The iSN-301 is a Time-of-Flight sensing module designed specifically for non-contact distance measurement. It can measure distance up to 4 meters. The module can be configured to trigger an LED alarm and activate an output relay when a distance change is detected. Additionally, the size and position of the region of interest (ROI) can be programed and adjusted to modify the sensor’s field of view (FOV). The module can be easily integrated with a host controller connected on the same RS-485 network via DCON or Modbus RTU protocol.