The sensors are made of aluminum alloy. They include anti-theft features, are lightweight, compact, waterproof, explosion-proof and suitable for various climates and weather conditions. Installation is quick and easy. The Haloview BT7 TPMS accurately detects tire pressures from 0 to 218 PSI, offering versatility for various vehicles such as cars, SUVs, pickups, vans, buses, RVs, and travel trailers. It boasts a strong transmission range, ensuring consistent and reliable communication between sensors and the display unit. Note: We strongly recommend using this system with a repeater for longer trailers.