Digital Voltmeter LED Display (4.5-30V DC)

Features:

• Measuring range: DC 0V–30V.
• Input range: DC 5V-30V(Max Input: DC 30V. The device can be damaged if input is over 30V).
• Working Current:  Blue< 13mA.RED< 23mA.
• Display: Three 0.56 digital tube.
• Measurement accuracy: ±1%.
• Refresh rate: about 300mS / times.
• Input impedance: > 100K.
• Size:2.8cm x 4.7cm x 2.1cm.