diff --git a/CHANGELOG.md b/CHANGELOG.md
index c3c026286..be69e5a2e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,80 @@
 # Change Log
 
+This release adds support for the following new devices:
+
+* Xiaomi Air Quality Monitor S1 \(cgllc.airmonitor.s1\)
+* Xiaomi Mi Dehumidifier V1 \(nwt.derh.wdh318efw1\)
+* Xiaomi Mi Roborock M1S and Mi Robot S1
+* Xiaomi Mijia 360 1080p camera \(chuangmi.camera.ipc009\)
+* Xiaomi Mi Smart Fan \(zhimi.fan.za3, zhimi.fan.za4, dmaker.fan.p5\)
+* Xiaomi Smartmi Pure Evaporative Air Humidifier \(zhimi.humidifier.cb1\)
+* Xiaomi Tinymu Smart Toilet Cover
+* Xiaomi 16 Relays Module
+
+Fixes & Enhancements:
+
+* Air Conditioning Companion: Add particular swing mode values of a chigo air conditioner
+* Air Humidifier: Handle poweroff exception on set\_mode
+* Chuangmi IR controller: Add indicator led support
+* Chuangmi IR controller: Add discovery of the Xiaomi IR remote 2gen \(chuangmi.remote.h102a03\)
+* Chuangmi Plug: Fix set\_wifi\_led cli command
+* Vacuum: Add state 18 as "segment cleaning"
+* Device: Add easily accessible properties to DeviceError exception
+* Always import DeviceError exception
+* Require click version \>=7
+* Remove pretty\_cron and typing dependencies from requirements.txt
+
+## [0.4.6](https://github.com/rytilahti/python-miio/tree/0.4.6)
+
+[Full Changelog](https://github.com/rytilahti/python-miio/compare/0.4.5...0.4.6)
+
+**Closed issues:**
+
+- Roborock Vacuum Bin full [\#546](https://github.com/rytilahti/python-miio/issues/546)
+- Add support for Xiao AI Smart Alarm Clock [\#538](https://github.com/rytilahti/python-miio/issues/538)
+- rockrobo.vacuum.v1 Error: No response from the device [\#536](https://github.com/rytilahti/python-miio/issues/536)
+- Assistance [\#532](https://github.com/rytilahti/python-miio/issues/532)
+- Unsupported device found - roborock.vacuum.s5 [\#527](https://github.com/rytilahti/python-miio/issues/527)
+- Discovery mode to chuangmi\_camera. [\#522](https://github.com/rytilahti/python-miio/issues/522)
+- 新款小米1X电风扇不支持 [\#520](https://github.com/rytilahti/python-miio/issues/520)
+- Add swing mode of a Chigo Air Conditioner [\#518](https://github.com/rytilahti/python-miio/issues/518)
+- Discover not working with Mi AirHumidifier CA1  [\#514](https://github.com/rytilahti/python-miio/issues/514)
+- Question about vacuum errors\_codes duration [\#511](https://github.com/rytilahti/python-miio/issues/511)
+- Support device model dmaker.fan.p5 [\#510](https://github.com/rytilahti/python-miio/issues/510)
+- Roborock S50: ERROR:miio.updater:No request was made.. [\#508](https://github.com/rytilahti/python-miio/issues/508)
+- Roborock S50: losing connection with mirobo [\#507](https://github.com/rytilahti/python-miio/issues/507)
+- Support for Xiaomi IR Remote \(chuangmi.remote.v2\) [\#506](https://github.com/rytilahti/python-miio/issues/506)
+- Support for Humidifier new model: zhimi.humidifier.cb1 [\#492](https://github.com/rytilahti/python-miio/issues/492)
+- impossible to get the last version \(0.4.5\) or even the 0.4.4 [\#489](https://github.com/rytilahti/python-miio/issues/489)
+- Getting the token of Air Purifier Pro v7 [\#461](https://github.com/rytilahti/python-miio/issues/461)
+- Moonlight sync with HA [\#452](https://github.com/rytilahti/python-miio/issues/452)
