Features:Support USB cable charging and solar charging,ensuring that the tire preure monitoring system can work continuously.Our TPMS has five alarm modes, fast leak alarm, high / low preure alarm, high temperature alarm and sensor low preure alarm.Big LCD Screen Auto Backlight - Easy Reading Under Any Light Environment] Supports smart backlighting.Receiver angle adjustable,Support up and down 45 & left and right 45 adjustment.Split support, more convenient disaembly and aembly.Specifications:Receiver parametersPower supply mode:USB power supply,Solar Power supplyWorking voltage:DC 5VPreure unit:bar / psiTemperature unit: / Operating temperature:-20 -- 85Storage temperature:-40 -- 125Built in sensor parametersPreure range:0-5.6bar / 0-81psiLow preure alarm value: 1.8baHigh voltage alarm value: 3.2baPreure accuracy 0.1ba / 1.5psiWaterproof grade:IP67Battery built in CR2450 button battery (non removable battery)battery life: 2-3 yearsExternal sensor parametersPreure range:0-5.6bar / 0-81psiLow preure alarm value: 1.8baHigh voltage alarm value: 3.2baPreure accuracy 0.1ba / 1.5psiWaterproof grade:IP67Built in CR1632 button battery (removable and replaceable)battery life: 1.5-2 yearsPackage list:1xReceiver4xsensor4xanti-theft nut1xanti-skid pad1xUSB cable1xwrench