diff --git a/lib/arraymember.ps1 b/lib/arraymember.ps1
index 11d04ca..882dcef 100644
--- a/lib/arraymember.ps1
+++ b/lib/arraymember.ps1
@@ -43,10 +43,16 @@ class FloatArrayMember : ArrayMember {
     [int]$decimals
     
     FloatArrayMember (
-        [int]$index, [string]$prefix, [Object]$parent, [int]$decimals = 1
+        [int]$index, [string]$prefix, [Object]$parent, [int]$decimals
     ) : base ($index, $prefix, $parent) {
         $this.decimals = $decimals
     }
+
+    FloatArrayMember (
+        [int]$index, [string]$prefix, [Object]$parent
+    ) : base ($index, $prefix, $parent) {
+        $this.decimals = 2
+    }
     
     [double] Get () {
         return [math]::Round($this.Getter(''), $this.decimals)
diff --git a/lib/option.ps1 b/lib/option.ps1
index cf60f55..581dd3d 100644
--- a/lib/option.ps1
+++ b/lib/option.ps1
@@ -14,7 +14,7 @@ class Option : IRemote {
         
         $this.delay = @()
         for ($i = 0; $i -lt $num_A; $i++) {
-            $this.delay.Add([FloatArrayMember]::new($i, 'delay', $this, 2))
+            $this.delay.Add([FloatArrayMember]::new($i, 'delay', $this))
         }
     }