Review on Pressure Monitoring Universal Wireless Power_External by Aaron Moore

I wanted this for my camper with 65psi tires. The description states that the pressure is up to 6 bar (87 psi). I only need 2 channels, but usually 4 channels is standard. I think I will have 2 spare sensors. 1 sensor did not work despite changing the battery. They ship 4 spare batteries in a box. The maximum reading from the sensors was 51 psi. inches and 52psi I am assuming 50psi is the actual max pressure. The final straw to send back aside from the broken sensor is that without a mute button, the device beeps an obnoxiously loud alarm when battery voltage is low.