+- Replace pretty-cron dependency with cron\_descriptor [\#423](https://github.com/rytilahti/python-miio/issues/423)
+
+**Merged pull requests:**
+
+- remove pretty\_cron and typing dependencies from requirements.txt [\#548](https://github.com/rytilahti/python-miio/pull/548) ([rytilahti](https://github.com/rytilahti))
+- Add tinymu smart toiletlid [\#544](https://github.com/rytilahti/python-miio/pull/544) ([scp10011](https://github.com/scp10011))
+- Add support for Air Quality Monitor S1 \(cgllc.airmonitor.s1\) [\#539](https://github.com/rytilahti/python-miio/pull/539) ([zhumuht](https://github.com/zhumuht))
+- Add pwzn relay [\#537](https://github.com/rytilahti/python-miio/pull/537) ([SchumyHao](https://github.com/SchumyHao))
+- add mi dehumidifier v1 \(nwt.derh.wdh318efw1\) [\#535](https://github.com/rytilahti/python-miio/pull/535) ([stkang](https://github.com/stkang))
+- add mi robot s1 \(m1s\) to discovery [\#531](https://github.com/rytilahti/python-miio/pull/531) ([rytilahti](https://github.com/rytilahti))
+- Add preliminary Roborock M1S / Mi Robot S1 support [\#526](https://github.com/rytilahti/python-miio/pull/526) ([syssi](https://github.com/syssi))
+- Add state 18 as "segment cleaning" [\#525](https://github.com/rytilahti/python-miio/pull/525) ([syssi](https://github.com/syssi))
+- Add particular swing mode values of a chigo air conditioner [\#519](https://github.com/rytilahti/python-miio/pull/519) ([syssi](https://github.com/syssi))
+- Add chuangmi.camera.ipc009 support [\#516](https://github.com/rytilahti/python-miio/pull/516) ([impankratov](https://github.com/impankratov))
+- Add zhimi.fan.za3 support [\#515](https://github.com/rytilahti/python-miio/pull/515) ([syssi](https://github.com/syssi))
+- Add dmaker.fan.p5 support [\#513](https://github.com/rytilahti/python-miio/pull/513) ([syssi](https://github.com/syssi))
+- Add zhimi.fan.za4 support [\#512](https://github.com/rytilahti/python-miio/pull/512) ([syssi](https://github.com/syssi))
+- Require click version \>=7 [\#503](https://github.com/rytilahti/python-miio/pull/503) ([fvollmer](https://github.com/fvollmer))
+- Add indicator led support of the chuangmi.remote.h102a03 and chuangmi.remote.v2 [\#500](https://github.com/rytilahti/python-miio/pull/500) ([syssi](https://github.com/syssi))
+- Chuangmi Plug: Fix set\_wifi\_led cli command [\#499](https://github.com/rytilahti/python-miio/pull/499) ([syssi](https://github.com/syssi))
+- Add discovery of the Xiaomi IR remote 2gen \(chuangmi.remote.h102a03\) [\#497](https://github.com/rytilahti/python-miio/pull/497) ([syssi](https://github.com/syssi))
+- Air Humidifier: Handle poweroff exception on set\_mode [\#496](https://github.com/rytilahti/python-miio/pull/496) ([syssi](https://github.com/syssi))
+- Add zhimi.humidifier.cb1 support [\#493](https://github.com/rytilahti/python-miio/pull/493) ([antylama](https://github.com/antylama))
+- Add easily accessible properties to DeviceError exception [\#488](https://github.com/rytilahti/python-miio/pull/488) ([syssi](https://github.com/syssi))
+- Always import DeviceError exception [\#487](https://github.com/rytilahti/python-miio/pull/487) ([syssi](https://github.com/syssi))
+
+
 ## [0.4.5](https://github.com/rytilahti/python-miio/tree/0.4.5)
 
