Product Options AC301-20A Open Sensor AC301L-20A with 485 Communication AC301L-100A Closed Sensor AC301L-100A with 485 Communication Key Features Digital AC Multimeter: An 8-in-1 energy meter that measures and displays voltage, current, power, electrical energy, timing, temperature, frequency, and power factor. It includes a split current transformer for flexible installation. Easy to Read: The LCD HD color display with backlight ensures the data is easy to read, providing an excellent visual experience. Overload Alarm Function: The voltmeter provides sound alerts and flashes the numerical unit when the preset value is exceeded. You can set numerical limits as needed. Electric Energy and Timing Clearing Method: Press the △ button for 3 seconds to flash the timing, click the M button to clear it. Double-click the M button to switch to electric energy, and click the M button to clear it. Warranty: Enjoy peace of mind with our customer support. If you have any questions, please contact us for satisfactory service. Specifications AC301-20A / AC301L-20A Voltage: AC 50-300V Shunt way: Built-in 485 Communication: AC301-20A: Without 485 Communication AC301L-20A: With 485 Communication Current: 0-20A Power: 0-4400W Capacity: 0.01-99999 KWh Timing: 0-999 Temperature: -10°C to 150°C Frequency: 50-60 Hz Power Factor: 0.01-1PF Package Includes - 20A 1 x Meter (20A is without shunt/CT Coil) 1 x User Manual 1 x Temperature Sensor AC301-100A / AC301L-100A Voltage: AC 50-300V Current: 0-100A Shunt way: Built-in 485 Communication: AC301-100A: No 485 Communication AC301L-100A: With 485 Communication Power: 0-22KW Capacity: 0.01-99999 KWh Timing: 0-999 Temperature: -20°C to 150°C Frequency: 50-60 Hz Power Factor: 0.01-1PF Package Includes - 100A 1 x Meter 100A 1 x Closed CT / Split CT 1 x User Manual 1 x Temperature Sensor