1. Made of quality ABS material, durable to use.
2. Measuring Range AC from 110 to 300V.
3. Measuring accuracy: +/-1.5%, +/-2 word.
4. Consume power: Equal or less than 1W (about every 1200 hours consume 1 kilowatt-hour).
5. The module designed for measuring the ac voltage by connecting to the switch plug directly or the other kind of switch plug.
6. It is suitable for measuring the AC voltage in many place, such as office, factory, laboratory, household and so on.
7. The product can show the voltage of power by connecting to the plug of AC 110V/220V.
8. It is important for you to let the children away from the product.
9. Do not use the product in a damp environment.