Feature:  No signal alarming: When cannot receive signal in a certain period of time, it will start up no signal alarming.  High pressure alarming: When pressure is over the limited tire pressure, it will start up high pressure alarming.  Low battery power alarming: When battery is lower than the setting data, it will start up low battery power alarming.  Low pressure alarming: When pressure is lower than the limited tire pressure, it will start up low pressure alarming.  High temperature alarming: When tire temperature is over the limited temperature, it will start up high temperature alarming.  Quick leak alarming: When pressure leaks over 5kpa within 5 seconds, it will start up quick leak alarming and appear a "leak" icon.  Slow leak alarming: When tire pressure is lower than the limited pressure, it will start up slow leak alarming and appear a "low pressure" icon.     Specification:  Name: Tire Pressure Sensor.  Material Type: Plastic and Material.  Special Features: Bluetooth.  Item Type: Pressure & Vacuum Testers.  Hardware Version: Latest version.  Software Version: Latest version.  External Testing Certification: CE.  Electronic: Yes.  Display way: Solar LCD.  Color: Black.  MAX Tire Pressure Monitor range: 100-1300kPa.  Support System: Android, IOS.  Working Current: 100mA.  Processor: ARM M0.  Tire Pressure Detection Range: 100-1300kPa.     Package Included:  1xExternal Bluetooth Tire Pressure Monitor with Solar Display