diff --git a/src/lasp/__init__.py b/src/lasp/__init__.py
index 091899c..b6f3e90 100644
--- a/src/lasp/__init__.py
+++ b/src/lasp/__init__.py
@@ -13,6 +13,7 @@ from .lasp_octavefilter import *
 from .lasp_slm import *  # SLM, Dummy
 from .lasp_record import *  # RecordStatus, Recording
 from .lasp_daqconfigs import *
+from .lasp_measurementset import *
 # from .lasp_siggen import *  # SignalType, NoiseType, SiggenMessage, SiggenData, Siggen
 # from .lasp_weighcal import *  # WeighCal
 # from .tools import *  # SmoothingType, smoothSpectralData, SmoothingWidth
diff --git a/src/lasp/lasp_measurementset.py b/src/lasp/lasp_measurementset.py
index e69de29..6010b7a 100644
--- a/src/lasp/lasp_measurementset.py
+++ b/src/lasp/lasp_measurementset.py
@@ -0,0 +1,66 @@
+"""
+Provides class MeasurementSet, a class used to perform checks and adjustments
+on a group of measurements at the same time.
+
+"""
+__all__ = ['MeasurementSet']
+from .lasp_measurement import Measurement
+from typing import List
+
+
+class MeasurementSet(list):
+    """
+    Group of measurements that have some correspondence to one another. Class
+    is used to operate on multiple measurements at once.
+
+    """
+    def __init__(self, mlist: List[Measurement] =[]):
+        """
+        Initialize a measurement set
+
+        Args:
+            mlist: Measurement list
+
+        """
+        if any([not isinstance(i, Measurement) for i in mlist]):
+            raise TypeError('Object in list should be of Measurement type')
+
+        super().__init__(mlist)
+
+    def measTimeSame(self):
+        """
+        Returns True if all measurements have the same measurement
+        time (recorded time)
+
+        """
+        if len(self) > 0:
+            first = self[0].N
+            return all([first == meas.N for meas in self])
+        else:
+            return False
+
+    def measSimilar(self):
+        """
+        Similar means: channel metadata is the same, and the measurement time
+        is the same. It means that the recorded data is, of course, different.
+
+        Returns:
+            True if measChannelsSame() and measTimeSame() else False
+
+        """
+        return self.measTimeSame() and self.measChannelsSame()
+
+
+    def measChannelsSame(self):
+        """
+        This method is used to check whether a set of measurements can be
+        accessed in a loop, i.e. for computing power spectra or sound levels on
+        a set of measurements, simultaneously. If the channel data is the same
+        (name, sensitivity, ...) it returns True.
+        """
+        if len(self) > 0:
+            first = self[0].channelConfig
+            return all([first == meas.channelConfig for meas in self])
+        else:
+            return False
+