When Germany sun battery voltage to the low limit, alarm notifies the user, and then automatically shut down to prevent the sun battery deep discharge in Germany.
当德国阳光蓄电池电压降到低限时，报警通知用户，然后自动关机以防止德国阳光蓄电池深度放电。
It has the function of low voltage alarm. This could remind the user to replace the battery before used up.
具有低压报警功能，电尚未耗尽之前及时提醒用户更换。
Overloading, set to remind the show due to low voltage alarm, the battery capacity of less than 10% of the police.
超载、欠载提醒显示、低电压报警、电池容量低于10%时报警。
Unique low-voltage battery alarm, more than 200 times durative after alarm.
独特的电池低压告警，告警后可开锁200次以上；
Unique low-voltage battery alarm, more than 200 times durative after alarm.
独特的电池低压告警，告警后可开锁200次以上；
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