B-Qtech Tire Pressure Monitoring System for RV Trailer, with 6 Tire Pressure Sensors, Solar/USB Charging TPMS Wireless Monitor, 6 Alarm Function and Real-time Display Tire Pressure and Temperature.

I purchased this as a Christmas gift and 30 day return limit expired before Christmas. No return.There are NO instructions that are of any use - the book does not even show you how to convert from BAR to PSI or C to F temp settings. The ON button does not work. Stumbled on reset by holding two buttons down to get it to turn on - and it alarms non-stop on BAR setting for passenger tire while my RV uses almost double the pressure in a truck tire. USELESS.No videos or instructions anywhere online - other units, but not this one. Couldn't even cross link the instructions from other units to this one.I wasted about 4 hours fighting with the system and lost $120 and got nothing for it but aggravation and useless return policy.

I have lost two sensors and am having no response on how to replace/purchase new ones.

@ of my sensors are leaking (#2, #5). unit is less than a year old. how do i get replacement?

Purchased these for my RV. On our second trip, two of the six sensors stopped working. Then we blew a tire on the highway with my wife and three small children on board. And yes, it was one of the tires that the sensor stopped working. Do not purchase this product.

Device worked one time on a trip and on my way home from a trip to buy stop working and gave false readings