diff --git a/lib/sensor_pzem.c b/lib/sensor_pzem.c
index ba630d6..f714dce 100644
--- a/lib/sensor_pzem.c
+++ b/lib/sensor_pzem.c
@@ -133,9 +133,11 @@ struct sensor_pzem_measurement_t sensor_pzem_measurement_decode(void)
 		case SENSOR_PZEM_ENERGY:
 			measurement.value.energy = ((uint32_t)rx_buffer[1]<<16)+((uint16_t)rx_buffer[2]<<8)+rx_buffer[3];
 			break;
+/* not used in this application
 		case SENSOR_PZEM_ADDRESS:
 		case SENSOR_PZEM_ALARM:
 			break; // no value is returned
+*/
 		default:
 			measurement.valid = false; // unexpected type
 	}
diff --git a/lib/sensor_pzem.h b/lib/sensor_pzem.h
index 952eef9..98264e0 100644
--- a/lib/sensor_pzem.h
+++ b/lib/sensor_pzem.h
@@ -29,8 +29,8 @@ enum sensor_pzem_measurement_type_t {
 	SENSOR_PZEM_CURRENT = 1,
 	SENSOR_PZEM_POWER = 2,
 	SENSOR_PZEM_ENERGY = 3,
-	SENSOR_PZEM_ADDRESS = 4,
-	SENSOR_PZEM_ALARM = 5,
+//	SENSOR_PZEM_ADDRESS = 4, // this is a setting, not a measurement
+//	SENSOR_PZEM_ALARM = 5, // this is a setting, not a measurement
 	SENSOR_PZEM_MAX
 };