Digital Multifunction Meter Module Power Frequency Comm AC Current Voltage Test Module TTL Serial Port Item Type: Multifunction Meter Module Material: PCB Voltage Measurement Range: 80-260V Resolution: 0.1V Measurement Accuracy: 0.5% Current Measurement Range: 0-100A Starting Current: 0.02A Resolution: 0.001A Measurement Accuracy: 0.5% Active Power Measurement Range: 0-23kW Starting Power: 0.4W Resolution: 0.1W Display Format: <1000W Display 1 decimal place, such as 999.9W; ≥1000W, display only integers, such as 1000W Power Measurement Range: 0.00-1.00 Resolution: 0.01 Measurement Accuracy: 1% Frequency Measurement Range: 45Hz-65Hz Resolution: 0.1Hz Measurement Accuracy: 0.5% Active Energy Metering Range: 0-9999.99kWh Resolution: 1Wh Measurement Accuracy: 0.5% Display Format: <10kWh, display unit is Wh (lkWh=1000Wh), such as 9999Wh; ≥ 10kWh, displayed in kWh, such as 9999.99kWh Electric Energy Reset: Software Reset Power Over Limit Alarm: The active power threshold can be set, and when the measured active power exceeds the set threshold, the alarm status will be set.