Features: Accurately measure AC-voltage and current with the encorech-72va combination meter. Made- of durable plastic, this meter is designed for embedded installation and features a bright red digital- display. Perfect for electricians, DIY homeowners, and anyone in need of accurate AC-voltage and current readings. Whether you're troubleshooting electrical issues- at home- or on the job- site, the encorech-72va is the ideal- tool for the job. Remember to only use this meter with pure-AC power sources between 50-63hz, and avoid using it with inverter- outputs or corrected sine- wave- circuits. Specifications: Material: Plastic Measurement Accuracy: 1%2Digits Hole size: 68x68mm(Embedded Installation) Digital Color: Red Measuring Range: Voltage AC50-500V, Current AC1-120A Size: Approx. 7.2x7.2x3.2cm/2.83x2.83x1.26in Package Includes: 1x Voltmeter note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. This instrument is only suitable for pure-AC 50-63HZ mains power-supply, can not be used for square wave-, inverter- output and repair sine- wave- sine- wave- circuit measurement, otherwise the instrument will be permanently damaged!