The NimbleSense^TM architecture provides several unique modules that can be integrated into the ND Series to simplify the product design and speed time to market. Three of the most prominent are advanced digital filtering, closed loop control and a 50/60 Hz notch filter. The integrated advanced digital filtering eliminates noise from fans and blowers before it reaches the sensing sub-system and reduces system noise by at least a factor of ten. The optional integrated closed loop control reduces loop delays to improve accuracy and responsiveness while minimizing system power and heat. Finally, the integrated 50/60 Hz notch filter eliminates nose from the power grid and AC devices before they reach the sensing element.