diff --git a/geomagio/Metadata.py b/geomagio/Metadata.py
index 7f3b3cca9f71eba7cd39d378e57a671260c19306..4cdf471a3d913dad9c0f6c538043eb56f4b3286b 100644
--- a/geomagio/Metadata.py
+++ b/geomagio/Metadata.py
@@ -283,20 +283,28 @@ _INSTRUMENT_METADATA = [
         "start_time": None,
         "end_time": None,
         "instrument": {
-            "type": "Narod",
+            "type": "FGE",
             "channels": {
-                "U": [
-                    {"channel": "U_Volt", "offset": 0, "scale": 100},
-                    {"channel": "U_Bin", "offset": 0, "scale": 500},
-                ],
-                "V": [
-                    {"channel": "V_Volt", "offset": 0, "scale": 100},
-                    {"channel": "V_Bin", "offset": 0, "scale": 500},
-                ],
-                "W": [
-                    {"channel": "W_Volt", "offset": 0, "scale": 100},
-                    {"channel": "W_Bin", "offset": 0, "scale": 500},
-                ],
+                # each channel maps to a list of components to calculate nT
+                # TODO: calculate these lists based on "FGE" type
+                "U": [{"channel": "U_Volt", "offset": 21690, "scale": 978.4}],
+                "V": [{"channel": "V_Volt", "offset": 0, "scale": 971.0}],
+                "W": [{"channel": "W_Volt", "offset": 45532, "scale": 966.7}],
+            },
+            "electronics": {
+                "serial": "E570",
+                # these scale values are used to convert voltage
+                "x-scale": 978.4,  # nT/V
+                "y-scale": 971.0,  # nT/V
+                "z-scale": 966.7,  # nT/V
+                "temperature-scale": 0.01,  # V/K
+            },
+            "sensor": {
+                "serial": "S0445",
+                # these constants combine with instrument setting for offset
+                "x-constant": 37474,  # nT/mA
+                "y-constant": 37191,  # nT/mA
+                "z-constant": 37025,  # nT/mA
             },
         },
     },