[DETAIL] Features: Ultra-thin mirror round hole Easy to install reverse polarity protection Reverse connection does not burn Specifications: Measuring range: 4V-100V Power supply range: 4V-100V Minimum startup: 3.8V Allowable error: ±1% Input impedance: >100K ohms Operating current: red <15mA, green <12mA, blue <12mA Refresh rate: about 300mS/time Display mode: three-digit circular LED digital tube Display color: red, green, blue optional Lead length: 20cm Dimensions: Diameter 33.8 Hole size: diameter 30.0 Working temperature: -10℃～65℃ Note: Input voltages higher than 100V may be permanently damaged Package Included: Digital DC Voltmeter X1 [ATTRIBUTES] - Hign-concerned Chemical: None - Supply Voltage: 6-24V DC - Application: Computer - Hign-concerned Chemical: None - Supply Voltage: 6-24V DC - Application: Computer - Type: Module - Operating Temperature: -10℃~65℃ - Origin: Mainland China - Condition: New