Hikvision NP-SG101 Monitoring area display: The monitoring area is divided into 1 part,

Monitoring area display: The monitoring area is divided into 1 part, Detects metal as small as 3 coins at minimum in the middle of the door. Sensitivity adjustable: Each detection zone has 1000 sensitivity levels (0~999), the zone can be adjusted to the appropriate sensitivity according to the detection requirements (The higher the sensitivity value, the higher the sensitivity). Panel display: Uses high brightness digital tube