3 IN 1 Display LED Digital Thermometer Voltmeter USB Charger

Description: 1.Car-Mounted Charger USB Port,you can use it to charge mobile phone. Suitable for 12V and 24V battery 2.Car Battery Voltage Monitoring Simply plug into cigarette socket, Instant confirmation of battery voltage, Low power consumption high light display. 3.Digital Thermometer Specification: Case Color:Black Light Color: Red,White,Blue Output Voltage: 5.0V Maximum Output Current: 2.1A Measuring Range:-10-80 Total Length: 7.6cm/3"(approx) Diameter: 4cm/1.6"(approx) Package Included: 1 X LED Digital USB Charger Thermometer Voltmeter