0.28 inch 3 wire Digital Voltage Meter DC0-100V Red

• This voltmeter can be used to determine the voltage and condition of the storage battery in vehicles and motorbikes.
• Other voltages can also be measured using it.
• The maximum operational voltage of the voltmeter is 30V; thus, when operating, please allow sufficient margin to prevent irreversible damage to the voltmeter from an electrical spark, ripples in the power supply, or other very high abrupt voltage changes.
• The yellow/white wire should be connected to the positive pole of that source or to another source that we intended to measure the voltage across.
• The red wire should be connected to the positive pole, the black wire to the negative pole.