Which component of a homeostatic system compares sensory information to a target value?

Integrator compares sensory information to a target value.

Explanation:

Integrator is responsible for sending 'instructions to an effector' based on 'sensory information' which eventually give responses. These effectors execute the necessary changes required to adjust with the environment. Integrator act as the control centers. Integrators send signals to the effectors after comparing the variables or changes at a definite set point. However, its function mechanism is 'dependent on the feedback loop'.