_x000D_ 3X 100A PZEM 004T Version Wattmeter+Open CT Kwh Meter Volt Amp Current Test Module For Arduino TTL COM2/COM3/COM4 _x000D_ _x000D_ _x000D_ _x000D_ Overview: This document describes the specification of the PZEM-004T AC communication module, _x000D_ the module is mainly used for measuring AC voltage, current, active power, frequency, power _x000D_ factor and active energy, the module is without display function, the data is read through the TTL interface. _x000D_ _x000D_ PZEM-004T-100A: Measuring Range 100A (external transformer) _x000D_ Model: PZEM-004T _x000D_ Different batches may result in different product appearances, printed text, and colors, which do not affect usage _x000D_ Material: PCB _x000D_ colour: green _x000D_ _x000D_ Package Contents: _x000D_ 3 x Module _x000D_ 3 x Open CT _x000D_ _x000D_ Only the above package content, other products are not included. _x000D_ Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_