One of the sensor not working

The front right sensor had a very high reading for 1 day then cannot be connected. Is it because the battery is dead or something wrong with the tire? Kindly advise. Thank You

Hello chow,
To test if it’s the battery issue, you could try pull one battery from any of the other three and insert in this malfunction one, see if you can get the green led back on the car shape receiver for the corresponding tyre.

I tried, it said cant detected the sensor, the other sensor said low on battery. Can I purchase just the sensor instead of the whole package, so I can just replace the faulty one. Am worried as before it was disconnected, the sensor reading was extremely high in both psi and temperature. Thanks