The load (neutral negative) needs to pass through the Current transformer to display the current value. If it does not pass through the Current transformer, the current value will not be displayed.
 The load (live positive) is directly connected without passing through the Current transformer
If the load is lower than the current below 00.7A, it will not be displayed, only 00.0 will be displayed

Specification:
 100% brand new and high quality
 
 Installation size: 22mm/0.87"
 
 Material: Electrical components
 
 Color: Red/White/Blue/Green/Orange
 
 Shape:Square
 
 Voltage range: AC 60-500V
 
 Current range: 0-100 (A)