Car Charger/Thermometer/Ammeter/Voltmeter Tester Dual 2 USB Adapter 3.1A 12-24V

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Features:
Dual USB 3.1A output
With temperature and current meter tester
Easy to satisfy your need with dual USB socket
Fixed support helps stabilize the USB car charger
Multifunction product with 10A protection tube perfect for travel use
Apply to all USB charging mobile phones or other electronic products
This easily installed 5V 2.1A output port holds your smart phone GPS MP3
Optimized for iPad iPhone and iPod-fast loading at full speed (2.1 amps for iPad 1 amp for iPhone / iPod.)

Specifications:
Type: 4 in 1 Car Charger
Case Color: Black
LCD Digital Color: Red Blue
Output Interface: USB
Input Voltage: DC 12-24V (±0.2V)
Output Voltage: DC 5V (±0.1A)
Output Current: 3.1A
Voltage Measuring Range: 5-25V
Current Measuring Range: 0.1A-3.1A
Compatible Brand: Universal
Compatible Model: Universal
Conversion Efficiency: 95%
Temperature Measurement Range(Celsius): -20℃ to +80℃ (±1℃)/Fahrenheit :-4F-176F(±1F)
Size: 42mm x 78mm x 20mm/1.65 x 3.07 x 0.79 (Approx.)