 This release adds support for the following new devices:
diff --git a/README.rst b/README.rst
index 2d7270df1..2e79aa921 100644
--- a/README.rst
+++ b/README.rst
@@ -1,7 +1,7 @@
 python-miio
 ===========
 
-|PyPI version| |Build Status| |Code Health| |Coverage Status| |Docs| |Hound|
+|PyPI version| |Build Status| |Coverage Status| |Docs| |Hound|
 
 This library (and its accompanying cli tool) is used to interface with devices using Xiaomi's `miIO protocol <https://github.com/OpenMiHome/mihome-binary-protocol/blob/master/doc/PROTOCOL.md>`__.
 
@@ -9,7 +9,7 @@ This library (and its accompanying cli tool) is used to interface with devices u
 Supported devices
 -----------------
 
--  :doc:`Xiaomi Mi Robot Vacuum <vacuum>` (:class:`miio.vacuum`)
+-  :doc:`Xiaomi Mi Robot Vacuum <vacuum>` V1, S5, M1S (:class:`miio.vacuum`)
 -  Xiaomi Mi Home Air Conditioner Companion (:class:`miio.airconditioningcompanion`)
 -  Xiaomi Mi Air Purifier (:class:`miio.airpurifier`)
 -  Xiaomi Aqara Camera (:class:`miia.aqaracamera`)
@@ -24,10 +24,10 @@ Supported devices
 -  Xiaomi Philips Zhirui Smart LED Bulb E14 Candle Lamp (:class:`miio.philips_bulb`)
 -  Xiaomi Philips Zhirui Bedroom Smart Lamp (:class:`miio.philips_moonlight`)
 -  Xiaomi Universal IR Remote Controller (Chuangmi IR) (:class:`miio.chuangmi_ir`)
--  Xiaomi Mi Smart Pedestal Fan V2, V3, SA1, ZA1, ZA3, ZA4 (:class:`miio.fan`)
--  Xiaomi Mi Air Humidifier (:class:`miio.airhumidifier`)
+-  Xiaomi Mi Smart Pedestal Fan V2, V3, SA1, ZA1, ZA3, ZA4, P5 (:class:`miio.fan`)
+-  Xiaomi Mi Air Humidifier V1, CA1, CB1 (:class:`miio.airhumidifier`)
 -  Xiaomi Mi Water Purifier (Basic support: Turn on & off) (:class:`miio.waterpurifier`)
--  Xiaomi PM2.5 Air Quality Monitor (:class:`miio.airqualitymonitor`)
+-  Xiaomi PM2.5 Air Quality Monitor V1, B1, S1 (:class:`miio.airqualitymonitor`)
 -  Xiaomi Smart WiFi Speaker (:class:`miio.wifispeaker`)
 -  Xiaomi Mi WiFi Repeater 2 (:class:`miio.wifirepeater`)
 -  Xiaomi Mi Smart Rice Cooker (:class:`miio.cooker`)
diff --git a/miio/airdehumidifier.py b/miio/airdehumidifier.py
index fd22c0270..2764d6479 100755
--- a/miio/airdehumidifier.py
+++ b/miio/airdehumidifier.py
@@ -126,7 +126,7 @@ def fan_speed(self) -> Optional[FanSpeed]:
     @property
     def tank_full(self) -> bool:
         """The remaining amount of water in percent."""
-        return self.data["tank_full"]
+        return self.data["tank_full"] == "on"
 
     @property
     def compressor_status(self) -> bool:
diff --git a/miio/airqualitymonitor.py b/miio/airqualitymonitor.py
index 85439f521..0a1df6566 100644
--- a/miio/airqualitymonitor.py
+++ b/miio/airqualitymonitor.py
@@ -1,5 +1,6 @@
 import logging
 from collections import defaultdict
+from typing import Optional
 
 import click
 
@@ -54,9 +55,11 @@ def __init__(self, data):
         self.data = data
 
     @property
-    def power(self) -> str:
+    def power(self) -> Optional[str]:
         """Current power state."""
-        return self.data["power"]
+        if "power" in self.data and self.data["power"] is not None:
+            return self.data["power"]
+        return None
 
     @property
     def is_on(self) -> bool:
@@ -64,14 +67,18 @@ def is_on(self) -> bool:
         return self.power == "on"
 
     @property
-    def usb_power(self) -> bool:
+    def usb_power(self) -> Optional[bool]:
         """Return True if the device's usb is on."""
-        return self.data["usb_state"] == "on"
+        if "usb_state" in self.data and self.data["usb_state"] is not None:
+            return self.data["usb_state"] == "on"
+        return None
 
     @property
-    def aqi(self) -> int:
+    def aqi(self) -> Optional[int]:
         """Air quality index value. (0...600)."""
-        return self.data["aqi"]
+        if "aqi" in self.data and self.data["aqi"] is not None:
+            return self.data["aqi"]
+        return None
 
     @property
     def battery(self) -> int:
@@ -79,54 +86,74 @@ def battery(self) -> int:
         return self.data["battery"]
 
     @property
-    def display_clock(self) -> bool:
+    def display_clock(self) -> Optional[bool]:
         """Display a clock instead the AQI."""
-        return self.data["time_state"] == "on"
+        if "time_state" in self.data and self.data["time_state"] is not None:
+            return self.data["time_state"] == "on"
+        return None
 
     @property
-    def night_mode(self) -> bool:
+    def night_mode(self) -> Optional[bool]:
         """Return True if the night mode is on."""
-        return self.data["night_state"] == "on"
+        if "night_state" in self.data and self.data["night_state"] is not None:
+            return self.data["night_state"] == "on"
+        return None
 
