Dear customer: Thank you for choosing my store for shopping. The following are the matters needing attention for shopping: A. Economic transportation: detailed tracking information will not be included. Most of the packages will cause delayed delivery within the expected delivery time, so you need to be patient B. Each product link: There will be different option variants. If you do nt know how to select the product you want, please contact me, I will be honored to solve this problem for you. C. When you receive the package, there is product damage / product problem / error product and shipping problem, please contact me in time, I will solve it for you! D. If you are a wholesaler / distributor, a large number of orders and quantities, to provide you with factory prices, and hope to be honored to reach a partner with you! GOOGZON store: I wish you a happy life! 1. Wide measuring range: The measuring voltage range of this plug-in voltage monitor is AC 80-300V (110V, 220V), with low power consumption. 2. Flat plug: Designed as a flat plug, plug-in design, the voltage tester can detect and measure the current voltage immediately by connecting to the switch plug or wall socket. 3. Function: It helps to check the power health of the device to prevent low voltage from damaging your home appliances. 4. LCD display: LCD digital display, blue backlight, you can view data clearly and conveniently even in a dark room. 5. Scope of application: It is widely used in the measurement of AC voltage in homes, offices, industries, etc. 6. Good quality: made of high-quality ABS material, impact resistant, environmentally friendly and flame retardant. 7. Easy to carry: small size, light weight, easy to transport and store. Specification: Plug type: EU/U.S. Material: ABS white color Product size: 55.5*40.5*25mm Measuring range: 80-300V Input voltage: 110-220 V Output voltage: 110-200 V Measurement error: 0.01 Reminders: 1. Please keep children away from the product. 2. Do not use this product in a humid environment. Notes: 1. Due to manual measurement, please allow a difference of 1-3mm, thank you! 2. Due to the difference of different monitors, the picture may not reflect the actual color of the product, please understand.