Feature:1. HIGH QUALITY MATERIAL: The ammeter is made of high quality ABS material, which is durable and can be used for a long time.2. HIGH ACCURACY: The current test panel adopts true RMS measurement, with high accuracy, good stability and practicality.3. EASY TO READ: The ammeter has a high brightness LED digital tube to display the measured value, which is convenient for reading.4. EASY TO USE: The variable ratio can be set on site through the buttons of the instrument, which is easy to operate and flexible to use.5. RS485 COMMUNICATION INTERFACE: With RS485 communication interface, it can be networked with various PLC, HMI and configuration software.Specification:Item Type: AmmeterMaterial: ABSSize: Approx. 99 x 99 x 45mm/3.9 x 3.9 x 1.8inHole Size: Approx. 92 x 92mm/3.6 x 3.6in, 76 x 76mm3.0 x 3.0in, 68 x 68mm/2.7 x 2.7inAuxiliary Voltage: AC220VFrequency: 30.00-99.99HzParameters: AC Sampling Technology is Used to Measure the Current (Voltage, Frequency) in Single Phase and 3 Phase Power Grids, and the Magnification Can Be Set Through the Panel Film. It Adopts Digital Display and Has the Advantages of High Accuracy, Stable Performance, and Anti Vibration. Directly Replace the Original Means of Formal InstrumentsAdopt RS485 Communication Interface, Asynchronous Half Duplex Mode, Optional Communication Speed 1200-9600, Factory Default 9600bps.Package List:1 x AmmeterNote:Please allow some errors due to manual measurement.