Peacefair PZEM-037 Battery Coulomb Meter, Pure Copper with 100A shunt, 0.5m USB & OT8 cable N-type to SMA It has a 38mm x

It has a 38mm x 36mm space to mount a camera or sensor or whatever you like

increasing the USB current limit to ensure stable operation under heavy system and peripheral loads

please pay attention to the use of the input and output voltage and load current

anywhere using a smartphone or computer

A button (can as reset key)

Peacefair PZEM-037 Battery Coulomb Meter, Pure Copper with 100A shunt, 0.5m USB & OT8 cable N-type to SMA It has a 38mm x1. STN large screen full view display: with STN large screen display technology, users can easily view voltage, current, capacity and other information, whether indoors or outdoors. 2. Display voltage current capacity percentage: the multi function display can show voltage, current, battery capacity and percentage at the same time. 3. Bi directional Current Detection: Supports bi directional current detection, not only can it measure the discharge