For All Car From Muju, $97.49 | DHgate.Com
While the first ones seem to be more precise and less fuss when you need to top up the pressure they are more expensive.
The ones fitted on the valve are far cheaper but will have to be removed when you want to add some air.
If you search, there are some that will have a double valve which allow adding air without removing the sensor.
Example of external TMPS:
2019 2017 Newest LMYSTAR TN300 Wireless Tpms Tire Pressure Monitor System Tmps With Internal Sensors For All Car From Muju, $97.49 | DHgate.Com
