新款带LED电压电流显示双USB车充数显车载充电器3.1A多功能车充

产品特点：

双口3.1A USB输出,自带PTTC过流保护功能,当输入或者输出电流大于设定安全电流时，系统自动切断供电，拔下机器自动恢复使用,插入点烟器后会自动显示车内当前的温度,输出电流和和输入电压,每隔20秒轮换.

输入电压：DC 12V-24V

输出电压：DC 5V

输出电流：3100mA

转换效率：百分之九十五

电压测量范围：5V---25V正负0.2V误差

电流测量范围：0--3.1A 正负0.1A误差

温度测量范围：-20度到+80度正负1度误差

4 in 1 car charger.
Features:
New design with double 3.1A USB output,PTTC over-current protection,display the voltage,temperature and current alternately by each 20 seconds.Auto power off while the input current or output current is greater than the safety current,please plug out will working again.
Input voltage:DC 12 V-24V
Output voltage: DC 5V
Output current: 3.1A
Conversion efficiency:95%
Voltage measuring range: 5 V - 25 V
Current measuring range: 0-3.1 A
Temperature measurement range: - 20 degrees to + 80 degrees