diff --git a/synoptic/metadata/L1_metadata/L1_metadata_variables.csv b/synoptic/metadata/L1_metadata/L1_metadata_variables.csv
index 76d47f8..4459665 100644
--- a/synoptic/metadata/L1_metadata/L1_metadata_variables.csv
+++ b/synoptic/metadata/L1_metadata/L1_metadata_variables.csv
@@ -3,10 +3,10 @@ Datalogger,BattV,battery_voltage,V,V,x * 1,11,13,Battery voltage of the data log
 Datalogger,SolarV,solar_voltage,V,V,x * 1,0,30,Solar/line voltage of the data logger
 Sapflow,DiffVolt_Avg,sapflow_2.5cm,mV,mV,x * 1,0,1,Raw sap flow at 2.5 cm depth
 Sapflow,DiffVolt_Avg,sapflow_5cm,mV,mV,x * 1,0,1,Raw sap flow at 5 cm depth
-RedoxTable,Redox,redox_10cm,mV,mV,x * 1,-1000,1000,"Redox at 10 cm; ""A"" probes are XXX, ""B"" probes are XXX"
-RedoxTable,Redox,redox_25cm,mV,mV,x * 1,-1000,1000,"Redox at 25 cm; ""A"" probes are XXX, ""B"" probes are XXX"
-RedoxTable,Redox,redox_35cm,mV,mV,x * 1,-1000,1000,"Redox at 35 cm; ""A"" probes are XXX, ""B"" probes are XXX"
-RedoxTable,Redox,redox_55cm,mV,mV,x * 1,-1000,1000,"Redox at 55 cm; ""A"" probes are XXX, ""B"" probes are XXX"
+RedoxTable,Redox,redox_10cm,mV,mV,x * 1,-1000,1000,"Redox at 10 cm depth; each sensor measures two values based on electrode ""A"" or ""B"" reference probes"
+RedoxTable,Redox,redox_25cm,mV,mV,x * 1,-1000,1000,"Redox at 25 cm depth; each sensor measures two values based on electrode ""A"" or ""B"" reference probes"
+RedoxTable,Redox,redox_35cm,mV,mV,x * 1,-1000,1000,"Redox at 35 cm depth; each sensor measures two values based on electrode ""A"" or ""B"" reference probes"
+RedoxTable,Redox,redox_55cm,mV,mV,x * 1,-1000,1000,"Redox at 55 cm depth; each sensor measures two values based on electrode ""A"" or ""B"" reference probes"
 TerosTable,VWC,soil_vwc_5cm,m3/m3,m3/m3,(3.879*10^-4) * x - 0.6956,0,0.7,Soil volumetric water content at 5 cm calibrated for mineral soil
 TerosTable,TSOIL,soil_temp_5cm,degC,degC,x * 1,-40,60,Soil temperature at 5 cm
 TerosTable,EC,soil_EC_5cm,µS/cm,µS/cm,x * 1,0,20000,Soil electrical conductivity at 5 cm