bayite DC 5-120V 400A Mini Digital Current Voltage Amp Meter Gauge with Hall Effect Sensor Transformer
 
Product Features
  

         
Through-hole design: Easy Wiring; Measure positive or negative current; No current direction limitation
         
Electrically isolated from high voltage power source which eliminates risk to delicate monitoring equipment and also minimizes safety concerns
         
Display Voltage or (+ -)Current; Voltage Range: 5V-120V; Current range: 0-400A
         
Compatible with large wire; Diameter of the hole through sensor is 3/4 inch(19 mm)
         
Loop through sensor multiple times to strengthen signal. For example, if your current signal is only 0.2 Amps, you could loop the wire through the sensor 10 times and the signal would by 10X stronger and would appear as 2.0 Amps