A pest control device, comprising:a bait member operable to be consumed or displaced by one or more pestsa circuit including one or more sensing elements associated with the bait member, acharacteristic of the one or more sensing elements being altered with pest consumption or displacement of the bait member, the circuit being operable to monitor the characteristic to detect a number of different nonzero degrees of the pest consumption or displacement andwherein the circuit applies an electric potential to the one or more sensing elements.