PortaTree Maximum Sensitivity for Banner SBL1 Sensors - Manual (Page 3)

When your sensor is set to maximum sensitivity make sure to screw back in the
white protective dust cover before use to ensure water and dirt does not get
inside the sensor.
NOTE:
All SBL1 sensors shipped from Portatree are already adjusted for
maximum sensitivity. You should never have to adjust sensor
sensitivity!!
½” to 1”
2” to 3”
Sensor aligned
Sensor not aligned
or not powered