This TPMS with LCD display and 4 valve-cap sensors can help monitor tire pressure. It is easy to install and very convenient to use.   Features: Sensors.  Match with 4 valve-cap sensors.  Replaceable sensor battery (CR1632).  Sensor pressure range: 0~5.2Bar / 0~75PSI.  The weight of sensor is only 9.6g, no tire balance is needed after installation.  Pre-programmed sensors, no pairing is needed.  Display: Glossy glass display can be charged by solar energy or Micro USB charging slot.  Large display battery capacity for a month use.  Monitoring Data: Four tires pressure data at a glance.  Adjustable threshold value of tire pressure & temperature.  Low power consumption in sensor. Real-time tire temperature checking.  Visual and audible warning.  Intelligent sleeping mode for power saving.  High / Low pressure warning.  High tire temperature warning over (80℃/ 176℉）.  Low sensor/ display battery warning.  Fast / slow leakage warning.  Sensor failure warning.   Specifications: Pressure unit: Bar / PSI;  Package size: 21 * 14 * 7cm / 8.3 * 5.5 * 2.8in;  Package weight: 340g / 12oz;  Valve-cap Sensor: Pressure range: 0-5.2Bar / 0-75PSI;  Operating frequency: 433.92MHz ± 0.05MHz;  Operating voltage: 2.0V ~ 3.3V;  Operating current: ≤16mA;  Static current: ≤1uA;  Operating temp.: -20℃～+60℃;  Battery Model: CR1632;  Battery Life: ≥2years;  Display: Operating frequency: 433.92MHz ± 0.05MHz;  Operating current: ≤2mA;  Static current ≤100μ A;  Operating voltage: 2.6 ~ 3.6V;  Operating temperature: -20℃ ~ +70℃ / -4℉ ~ +158℉;  Built-in battery capacity: 3.2V / 160mAh;  Charging temperature: -10℃～65℃ / 14℉ ~ 149℉;  Solar charging current: ≥15mA (at 5500LX 25℃/77℉ );  USB charging current: ≤60mA;  Alarm Value: Adjustable high pressure value: 2.9~5.0Bar / 42~73PSI;  Adjustable low pressure value: 1.7~3.4Bar / 25~49PSI;  Adjustable high temperature value: 50~90℃ / 122~194℉;  Default value: High pressure value: 3.3Bar / 48PSI;  Low pressure value: 1.8Bar / 26PSI;  High temperature value: 80℃ / 176℉;   Package List: 1 * Display;  4 * Sensors;  1 * Set of Accessory;  1 * User Manual