YB21 DC Voltmeter DC 0-10V 0-30V 0-100V 0-300V 0-600V Mini Voltage Meter 3-Wire 0.36'' Digital LED Volt Panel Meter Volt Tester Attention: The power supply voltage of the instrument should not exceed 30V, and enough safety voltage space should be reserved; Due to the limited space of the sticker, some infrequent ranges will be manually rewritten on the sticker, please do not order if you mind it. DC0- 100V, DC0-300V: When the measured value is le than 9.9V, only two digits will be displayed; when the measured value is greater than 9.9V, only three digits will be displayed. DC0-600V: When the measured value is le than 99V, only two digits are displayed; when the measured value is greater than 99V, only three digits are displayed. Attention:1, The power supply voltage of the meter should not exceed 30V, and enough safety voltage space should be reserved.2, Due to the limited space of the stickers,some infrequently used ranges will be manually rewritten on the stickers, please don't order if you mind it.3, DC0-100V,DC0-300V: When the measured value is le than 9.9V, only two digits will be displayed;When the measured value is greater than 9.9V, only three digits will be displayed.4, DC0-600V: When the measured value is le than 99V, only two digits will be displayed;When the measured value is greater than 99V, only three digits will be displayed Technical Parameters: Dimension:34.8*23*20.5 mm Mounting hole:32.8*21.7mm Power Supply: DC3.3-30V Power Consumption: