Multi-revolution sensitivity adjustor is equipped on all Panasonic compact micro-size inductive proximity sensor models, which facilitates to make the fine adjustment of the sensing distance. Highly resistive construction against ambient conditions conforming to lP 67. No oil, water and dust influence the excellent sensing performance. The maximum operation distance stands for the maximum distance for which the sensor can detect the standard sensing object. The stable sensing range stands for the sensing range for which the sensor can stably detect the standard sensing object even if there is an ambient temperature drift and/or supply voltage fluctuation.