(100V) Mini DC Digital Voltage Meter

This is a small volt and current meter that you can connect to your power source and device/load to keep an eye about the status of your device. 

• Display mode: Three 0.28 LED digital tube
• update rate: About 500 ms/time
• Physical size: 30 x 12 x 8.5 mm (L*W* H, including installation ear)
• Power supply: Don't need the power supply, direct use of the test voltage as a power supply
• Lead wire length: 10 cm
• The minimum input: 3.50V
• The maximum input: 30V
• Measurement range: DC3.50 - 30V
• Operation temperature: -10 degrees~65 degrees
• Measurement accuracy: plusmn (1% + 2 Digit)
• Mounting holes distance: 26mm
• Red line:Power Supply +,Measure Voltage +,(3.50-30V DC)
• Black line:Power Supply -, Measure Voltage-