Upgraded Mini Digital Voltmeter Ammeter LED Display Volt Amp Voltage Meter Ammeter Indicator Tester AC50-500V 40JEOOTDTYComits: Power Supply: Two-wire Power Supply. Measuring range: AC50-500V voltage, AC1-140A current. AC voltage and current are displayed at the same time, without extra. Power sources. With 140A precision small transformer, it can measure the real rms value and high density measurement. Made of high quality plastic materials with exquisite workmanship, durable and long service time. Specification: Material: Plastic Size: About 7.4x2.8x 4cm/2.9x1.1x1.6in Voltage: AC50-500V Rod: AC1-140A Package Includes: 1x Digital Voltmeter Ammeter Note: Please allow 1-3cm error due to manual measurement. Pls make sure you don't mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item.