     @property
-    def night_time_begin(self) -> str:
+    def night_time_begin(self) -> Optional[str]:
         """Return the begin of the night time."""
-        return self.data["night_beg_time"]
+        if "night_beg_time" in self.data and self.data["night_beg_time"] is not None:
+            return self.data["night_beg_time"]
+        return None
 
     @property
-    def night_time_end(self) -> str:
+    def night_time_end(self) -> Optional[str]:
         """Return the end of the night time."""
-        return self.data["night_end_time"]
+        if "night_end_time" in self.data and self.data["night_end_time"] is not None:
+            return self.data["night_end_time"]
+        return None
 
     @property
-    def sensor_state(self) -> str:
+    def sensor_state(self) -> Optional[str]:
         """Sensor state."""
-        return self.data["sensor_state"]
+        if "sensor_state" in self.data and self.data["sensor_state"] is not None:
+            return self.data["sensor_state"]
+        return None
 
     @property
-    def co2(self) -> int:
+    def co2(self) -> Optional[int]:
         """Return co2 value (400...9999)ppm for MODEL_AIRQUALITYMONITOR_S1."""
-        return self.data["co2"]
+        if "co2" in self.data and self.data["co2"] is not None:
+            return self.data["co2"]
+        return None
 
     @property
-    def humidity(self) -> float:
+    def humidity(self) -> Optional[float]:
         """Return humidity value (0...100)% for MODEL_AIRQUALITYMONITOR_S1."""
-        return self.data["humidity"]
+        if "humidity" in self.data and self.data["humidity"] is not None:
+            return self.data["humidity"]
+        return None
 
     @property
-    def pm25(self) -> float:
+    def pm25(self) -> Optional[float]:
         """Return pm2.5 value (0...999)μg/m³ for MODEL_AIRQUALITYMONITOR_S1."""
-        return self.data["pm25"]
+        if "pm25" in self.data and self.data["pm25"] is not None:
+            return self.data["pm25"]
+        return None
 
     @property
-    def temperature(self) -> float:
+    def temperature(self) -> Optional[float]:
         """Return temperature value (-10...50)°C for MODEL_AIRQUALITYMONITOR_S1."""
-        return self.data["temperature"]
+        if "temperature" in self.data and self.data["temperature"] is not None:
+            return self.data["temperature"]
+        return None
 
     @property
-    def tvoc(self) -> int:
+    def tvoc(self) -> Optional[int]:
         """Return tvoc value for MODEL_AIRQUALITYMONITOR_S1."""
-        return self.data["tvoc"]
+        if "tvoc" in self.data and self.data["tvoc"] is not None:
+            return self.data["tvoc"]
+        return None
 
     def __repr__(self) -> str:
         s = "<AirQualityMonitorStatus power=%s, " \
diff --git a/miio/tests/test_airdehumidifier.py b/miio/tests/test_airdehumidifier.py
index 21bcbda01..5076ec21e 100644
--- a/miio/tests/test_airdehumidifier.py
+++ b/miio/tests/test_airdehumidifier.py
@@ -51,13 +51,13 @@ def __init__(self, *args, **kwargs):
 
         self.return_values = {
             'get_prop': self._get_state,
-            'set_power': lambda x: self._set_state("power", x),
+            'set_power': lambda x: self._set_state("on_off", x),
             'set_mode': lambda x: self._set_state("mode", x),
             'set_led': lambda x: self._set_state("led", x),
             'set_buzzer': lambda x: self._set_state("buzzer", x),
             'set_child_lock': lambda x: self._set_state("child_lock", x),
             'set_fan_speed': lambda x: self._set_state("fan_st", x),
-            'set_target_humidity': lambda x: self._set_state("auto", x),
+            'set_auto': lambda x: self._set_state("auto", x),
             'miIO.info': self._get_device_info,
         }
         super().__init__(args, kwargs)
@@ -107,7 +107,7 @@ def test_status(self):
         assert self.state().temperature == self.device.start_state["temp"]
         assert self.state().humidity == self.device.start_state["humidity"]
         assert self.state().mode == OperationMode(self.device.start_state["mode"])
-        assert self.state().led == self.device.start_state["led"]
+        assert self.state().led == (self.device.start_state["led"] == 'on')
         assert self.state().buzzer == (self.device.start_state["buzzer"] == 'on')
         assert self.state().child_lock == (self.device.start_state["child_lock"] == 'on')
         assert self.state().target_humidity == self.device.start_state["auto"]
@@ -158,12 +158,6 @@ def test_status_without_temperature(self):
 
