diff --git a/fhem/FHEM/UConv.pm b/fhem/FHEM/UConv.pm
index d30855683..31ca61d6d 100644
--- a/fhem/FHEM/UConv.pm
+++ b/fhem/FHEM/UConv.pm
@@ -154,6 +154,12 @@ sub kph2mph($;$) {
     return roundX( $data * 0.621, $rnd );
 }
 
+# Speed: convert m/s (meter per seconds) to mph (miles per hour)
+sub mps2mph($;$) {
+    my ( $data, $rnd ) = @_;
+    return roundX( kph2mph( mps2kph( $data, 9 ), 9 ), $rnd );
+}
+
 # Length: convert mm (milimeter) to in (inch)
 sub mm2in($;$) {
     my ( $data, $rnd ) = @_;
@@ -222,6 +228,12 @@ sub mph2kph($;$) {
     return roundX( $data * 1.609344, $rnd );
 }
 
+# Speed: convert mph (miles per hour) to m/s (meter per seconds)
+sub mph2mps($;$) {
+    my ( $data, $rnd ) = @_;
+    return roundX( kph2mps( mph2kph( $data, 9 ), 9 ), $rnd );
+}
+
 # Length: convert in (inch) to mm (milimeter)
 sub in2mm($;$) {
     my ( $data, $rnd ) = @_;
@@ -270,6 +282,8 @@ sub direction2compasspoint($;$) {
 sub uwpscm2uvi($;$) {
     my ( $data, $rnd ) = @_;
 
+    return 0 unless ($data);
+
     # Forum topic,44403.msg501704.html#msg501704
     return int( ( $data - 100 ) / 450 + 1 ) unless ( defined($rnd) );
 
@@ -281,6 +295,7 @@ sub uwpscm2uvi($;$) {
 sub uvi2uwpscm($) {
     my ($data) = @_;
 
+    return 0 unless ($data);
     return ( $data * ( 450 + 1 ) ) + 100;
 }
 
@@ -292,6 +307,14 @@ sub lux2wpsm($;$) {
     return roundX( $data / 126.7, $rnd );
 }
 
+# Power: convert W/m2 to lux
+sub wpsm2lux($;$) {
+    my ( $data, $rnd ) = @_;
+
+    # Forum topic,44403.msg501704.html#msg501704
+    return roundX( $data * 126.7, $rnd );
+}
+
 #################################
 ### Nautic unit conversions
 ###
diff --git a/fhem/FHEM/Unit.pm b/fhem/FHEM/Unit.pm
index 66e5e2167..4f7f79d68 100644
--- a/fhem/FHEM/Unit.pm
+++ b/fhem/FHEM/Unit.pm
@@ -1374,7 +1374,7 @@ my $rtypes = {
         },
     },
 
-    # numbering
+    # decimal numbering
     short => {
         ref_base          => 25,
         format            => '%i',
@@ -1459,6 +1459,33 @@ my $rtypes = {
         scope => { minValue => 0, maxValue => 100 },
     },
 
+    # binary numbering
+    bin => {
+        rtype_description => {
+            de => 'Binärnummer',
+            en => 'Binary number',
+        },
+        scope => '^[01]+$',
+    },
+
+    # octal numbering
+    oct => {
+        rtype_description => {
+            de => 'Oktalnummer',
+            en => 'Octal number',
+        },
+        scope => '^[0-7]+$',
+    },
+
+    # hexadecimal numbering
+    hex => {
+        rtype_description => {
+            de => 'Hexadezimalnummer',
+            en => 'Hexadecimal number',
+        },
+        scope => '^[0-9a-fA-F]+$',
+    },
+
     # currency
 
     #https://en.wikipedia.org/wiki/Euro
@@ -1661,6 +1688,7 @@ my $rtypes = {
     inhg => {
         ref_base => 12,
         suffix   => 'inHg',
+        format       => '%.2f',
         txt      => {
             de => 'Zoll Quecksilbersäule',
             en => 'Inches of Mercury',