Features: Supports USB cable charging and solar charging, ensuring continuous operation of the tire pressure monitoring system. This TPMS includes five alarm modes: fast leak alarm, high/low pressure alarm, high temperature alarm, and sensor low battery alarm. Large LCD screen with auto backlight for easy reading in any lighting environment; supports smart backlighting. Adjustable receiver angle with 45 up and down and 45 left and right adjustment. Split design for easier disassembly and assembly. Specifications: Receiver parameters Power supply: USB power, Solar power Working voltage: DC 5V Pressure unit: bar / psi Temperature unit: C / F Operating temperature: -20C to 85C Storage temperature: -40C to 125C Built-in sensor parameters Pressure range: 0-5.6 bar / 0-81 psi Low pressure alarm threshold: 1.8 bar High pressure alarm threshold: 3.2 bar Pressure accuracy: 0.1 bar / 1.5 psi Waterproof rating: IP67 Battery: Built-in CR2450 coin cell battery (non-replaceable) Battery life: 2-3 years External sensor parameters Pressure range: 0-5.6 bar / 0-81 psi Low pressure alarm threshold: 1.8 bar High pressure alarm threshold: 3.2 bar Pressure accuracy: 0.1 bar / 1.5 psi Waterproof rating: IP67 Battery: CR1632 coin cell battery (replaceable) Battery life: 1.5-2 years Package list: 1 x Receiver 4 x Sensors 4 x Anti-theft nuts 1 x Non-slip pad 1 x USB cable 1 x Wrench