diff --git a/monitor/example/monitor.yaml b/monitor/example/monitor.yaml
index 67feaab..1692800 100644
--- a/monitor/example/monitor.yaml
+++ b/monitor/example/monitor.yaml
@@ -19,6 +19,12 @@
 #    - name [The name of the fan sensor]
 #      has_target [true|false  If this sensor has a Target property for
 #                  setting a fan speed (otherwise just for reads)]
+#      factor [The factor to multiply with target to calculate the expected
+#              fan speed. Default is 1 for fan speed target;
+#              Customized value for pwm target]
+#      offset [The offset to add to calculate the expected fan speed.
+#              Default is 0 for fan speed target;
+#              Customized value for pwm target]
 #
 #sensor_trust_groups:
 # - class: [Group class name