I've purchased a current sensor module from ebay:
I've connected this straight to an analog pin on the Arduino and it all seems to work fine. What I'm not sure about is if the current flowing through the sensor briefly exceeds its limits (which could happen in my scenario), will it generate an a voltage greater than the +5V the arduino can handle on its analog pins?
I've seen this article on protecting the analog input pin:
Would I need to implement this sort of protection in my circuit?