For example:   

The output voltage at +2 amps would be (2.5V + (0.066 * 2)) = 2.632 V    
The output voltage at -5 amps would be (2.5V - (0.066 * 5)) = 2.170 V   

 

Feature :  

• The current sensor chips: acs712elc-20a;   
   
• Pin 5 V power supply on board power indicator;   
   
• The module can measure the positive and negative 20 amps, corresponding to the analog output of 100mv / a;   
   
• No test current through the output voltage is VCC / 2;   
   
• PCB board size: 31 (mm) x13 (mm);   
   
• Color: as the photos show.   
   
• Note: ACS712 is based on the principle of the Hall test, please use this field to avoid impact   
   
• Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!   
   

Packing:  

• Current sensor module x 1pcs  

SPECIFICATIONS: