Features: Two display digital voltmeter ammeter simultaneously monitors 0-100V voltages and 10A current with ±1% high precisions measurement, featuring bright red/blue LED screens for enhanced visibility. Engineered with two color LED displays that maintain 180° readability in strong light, this plastic caseds meter outperforms traditional LCD models with its 0.1V resolution and shock resistant design. for engineers, technicians, and enthusiasts requiring power monitoring in electronics prototyping, renewable energys systems, and industrial equipment maintenance. Perfectly integrates into laboratory workbenches, EV battery testing stations, solar charging controllers, and portable device charging setups for real time electrical parameter tracking. Compact construction with reinforced terminals blocks ensures long stability across temperature variations ( 10°C to 60°C), making it essential for professional circuit diagnostics. Specifications: Materials: Plastic Color: Black Size:as picture show voltages measurement ranges: 0-100V Power supply ranges: DC4-30V voltages error: ±0.1% Current error: ±1% External splitter specification: 75 milliohms Operating current: < 20mA Working temperature: -10℃~65℃ Package Includes: 1PC Voltmeter Ammeter note: Please allow 0-1cm error due to manual measurement. make sure you not mind before bid. Due to the differences between different monitors, the Pictures may not reflect the actual of the item.