I've been using the Hawkshead tpms this year. Had to replace a faulty sensor within the first three weeks. The sensor on the trailer's right front tire will cause a no-signal warning occasionally, particularly after sitting for a few days. I remedy this by unscrewing the sensor and then screwing it back on. This has always worked. I suspect it is a problem with the valve stem as opposed to the sensor.
Rig: '97 30' Limited
Towed by: '13 Silverado 2500 Duramax