When the measurement value falls below the value set here, the relay activates.
Note: when you set a higher value for Activate above and a lower value for Activate below, the relay is passive when the measured value is in between the setpoints.
If you set a lower value for Activate above than for Activate below, the relay is active when the measured value is in between the setpoints.
You can also set only one setpoint.
Also note that the Hysteresis setting has an effect on the relay deactivation.
For more information on relay setpoint configuration, see Indigo200 user documentation.