diff --git a/Commands.md b/Commands.md
index 92b2b0e2..6904420d 100644
--- a/Commands.md
+++ b/Commands.md
@@ -270,6 +270,7 @@ Action			|	`0` = turn output OFF<BR> `1` = turn output ON<BR>`2` = TOGGLE output
 <a id="PressRes">	</a>	PressRes	|	Pressure sensor resolution<BR>`0..3` = maximum number of decimal points
 <a id="Sensor13">	</a>	Sensor13	|	[INA219](http://www.ti.com/product/INA219) low voltage current sensor calibration mode<BR>`0` = set INA219 calibration to max 32V and 2A<BR>`1` = set INA219 calibration to max 32V and 1A<BR>`2` = set INA219 calibration to max 16V and 0.4A
 <a id="Sensor15">	</a>	Sensor15	|	[Automatic Baseline Correction](https://github.com/arendst/Sonoff-Tasmota/blob/c97ea4d9176eb7e87abff5f963a0f1c60f0a5e52/sonoff/xsns_15_mhz19.ino#L47) for [MH-Z19B](MH-Z19B) CO<sub>2</sub> sensor<BR>`0` = disabled<BR>`1` = enabled *(default)*<BR>`2` = disable and start manual calibration from 400 ppm of CO<sub>2</sub><BR>`9` = reset sensor to factory defaults<BR>`1000` = sets measurement range to 1000ppm CO<sub>2</sub><BR>`2000` = sets measurement range to 2000ppm CO<sub>2</sub><BR>`3000` = sets measurement range to 3000ppm CO<sub>2</sub><BR>`5000` = sets measurement range to 5000ppm CO<sub>2</sub>
+<a id="Sensor20">	</a>	Sensor20	|	[Nova Fitness SDS011](Wemos-D1-Mini-and-Nova-Fitness-SDS011-Laser-Dust-Sensor) dust sensor. *Introduced in 6.5.0.3*<BR>`1..255` = change working period in minutes
 <a id="Sensor27">	</a>	Sensor27	|	[APDS-9960](APDS-9960) sensor commands<BR>`0` = enable light level and proximity sensor / disable gestures *(default)* <BR> `1` = enable gesture mode/ disable light level and proximity sensor<BR> `2` = enable gestures with half gain / disable light and proximity sensor<BR>`3..255` = Set [ATIME register](APDS-9960#known-issues) for different integration times
 <a id="Sensor34">	</a>	Sensor34	|	[HX711 load cell](https://github.com/bogde/HX711) sensor calibration<BR>`1` = reset display to 0<BR>`2` = start calibration<BR>`2 <value>` = set reference weight in grams and start calibration<BR>`3` = show reference weight in grams<BR>`3 <value>` = set reference weight in grams<BR>`4` = show calibrated scale value<BR>`4 <value>` = set calibrated scale value<BR>`5` = show max weigth in gram<BR>`5 <value>` = set max weight in grams<BR>`6` = show item weigth in decigram<BR>`6 <value>` = set item weight in decigrams<BR>
 <a id="TempRes">	</a>	TempRes	|	Temperature sensor resolution<BR>`0..3` = maximum number of decimal points