Best Overall · 1 of 5
Schrader AirCheck BLE TPMS Retrofit Kit

- 2 internal BLE sensors + extender
- 738 ft extender range
- Single-axle trailers
Our take
Best for a single-axle trailer that can accept internal sensors.
Why it made the shortlist
Schrader's AirCheck BLE retrofit kit has two internal sensors, a long-range extender and a smartphone app. Schrader's AirCheck BLE retrofit kit includes two clamp-in internal Bluetooth sensors and a long-range signal extender, with smartphone monitoring aimed at single-axle trailers. The listing gives a 738 ft extender range.
It covers a single axle, so add sensors for more wheels.
What works
- Clamp-in internal wheel sensors protect the hardware
- Long-range extender listed at 738 ft
- Smartphone monitoring over BLE
- Expandable within the AirCheck BLE system
Watch out for
- Only two sensors
- Needs tire dismounting to install