         assert self.state().temperature is None
 
-    def test_status_without_led(self):
-        self.device._reset_state()
-        self.device.state["led"] = None
-
-        assert self.state().led_brightness is None
-
     def test_set_target_humidity(self):
         def target_humidity():
             return self.device.status().target_humidity
diff --git a/miio/tests/test_airqualitymonitor.py b/miio/tests/test_airqualitymonitor.py
index 328484b85..71f65a3dc 100644
--- a/miio/tests/test_airqualitymonitor.py
+++ b/miio/tests/test_airqualitymonitor.py
@@ -3,11 +3,13 @@
 import pytest
 
 from miio import AirQualityMonitor
-from miio.airqualitymonitor import AirQualityMonitorStatus, MODEL_AIRQUALITYMONITOR_V1
+from miio.airqualitymonitor import (AirQualityMonitorStatus,
+                                    MODEL_AIRQUALITYMONITOR_V1,
+                                    MODEL_AIRQUALITYMONITOR_S1)
 from .dummies import DummyDevice
 
 
-class DummyAirQualityMonitor(DummyDevice, AirQualityMonitor):
+class DummyAirQualityMonitorV1(DummyDevice, AirQualityMonitor):
     def __init__(self, *args, **kwargs):
         self.model = MODEL_AIRQUALITYMONITOR_V1
         self.state = {
@@ -31,13 +33,13 @@ def __init__(self, *args, **kwargs):
 
 
 @pytest.fixture(scope="class")
-def airqualitymonitor(request):
-    request.cls.device = DummyAirQualityMonitor()
+def airqualitymonitorv1(request):
+    request.cls.device = DummyAirQualityMonitorV1()
     # TODO add ability to test on a real device
 
 
-@pytest.mark.usefixtures("airqualitymonitor")
-class TestAirQualityMonitor(TestCase):
+@pytest.mark.usefixtures("airqualitymonitorv1")
+class TestAirQualityMonitorV1(TestCase):
     def is_on(self):
         return self.device.status().is_on
 
@@ -69,3 +71,52 @@ def test_status(self):
         assert self.state().usb_power is (self.device.start_state["usb_state"] == 'on')
         assert self.state().display_clock is (self.device.start_state["time_state"] == 'on')
         assert self.state().night_mode is (self.device.start_state["night_state"] == 'on')
+
+
+class DummyAirQualityMonitorS1(DummyDevice, AirQualityMonitor):
+    def __init__(self, *args, **kwargs):
+        self.model = MODEL_AIRQUALITYMONITOR_S1
+        self.state = {
+            'battery': 100,
+            'co2': 695,
+            'humidity': 62.1,
+            'pm25': 19.4,
+            'temperature': 27.4,
+            'tvoc': 254,
+        }
+        self.return_values = {
+            'get_prop': self._get_state,
+        }
+        super().__init__(args, kwargs)
+
+    def _get_state(self, props):
+        """Return wanted properties"""
+        return self.state
+
+
+@pytest.fixture(scope="class")
+def airqualitymonitors1(request):
+    request.cls.device = DummyAirQualityMonitorS1()
+    # TODO add ability to test on a real device
+
+
+@pytest.mark.usefixtures("airqualitymonitors1")
+class TestAirQualityMonitorS1(TestCase):
+    def state(self):
+        return self.device.status()
+
+    def test_status(self):
+        self.device._reset_state()
+
+        assert repr(self.state()) == repr(AirQualityMonitorStatus(self.device.start_state))
+
+        assert self.state().battery == self.device.start_state["battery"]
+        assert self.state().co2 == self.device.start_state["co2"]
+        assert self.state().humidity == self.device.start_state["humidity"]
+        assert self.state().pm25 == self.device.start_state["pm25"]
+        assert self.state().temperature == self.device.start_state["temperature"]
+        assert self.state().tvoc == self.device.start_state["tvoc"]
+        assert self.state().aqi is None
+        assert self.state().usb_power is None
+        assert self.state().display_clock is None
+        assert self.state().night_mode is None
diff --git a/miio/version.py b/miio/version.py
index b374fddf1..27a8c10f0 100644
--- a/miio/version.py
+++ b/miio/version.py
@@ -1,2 +1,2 @@
 # flake8: noqa
-__version__ = "0.4.5"
+__version__ = "0.4.6"