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• New design with double 3.1A USB output
• PTTC over-current protection
• display the voltage
• temperature and current alternately by each 10 seconds
• Auto power off while the input current or output current is greater than the safety current
• please plug out will working again

• 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.)
• Type: 4 in 1 Car Charger
• Color: Black
• LCD Digital Color: Blue
• Output Interface: USB
• Input Voltage: DC 12-24V (Error of plus or minus 0.2V)
• Output Voltage: DC 5V (Error of plus or minus 0.1A)
• Outout 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: -20 degrees to +80 degrees (Error of plus or minus 1 degree)
• Size: 42mm x 78mm x 20mm/1.65" x 3.07" x 0.79" (Approx.)

• 1 x 4 In 1 Dual USB Car Charger Adapter