diff --git a/Makefile b/Makefile
index e14b66b..ab741c0 100644
--- a/Makefile
+++ b/Makefile
@@ -175,7 +175,7 @@ all: $(BUILD)/wmbusmeters $(BUILD)/wmbusmeters-admin $(BUILD)/testinternals
 	@$(STRIP_BINARY)
 	@cp $(BUILD)/wmbusmeters $(BUILD)/wmbusmetersd
 
-dist: wmbusmeters_$(DEBVERSION)_$(DEBARCH).deb
+deb: wmbusmeters_$(DEBVERSION)_$(DEBARCH).deb
 
 install: $(BUILD)/wmbusmeters
 	@./install.sh $(BUILD)/wmbusmeters $(DESTDIR) $(EXTRA_INSTALL_OPTIONS)
@@ -193,6 +193,10 @@ wmbusmeters_$(DEBVERSION)_$(DEBARCH).deb:
 	@echo "Maintainer: Fredrik Öhrström" >> $(BUILD)/debian/wmbusmeters/DEBIAN/control
 	@echo "Architecture: $(DEBARCH)" >> $(BUILD)/debian/wmbusmeters/DEBIAN/control
 	@echo "Description: A tool to read wireless mbus telegrams from utility meters." >> $(BUILD)/debian/wmbusmeters/DEBIAN/control
+	@for x in preinst postinst prerm postrm ; do \
+		cp scripts/$$x $(BUILD)/debian/wmbusmeters/DEBIAN/ ; \
+		chmod 555 $(BUILD)/debian/wmbusmeters/DEBIAN/$$x ; \
+	done
 	@(cd $(BUILD)/debian; dpkg-deb --build wmbusmeters .)
 	@mv $(BUILD)/debian/wmbusmeters_$(DEBVERSION)_$(DEBARCH).deb .
 	@echo Built package $@
diff --git a/scripts/postinst b/scripts/postinst
old mode 100644
new mode 100755
index 25293d3..316e7b9
--- a/scripts/postinst
+++ b/scripts/postinst
@@ -1,3 +1,74 @@
 #!/bin/sh
 
 # Start wmbusmeters service
+
+if [ $(getent group wmbusmeters) ]
+then
+    echo "group: wmbusmeters unmodified"
+else
+    groupadd -f wmbusmeters
+    echo "group: added wmbusmeters"
+fi
+
+ID=$(id -u wmbusmeters 2>/dev/null)
+
+if [ -f /usr/sbin/nologin ]
+then
+    USERSHELL="/usr/sbin/nologin"
+elif [ -f /sbin/nologin ]
+then
+    USERSHELL="/sbin/nologin"
+else
+    USERSHELL="/bin/false"
+fi
+
+if [ -z "$ID" ]
+then
+    # Create the wmbusmeters user
+    useradd --system --shell $USERSHELL -g wmbusmeters wmbusmeters
+    echo "user: added wmbusmeters"
+else
+    echo "user: wmbusmeters unmodified"
+fi
+
+if [ $(getent group dialout) ]
+then
+    if [ "$(groups wmbusmeters | grep -o dialout)" = "" ]
+    then
+        # Add the wmbusmeters user to dialout
+        usermod -a -G dialout wmbusmeters
+        echo "user: added wmbusmeters to dialout group"
+    else
+        echo "user: wmbusmeters already added to dialout"
+    fi
+else
+    echo "dialout group does not exist"
+fi
+
+if [ $(getent group uucp) ]
+then
+    if [ "$(groups wmbusmeters | grep -o uucp)" = "" ]
+    then
+        # Add the wmbusmeters user to uucp
+        usermod -a -G uucp wmbusmeters
+        echo "user: added wmbusmeters to uucp group"
+    else
+        echo "user: wmbusmeters already added to uucp"
+    fi
+else
+    echo "uucp group does not exist"
+fi
+
+if [ $(getent group plugdev) ]
+then
+    if [ "$(groups wmbusmeters | grep -o plugdev)" = "" ]
+    then
+        # Add the wmbusmeters user to plugdev
+        usermod -a -G plugdev wmbusmeters
+        echo "user: added wmbusmeters to plugdev group"
+    else
+        echo user: wmbusmeters already added to plugdev
+    fi
+else
+    echo "plugdev group does not exist"
+fi
diff --git a/scripts/postrm b/scripts/postrm
old mode 100644
new mode 100755
index 779e73e..98d3967
--- a/scripts/postrm
+++ b/scripts/postrm
@@ -1,3 +1,11 @@
 #!/bin/bash
 
-# More cleanup?
\ No newline at end of file
+# More cleanup?
+
+ID=$(id -u wmbusmeters 2>/dev/null)
+
+if [ ! "$ID" = "" ]
+then
+    userdel wmbusmeters
+    echo user: removed wmbusmeters
+fi
diff --git a/scripts/preinst b/scripts/preinst
old mode 100644
new mode 100755
index c0798dc..3264ed9
--- a/scripts/preinst
+++ b/scripts/preinst
@@ -1,3 +1,4 @@
 #!/bin/sh
 
