PZEM-004T 0-100A AC220 TTL Serial Communication Module Voltage Current Power Frequency Modbus-RTU

Feature FunctionMeasuring rangeStarting current powerResolutionMeasurement accuracyDisplay format10A100A10A100AVoltage80 260V 0 1V0 5 Current0 10A0 100A0 01A0 02A0 001A0 5 1000W displays 1 decimal place such as 999 9W 1000W only displays integers such as 1000WActive power0 2 3KW0 23KW0 4KW0 1W1 Power factor0 00 1 00 0 011 Frequency45HZ 65HZ 0 1HZ0 5 Active energy power clear software clear 0 9999 99KWH 1WH0 5 10kWh the display unit is Wh 1kWh 1000 Wh such as 9999Wh 10kWh display unit is kWh such as 9999 99kWhPower overrun alarmThe active power threshold can be set and the alarm state is set when the measured active power exceeds the set threshold Communication InterfaceTTL interfacePower supplyThe single phase power frequency grid power supply is supplied to the main circuit through the RC capacitor and the TTL output communication interface is isolated from the main circuit optocoupler and is a passive output An external 5V power supply is required for communication NoteThe TTL interface of this module is a passive interface It must be externally supplied with 5V power supply That is all four ports must be connected 5V RX TX GND during communication otherwise communication cannot be performed Operating temperature 20C 60CPackage includes 1 x TTL Serial Communication Module