6PCS 2 Wire Red DC 4.5-30V 0.56" LED Panel Digital Display Voltage Meter Mini DC Digital Voltmeter
 
Product Features
  

         
Easy to wire:Red wire is connected to positive pole, black wire is connected to negative pole,easy to connect; it can test directly and no need of power supply, easy to install and use.
         
Voltage detection:Measuring range: DC4.5-30V(two wires Access);Operating temperature: -20c to 65c;Upper limit input: DC132V. Note: Input voltage higher than 132V may be permanently damaged!
         
Safe to use: With reversed connection protection, The precision automatic adjustment ,when less than 10V accurate to 0.01V, more than 10V accurate to 0.1V.
         
Application: Can be widely applied to monitoring voltage of storage battery, mastering voltage state of storage battery, and measuring voltage and current of other devices.
         
Package: 6PCS 2 Wire Red DC 4.5-30V 0.56" LED Panel Digital Display Voltage Meter Mini DC Digital Voltmeter