A low-cost drinkometer circuit suitable for insects and other organisms

A low-cost drinkometer circuit suitable for use with insects is described. The circuit is composed of readily available components powered by a battery pack. Schematic diagrams of the circuit and simulations are provided. The operational theory behind the development of the circuit is discussed. The usefulness of the circuit is illustrated by a simple consumption experiment in which the amount of sucrose consumed by honey bees is determined.