diff --git a/pytec/pytec/gui/view/param_tree.json b/pytec/pytec/gui/view/param_tree.json
index 071f058..da44132 100644
--- a/pytec/pytec/gui/view/param_tree.json
+++ b/pytec/pytec/gui/view/param_tree.json
@@ -40,7 +40,7 @@
                 "children":[
                    {
                       "name":"set_current",
-                      "title":"Set Current",
+                      "title":"Set Current (mA)",
                       "type":"float",
                       "value":0,
                       "step":100,
@@ -50,7 +50,6 @@
                       ],
                       "triggerOnShow":true,
                       "decimals":6,
-                      "suffix":"mA",
                       "param":[
                          "pwm",
                          "ch",
@@ -60,7 +59,7 @@
                    },
                    {
                       "name": "set_temperature",
-                      "title":"Set Temperature",
+                      "title":"Set Temperature (°C)",
                       "type":"float",
                       "value":25,
                       "step":0.1,
@@ -68,7 +67,7 @@
                          -273,
                          300
                       ],
-                      "format":"{value:.4f} °C",
+                      "format":"{value:.4f}",
                       "param":[
                          "pid",
                          "ch",
@@ -86,7 +85,7 @@
                 "children":[
                    {
                       "name":"max_i_pos",
-                      "title":"Max Cooling Current",
+                      "title":"Max Cooling Current (mA)",
                       "type":"float",
                       "value":0,
                       "step":100,
@@ -95,7 +94,6 @@
                          0,
                          2000
                       ],
-                      "suffix":"mA",
                       "param":[
                          "pwm",
                          "ch",
@@ -105,7 +103,7 @@
                    },
                    {
                       "name":"max_i_neg",
-                      "title":"Max Heating Current",
+                      "title":"Max Heating Current (mA)",
                       "type":"float",
                       "value":0,
                       "step":100,
@@ -114,7 +112,6 @@
                          0,
                          2000
                       ],
-                      "suffix":"mA",
                       "param":[
                          "pwm",
                          "ch",
@@ -124,7 +121,7 @@
                    },
                    {
                       "name":"max_v",
-                      "title":"Max Voltage Difference",
+                      "title":"Max Voltage Difference (V)",
                       "type":"float",
                       "value":0,
                       "step":0.1,
@@ -133,7 +130,6 @@
                          5
                       ],
                       "siPrefix":true,
-                      "suffix":"V",
                       "param":[
                          "pwm",
                          "ch",
@@ -154,7 +150,7 @@
           "children":[
              {
                 "name":"t0",
-                "title":"T₀",
+                "title":"T₀ (°C)",
                 "type":"float",
                 "value":25,
                 "step":0.1,
@@ -162,7 +158,7 @@
                    -100,
                    100
                 ],
-                "format":"{value:.4f} °C",
+                "format":"{value:.4f}",
                 "param":[
                    "s-h",
                    "ch",
@@ -173,12 +169,11 @@
              },
              {
                 "name":"r0",
-                "title":"R₀",
+                "title":"R₀ (Ω)",
                 "type":"float",
                 "value":10000,
                 "step":1,
                 "siPrefix":true,
-                "suffix":"Ω",
                 "param":[
                    "s-h",
                    "ch",
@@ -189,11 +184,10 @@
              },
              {
                 "name":"b",
-                "title":"B",
+                "title":"B (K)",
                 "type":"float",
                 "value":3950,
                 "step":1,
-                "suffix":"K",
                 "decimals":4,
                 "param":[
                    "s-h",
@@ -276,7 +270,7 @@
                 "children":[
                    {
                       "name":"output_min",
-                      "title":"Minimum",
+                      "title":"Minimum (mA)",
                       "type":"float",
                       "step":100,
                       "limits":[
@@ -284,7 +278,6 @@
                          2000
                       ],
                       "decimals":6,
-                      "suffix":"mA",
                       "param":[
                          "pid",
                          "ch",
@@ -294,7 +287,7 @@
                    },
                    {
                       "name":"output_max",
-                      "title":"Maximum",
+                      "title":"Maximum (mA)",
                       "type":"float",
                       "step":100,
                       "limits":[
@@ -302,7 +295,6 @@
                          2000
                       ],
                       "decimals":6,
-                      "suffix":"mA",
                       "param":[
                          "pid",
                          "ch",
@@ -320,11 +312,11 @@
                 "children":[
                    {
                       "name":"target_temp",
-                      "title":"Target Temperature",
+                      "title":"Target Temperature (°C)",
                       "type":"float",
                       "value":20,
                       "step":0.1,
-                      "format":"{value:.4f} °C",
+                      "format":"{value:.4f}",
                       "pid_autotune":[
                          "target_temp",
                          "ch"
@@ -332,7 +324,7 @@
                    },
                    {
                       "name":"test_current",
-                      "title":"Test Current",
+                      "title":"Test Current (mA)",
                       "type":"float",
                       "value":0,
                       "decimals":6,
@@ -341,7 +333,6 @@
                          -2000,
                          2000
                       ],
-                      "suffix":"mA",
                       "pid_autotune":[
                          "test_current",
                          "ch"
@@ -349,12 +340,12 @@
                    },
                    {
                       "name":"temp_swing",
-                      "title":"Temperature Swing",
+                      "title":"Temperature Swing (°C)",
                       "type":"float",
                       "value":1.5,
                       "step":0.1,
                       "prefix":"±",
-                      "format":"{value:.4f} °C",
+                      "format":"{value:.4f}",
                       "pid_autotune":[
                          "temp_swing",
                          "ch"
@@ -362,11 +353,11 @@
                    },
                    {
                      "name":"lookback",
-                     "title":"Lookback",
+                     "title":"Lookback (s)",
                      "type":"float",
                      "value":3.0,
                      "step":0.1,
-                     "format":"{value:.4f} s",
+                     "format":"{value:.4f}",
                      "pid_autotune":[
                         "lookback",
                         "ch"