Available from Minder Research, Inc., the TireMinder Wireless TMG400C and TMG500HD TPMS systems for RVs, motorhomes and motor coaches. These TPMS systems are designed to continuously monitor tire pressure and temperature, and offer both visual and audible warnings if a tire’s pressure drops or if tire temperature exceeds 167F (blow-out warning.) Drivers can easily monitor up to 22 wheels simultaneously. The Minder Research TMG400C has a pressure range of 0 to 145 psi, includes four screw-on pressure/temperature transmitters with replaceable lithium batteries (eight are included with the kit.) The TMG500HD has a pressure range of 0 psi to 233 psi, and includes six permanently sealed screw-on transmitters with a five year minimum life expectancy. Both include an easy to read monitor, heavy duty, multi-angle bracket, transmitters and 12/24 volt car charger.