DC Voltmeter 0-30V 7-Segment Display

Specification

• Measuring range: DC4.0-30.0V
• Power supply range: No additional power supply, direct use of the measured voltage as a power supply, the range as above
• The highest input DC is 30.0V. Note: The input voltage higher than 30V may be permanently damaged! Allowable error  1%; greater than or equal to V, the error is  0.3V; less than V error  0.
• Input impedance : > 0K ohms
• Operating current < 23mA
• Refresh speed: about 300mS time
• Display mode: three “0.6” LED digital tube
• Display colour: red
• Lead length: about cm / 7.7 in
• Dimensions: about 4 x 2 x mm / 1. x 1.14 x 0.7 in
• Opening size: about 46 x mm / 1.1 x 1.07 in
• Net weight: about g
• Operating temperature: –  ~ 6