Features: Simple & easy- for assemble by yourself. 2.4-inch large LCD- color display, easy to read. 5 standard for your option: 50A/100A/200A/300A/500A. Made- of quality material, durable, sturdy- & long service life. Wireless transmission, which can avoid the complex wiring between the display and detection modules to bring interference. Specifications: Material: plastic+metal Display panel: approx 86x17x53mm/3.4x0.7x2.1-inch Measuring panel: approx 56x36x34mm/2.2x1.4x1.3-inch Current: 50A/100A/200A/300A/500A(optional) Note: Please allow 1-3cm error due to manual measurement. please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1 Set Voltage Meter