Power Supply: Induced Current Power Supply Report the RMS Current and Accumulated Current Data by Minutes High Measuring Accuracy with a Sampling Frequency of up to 3.3 kHz Self-powered, Free from Batteries or External Wires Utilize a Sampling Rate of up to 1s for Real-time Monitoring and Quick Alarm Response Support External Wire Temperature Sensor for Cable Temperature Measurement Equipped with LED Indicator to Indicate Working Status and Alarms Enable Simultaneous Detection of Three Phases Compliant with Standard LoRaWAN® Gateways and Network Servers IP30 Rated Working Frequency: 50~60 Hz Maximum Input current: CT303: 8A ~ 300A Operating Temperature: Host: -20? ~ +70? Probe: -40 ~ 55? Storage Temperature: Host: -25? ~ +80? Probe: -40 ~ 55? Accuracy: ± 1 % Resolution: 1 mA