Features: 1.FULL VIEW COLOR LCD SCREEN: Volt amp meter adopts full view color LCD screen, large color screen with 360 no dead angle, providing clear and easy to read measurement results. 2.SIX FUNCTION DISPLAY: LCD digital voltmeter ammeter support six functions color screen display, voltage, current, power, timing, temperature, electric quantity. 3.SECURE MOUNTING: AC digital voltmeter ammeter is made of all around buckle design, stable installation, no breakage of the card. 4.ACCURATE MEASUREMENT: LCD display voltage amperage detector can accurately measure current from 0 to 100A and voltage from 50 to 300V. 5.TEST POWER CONSUMPTION: Digital voltmeter ammeter accurately tests the power consumption of household appliances to help identify energy saving opportunities. specification:Item Type: Digital Ammeter Voltmeter Material: Plastic, Electronics Color: Black Current: 0-100A Voltage: 50-300V PackageList: 1 x Digital Ammeter Voltmeter 1 x Connecting Wire 1 x Open Close Transformer 1 x Instruction Manual