description":"Dual units adjustable tire pressure monitor system displays real-time pressure and it have alarm when tire problem occurs. Features: LCD display, powered by cigarette lighter plug. Real time monitoring, individual tire data showed. Wireless transmission, no wires connection is needed. Visual and audible alarm. Tire leakage, high/low pressure and high temperature alarm. General: Brand: Steelmate Model: ET-710AE Pressure unit: Bar / PSI (optional) Package size: 15 * 12 * 6cm / 6 * 4.7 * 2.4in  Package weight: 240g / 8.5oz  Specifications: Sensor: Operating frequency: 433.92MHz ± 0.05MHz Operating voltage: 2.1-3.3V Operating temp.: -20 - +60â Pressure range: 0-5.2Bar / 0-75PSI Display: Operating frequency: 433.92±0.015MHz Operating voltage: 12V±3V Operating temperature: -20-70â Default warning value: High pressure value: 2.9Bar / 41PSI (unit is optional) Low pressure value: 1.7Bar / 25PSI (unit is optional) High temperature value: 80â / 176â Package List: 1 * Display 4 * Sensors 1 * Set of Accessores 1 * Spanner 1 * Manual