220V Blue Backlit Digital LCD Voltmeter, EU Plug Voltage Tester Panel, DM55-1 AC 80-300V Widely used for homes, the construction industry, machinery, and electronic equipment, etc. Effectively protects your household appliances and extends their lifespan (can also be used as a simple voltage testing table). Suitable for measuring AC voltage in many places, such as offices, factories, laboratories, households, and so on. The biggest advantage is that you can see if the current voltage is too low or too high. Blue backlit screen, easy to read in dark environments. Monitors electrical safety usage voltage. Number of parts supplied: 1 Material: ABS Measuring range: AC 80-300V The voltmeter is only suitable for AC 50-60HZ Note: Data is manual measurement, please allow 1-30cm error, due to differences between light and screen, there will be a certain color difference, the specific received in kind shall prevail.