Specifications Power Source Corded ElectricStyle 1 Piece AC 100A Meter Split Core Transformer Color BlackMin Operating Voltage 80VWorking Voltage 80 260VACTest Voltage 80 260VACRated Power 100A 22000WOperating Frequency 45 65HzMeasurement Accuracy 1 0 gradePower Test Range 0 22000W Starting measure power 0 5W Energy Test Range 0 999kWhVoltage Test Range 80 260VCurrent Test Range 0 100A Starting measure current 0 02A Frequency Test Range 45 65HzPower Factor Test Range 0 1PF Features Digital Multimeter This power energy meter measures and displays voltage current active power energy frequency and power factor simultaneously with a split current transformer enhancing installation convenience Overload Alarm Function Provides an alarm with backlight and power flashes when exceeding the preset value Users can preset their power limit for safety Automatic Data Storage Automatically stores the last test data when power is lost preventing data loss during sudden power outages One Touch Control The button can control the backlight reset energy and preset power alarm limits providing simple and efficient operation LCD Display Large screen LCD with a 180° viewing angle and blue backlight that can be manually turned on off suitable for clear visibility in various lighting conditions Package Included 1 x AC 100A Meter Split Core Transformer 1 x User Manual