 # Shutdown wmbusmeters service if it is running.
+systemctl stop wmbusmeters.service
diff --git a/scripts/prerm b/scripts/prerm
old mode 100644
new mode 100755
index 41f79c6..65f7820
--- a/scripts/prerm
+++ b/scripts/prerm
@@ -1,3 +1,6 @@
 #!/bin/bash
 
-# Stop the service
\ No newline at end of file
+# Stop the service
+
+echo "Stopping any wmbusmeters.service running..."
+systemctl stop wmbusmeters.service || true
diff --git a/simulations/simulation_t1.txt b/simulations/simulation_t1.txt
index e3853dc..0a36af4 100644
--- a/simulations/simulation_t1.txt
+++ b/simulations/simulation_t1.txt
@@ -110,6 +110,12 @@ telegram=|2944A511780729662366A20118001378D3B3DB8CEDD77731F25832AAF3DA8CADF9774E
 {"media":"water","meter":"izar","name":"IzarWater2","id":"66290778","total_m3":16.76,"last_month_total_m3":11.84,"last_month_measure_date":"2019-11-30","remaining_battery_life_y":12,"current_alarms":"no_alarm","previous_alarms":"no_alarm","timestamp":"1111-11-11T11:11:11Z"}
 |IzarWater2;66290778;16.760000;11.840000;2019-11-30;12.000000;no_alarm;no_alarm;1111-11-11 11:11.11
 
+# Yet another silly version of IZAR, come again, type 0x20 = Breaker (electricity) for a water meter!
+
+telegram=|1944A511780779194820A1|21170013355F8EDB2D03C6912B1E37
+{"media":"water","meter":"izar","name":"IzarWater3","id":"19790778","total_m3":4.366,"last_month_total_m3":0,"last_month_measure_date":"2020-12-31","remaining_battery_life_y":11.5,"current_alarms":"no_alarm","previous_alarms":"no_alarm","timestamp":"1111-11-11T11:11:11Z"}
+|IzarWater3;19790778;4.366000;0.000000;2020-12-31;11.500000;no_alarm;no_alarm;1111-11-11 11:11.11
+
 # Test Hydrus water meter telegram
 telegram=|4E44A5116464646470077AED004005|2F2F01FD08300C13741100007C1300000000FC101300000000FC201300000000726C00000B3B00000002FD748713025A6800C4016D3B177F2ACC011300020000|
 {"media":"water","meter":"hydrus","name":"HydrusWater","id":"64646464","total_m3":1.174,"max_flow_m3h":0,"flow_temperature_c":10.4,"total_at_date_m3":0.2,"at_date":"2019-10-31 23:59","remaining_battery_life_y":13.686516,"status":"OK","timestamp":"1111-11-11T11:11:11Z"}
diff --git a/src/meters.h b/src/meters.h
index b78b1fa..8fd95cb 100644
--- a/src/meters.h
+++ b/src/meters.h
@@ -117,6 +117,7 @@
     X(IZAR,      MANUFACTURER_SAP,  0x66,    -1) \
     X(IZAR,      MANUFACTURER_DME,  0x66,    -1) \
     X(IZAR,      MANUFACTURER_DME,  0x19,  0x00) \
+    X(IZAR,      MANUFACTURER_DME,  0x20,  0x48) \
     X(IZAR3,     MANUFACTURER_SAP,  0x00,  0x88) \
     X(LANSENSM,  MANUFACTURER_LAS,  0x1a,  0x03) \
     X(LANSENTH,  MANUFACTURER_LAS,  0x1b,  0x07) \
diff --git a/tests/test_listen_to_all.sh b/tests/test_listen_to_all.sh
index 9ec88aa..ba82828 100755
--- a/tests/test_listen_to_all.sh
+++ b/tests/test_listen_to_all.sh
@@ -120,6 +120,11 @@ Received telegram from: 66290778
                   type: Unknown (0x66)
                    ver: 0x23
                 driver: izar
+Received telegram from: 19790778
+          manufacturer: (DME) DIEHL Metering, Germany (0x11a5)
+                  type: Breaker (electricity) (0x20)
+                   ver: 0x48
+                driver: izar
 Received telegram from: 64646464
           manufacturer: (DME) DIEHL Metering, Germany (0x11a5)
                   type: Water meter (0x07)
diff --git a/tests/test_t1_meters.sh b/tests/test_t1_meters.sh
index 0c68b6e..b1953f5 100755
--- a/tests/test_t1_meters.sh
+++ b/tests/test_t1_meters.sh
@@ -26,6 +26,7 @@ METERS="MyWarmWater supercom587 12345678 NOKEY
       Rummet      rfmamb      11772288 NOKEY
       IzarWater   izar        21242472 NOKEY
       IzarWater2  izar        66290778 NOKEY
+      IzarWater3  izar        19790778 NOKEY
       HydrusWater hydrus      64646464 NOKEY
       HydrusVater hydrus      65656565 NOKEY
       HydrodigitWater hydrodigit 86868686 NOKEY