Features: LED display instrument has a wide measuring range of AC 60-500V and 0-100A. Panel size: 31x31mm/1.22x1.22inch//Mounting aperture:22mm. Volt monitor uses an LED digital display tube for clear display, and you can see the real-time voltage through the display. Voltage current detector has beautiful appearance, high measurement accuracy and stable working performance. Voltage tester is made of high quality materials, exquisite workmanship and long service life. Specifications: Material: Plastic Panel size: 31x31mm/1.22x1.22in Note: Please allow 1-3cm error due to manual measurement. pls 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: 1x LED Display Voltmeter