Steelmate ET-640AE DIY TPMS Car Tire Pressure Monitoring System with LCD Display 4 Valve-cap Sensors Bar PSI Unit

description":"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: General: Brand: Steelmate Model: ET-640AE 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