diff --git a/resources/instrument_cfgs/avhrr_3.json b/resources/instrument_cfgs/avhrr_3.json
index 7f83f7bd9..8412ea17d 100644
--- a/resources/instrument_cfgs/avhrr_3.json
+++ b/resources/instrument_cfgs/avhrr_3.json
@@ -168,7 +168,7 @@
         },
         {
             "name": "Sea Surface Temperature",
-            "expression": "IR11=(4, brightness_temperature, 270.15, 308.15);IR12=(5, brightness_temperature, 270.15, 308.15);lm=equp(maps/landmask.png);bm=equp(maps/nasa_hd.jpg);lut=lut(lut/cal/bluered.png);lm(0) == 0 ? (IR11-IR12 > 0.09 ? 1 : (IR11 < 0.25 ? 1 : lut(IR11, 0, 0))) : bm(0),lm(0) == 0 ? (IR11-IR12 > 0.09 ? 1 : (IR11 < 0.25 ? 1 : lut(IR11, 0, 1))) : bm(1),lm(0) == 0 ? (IR11-IR12 > 0.09 ? 1 : (IR11 < 0.25 ? 1 : lut(IR11, 0, 2))) : bm(2)",
+            "expression": "IR11=(4, brightness_temperature, 269.15, 309.15);IR12=(5, brightness_temperature, 269.15, 309.15);lm=equp(maps/landmask.png);bm=equp(maps/nasa_hd.jpg);lut=lut(lut/cal/SST_-4+36.png);lm(0) == 0 ? (IR11-IR12 > 0.09 ? 1 : (IR11 < 0.25 ? 1 : lut(IR11, 0, 0))) : bm(0),lm(0) == 0 ? (IR11-IR12 > 0.09 ? 1 : (IR11 < 0.25 ? 1 : lut(IR11, 0, 1))) : bm(1),lm(0) == 0 ? (IR11-IR12 > 0.09 ? 1 : (IR11 < 0.25 ? 1 : lut(IR11, 0, 2))) : bm(2)",
             "description": "descriptions/SST.md",
             "image": {
                 "geo_correct": true
diff --git a/resources/instrument_cfgs/msu_mr.json b/resources/instrument_cfgs/msu_mr.json
index 220626993..343dde3a5 100644
--- a/resources/instrument_cfgs/msu_mr.json
+++ b/resources/instrument_cfgs/msu_mr.json
@@ -107,8 +107,7 @@
         },
         {
             "name": "Sea Surface Temperature",
-            "expression": "IR11=(5, brightness_temperature, 270.15, 308.15);IR12=(6, brightness_temperature, 270.15, 308.15);lm=equp(maps/landmask.png);bm=equp(maps/nasa_hd.jpg);lut=lut(lut/cal/bluered.png);lm(0) == 0 ? (IR11-IR12 > 0.09 ? 1 : (IR11 < 0.25 ? 1 : lut(IR11, 0, 0))) : bm(0),lm(0) == 0 ? (IR11-IR12 > 0.09 ? 1 : (IR11 < 0.25 ? 1 : lut(IR11, 0, 1))) : bm(1),lm(0) == 0 ? (IR11-IR12 > 0.09 ? 1 : (IR11 < 0.25 ? 1 : lut(IR11, 0, 2))) : bm(2)",
-            "description": "descriptions/SST.md",
+"expression": "IR11=(5, brightness_temperature, 269.15, 309.15);IR12=(6, brightness_temperature, 269.15, 309.15);lm=equp(maps/landmask.png);bm=equp(maps/nasa_hd.jpg);lut=lut(lut/cal/SST_-4+36.png);lm(0) == 0 ? (IR11-IR12 > 0.09 ? 1 : (IR11 < 0.25 ? 1 : lut(IR11, 0, 0))) : bm(0),lm(0) == 0 ? (IR11-IR12 > 0.09 ? 1 : (IR11 < 0.25 ? 1 : lut(IR11, 0, 1))) : bm(1),lm(0) == 0 ? (IR11-IR12 > 0.09 ? 1 : (IR11 < 0.25 ? 1 : lut(IR11, 0, 2))) : bm(2)",            "description": "descriptions/SST.md",
             "image": {
                 "geo_correct": true
             }
diff --git a/resources/lut/cal/SST_-4+36.png b/resources/lut/cal/SST_-4+36.png
new file mode 100644
index 000000000..9fd73d43b
Binary files /dev/null and b/resources/lut/cal/SST_-4+36.png differ