Square LED Digital Voltmeter Ammeter 22mm Signal Lights Ampere Current Meter Tester Measuring 60-500V 0-100A OOTDTY Features: It is digital tester signal high brightness LED display and cylindrical main body. The meter can only use to measure electricity. It can be used as signal indication, warning signal, accident signal and other signals in the line of electric power, telecommunication, machine tool, ship, textile,printing and mining machinery. Specification: Item: Voltmeter & Ammeter Current: 0-100A Material: Electrical components Panel size: 31x31mm/1.22x1.22inch Mounting aperture:22mm Display color: Red, Blue, Green, Yellow, White Quantity: 1 Set Note: 1.Please allow 0-2mm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 * & Current 1 * Current