0,56-дюймовый DC DC4.5-30V двухпроводной цифровой вольтметр с обратной защитой от обратной защиты

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1、本电压表接线简单，只需要接两根线，红线接正，黑线接负，表内有接反保护，接反不烧。This voltmeter's wiring is simple，it only need to connect two wires，the red wire is to connected to positive pole，the black wire is to connected to negative pole. There is protection when the wires aren't correctly connected，the electric circuit won't be bumed.

2、本电压表无需外接工作电源，可以用测量电压直接工作，工作电压范围宽达4.5-30V。This voltmeter doesn't need external drive working power，it can work with measuring voltage，the working voltage's range is 4.5-30V.

3、为达到较好测量精度，本电压表会根据测量电压的不同自动移动小数点的位置。在测量10V以下电压时，小数点后显示两位；在测量10V以上电压时，小数点后显示一位。To reach the best measurement accuracy，this voltmeter will automatically move the decimal point's position according to the different measuring voltage. When it measures the voltage below 10V，it will display two places after decimal point. When it measures the voltage above 10V，it will display one place after decimal point.

4、本电压表可用于摩托车、汽车等监测电瓶电压，及时掌握电瓶状态。也可用于其它电压测量用途。This voltmeter can be used to measure the storage battery's voltage in motorcycles and cars and also can grasp the storage battery's status. It also can be used to measure other voltage.

1、30V是表电压表的最高极限使用电压，使用时请注意给表留足够的余量，避免因电机火花、电源纹波或其它过高突变电压对电压表造成永久损坏。30V is the voltmeter's maximum operating limited voltage，please leave enough margin when working，to avoid voltmeter's permanent damage because of electrical spark ，power supply ripple，or other too high abrupt change of voltage.

2、本电压表未做防潮、防水、防震、防油污处理，使用时请注意，或自行处理。This voltmeter didn't do moisture-proof，waterproof，shockproof，anti-oil processing，please be careful or handle by yourself when using.

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