Jiahui DIY 0.28" 3-Digit LED Digital Voltmeter Module - Black + Green + White (4~30V)
Suitable for 3V / 5V / 9V / 12V / 24V; Convenient to connect to car storage battery car and motorcycle; With anti-wired protection; Max. input voltage should less than 30V; Working voltage: DC 4~30V; Checking voltage: 0~30V; Working current: <20mA; Installing hole: 23 x 10mm; Measuring rate: >=200mS/time; Accurancy: 3%; Working temperature: -10~65'C; Working humidity: 10~80%; Working pressure: 80~106kPa.