diff --git a/dummies/TemperatureSensorInserter.cpp b/dummies/TemperatureSensorInserter.cpp
index 58748e87..efbec2d0 100644
--- a/dummies/TemperatureSensorInserter.cpp
+++ b/dummies/TemperatureSensorInserter.cpp
@@ -5,23 +5,22 @@
 #include <cmath>
 #include <cstdlib>
 
-TemperatureSensorInserter::TemperatureSensorInserter(
-    object_id_t objectId, const std::map<object_id_t, Max31865Dummy*>& tempSensorDummies_,
-    const std::map<object_id_t, Tmp1075Dummy*>& tempTmpSensorDummies_)
-    : SystemObject(objects::THERMAL_TEMP_INSERTER) {}
+TemperatureSensorInserter::TemperatureSensorInserter(object_id_t objectId,
+                                                     const Max31865DummyMap& tempSensorDummies_,
+                                                     const Tmp1075DummyMap& tempTmpSensorDummies_)
+    : SystemObject(objects::THERMAL_TEMP_INSERTER),
+      max31865DummyMap(tempSensorDummies_),
+      tmp1075DummyMap(tempTmpSensorDummies_) {}
 
 ReturnValue_t TemperatureSensorInserter::initialize() {
   if (performTest) {
-    if (testCase == TestCase::OVERCOOL_SYRLINKS) {
+    if (testCase == TestCase::COOL_SYRLINKS) {
     }
   }
   return returnvalue::OK;
 }
 
 ReturnValue_t TemperatureSensorInserter::performOperation(uint8_t opCode) {
-  iteration++;
-  value = sin(iteration / 80. * M_PI) * 10;
-
   /*
   ReturnValue_t result = max31865PlocHeatspreaderSet.read();
   if (result != returnvalue::OK) {
diff --git a/dummies/TemperatureSensorInserter.h b/dummies/TemperatureSensorInserter.h
index cf858576..ff3f939e 100644
--- a/dummies/TemperatureSensorInserter.h
+++ b/dummies/TemperatureSensorInserter.h
@@ -8,9 +8,11 @@
 
 class TemperatureSensorInserter : public ExecutableObjectIF, public SystemObject {
  public:
-  explicit TemperatureSensorInserter(
-      object_id_t objectId, const std::map<object_id_t, Max31865Dummy*>& tempSensorDummies_,
-      const std::map<object_id_t, Tmp1075Dummy*>& tempTmpSensorDummies_);
+  using Max31865DummyMap = std::map<object_id_t, Max31865Dummy*>;
+  using Tmp1075DummyMap = std::map<object_id_t, Tmp1075Dummy*>;
+  explicit TemperatureSensorInserter(object_id_t objectId,
+                                     const Max31865DummyMap& tempSensorDummies_,
+                                     const Tmp1075DummyMap& tempTmpSensorDummies_);
 
   ReturnValue_t initialize() override;
 
@@ -18,11 +20,12 @@ class TemperatureSensorInserter : public ExecutableObjectIF, public SystemObject
   ReturnValue_t performOperation(uint8_t opCode) override;
 
  private:
-  enum TestCase { OVERCOOL_SYRLINKS = 0 };
+  Max31865DummyMap max31865DummyMap;
+  Tmp1075DummyMap tmp1075DummyMap;
+  enum TestCase { NONE = 0, COOL_SYRLINKS = 1 };
   int iteration = 0;
   bool performTest = false;
-  float value = 0;
-  TestCase testCase;
+  TestCase testCase = TestCase::NONE;
 
   // void noise();
 };