diff --git a/RTD_8chanels_board.cs b/RTD_8chanels_board.cs
index 8b0ffa6..c12a902 100644
--- a/RTD_8chanels_board.cs
+++ b/RTD_8chanels_board.cs
@@ -1,6 +1,4 @@
-using System;
-using System.Device.Gpio;
-using System.Device.I2c;
+using System.Device.I2c;
 
 
 namespace Libs_SequentMicrosystems
@@ -46,11 +44,27 @@ namespace Libs_SequentMicrosystems
             return val;
         }
 
+        /// <summary>
+        /// Get data from all inputs on stack level
+        /// </summary>
+        /// <param name="stack">Number of level in stack</param>
+        /// <param name="precision">Number of decimals numbers of measured resistance</param>
+        /// <returns>Measured resistances of all inputs</returns>
+        public float[] GetStack(byte stack, byte precision = 2)
+        {
+            float[] chanels = new float[8]; //initialize float array
 
-        //public float[] GetStack(byte stack)
-        //{
+            chanels[0] = (float)Math.Round(Get(stack, 1), precision); //write readed value from input to array
+            chanels[1] = (float)Math.Round(Get(stack, 2), precision);
+            chanels[2] = (float)Math.Round(Get(stack, 3), precision);
+            chanels[3] = (float)Math.Round(Get(stack, 4), precision);
+            chanels[4] = (float)Math.Round(Get(stack, 5), precision);
+            chanels[5] = (float)Math.Round(Get(stack, 6), precision);
+            chanels[6] = (float)Math.Round(Get(stack, 7), precision);
+            chanels[7] = (float)Math.Round(Get(stack, 8), precision);
 
-        //}
+            return chanels; //return array
+        }
 
 
     }