Function: 1. Utilizing smart measurement chips and large-scale integrated circuits, the power voltage meter offers stable performance and is practical and reliable. 2. Small in size, lightweight, robust, and durable, it's easy to carry and can be placed in your bag without taking up much space. 3. The large LCD screen can measure and display AC voltage and current simultaneously, making it user-friendly. 4. Equipped with an accurate transformer, measurements are precise and fast, with sensitive response and convenient wiring. 5. AC dual display ammeter and voltmeter with a measurement range of AC 80V-400V and AC 100A, featuring minimal measurement error. Specification: Item Type: Power Voltage Meter Model: QH4835A Material: ABS Purpose: Electrical numerical measurement Measurement Range: AC80-400V AC100A Display: LCD Dual Display Working Temperature: -10~+50 (°C). Package list: 1 x Voltage Current Meter 1 x Power Cable 1 x Transformer Note: This module is suitable for indoor use only and not for outdoor use. The load must not exceed the rated voltage and current. Do not make mistakes in the wiring sequence.