Coolo CS-201Z Soil Moisture Sensor #27830
Replies: 29 comments 37 replies
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I have 2 x CS-201Z and both have the same issue than you. Additionally the update of the Soil moisture happens only after several hours. Interval is set to 30 seconds. Update of temperature is working fine. |
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I have the same problem, only temperature seems to work. Humidity shows very high values, moisture shows 0 and battery shows 100 even with rechargable batteries that are not topped up. |
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@13717033460 something seems to be wrong with the integration, could you check this? |
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same here |
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I experience the same issues. Especially moisture is not updating, only when the button on device is pressed. This also happens if the change of moisture is significantly larger than 5%. |
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My log is full of error from these
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"Users need reliable updates on a fixed schedule, regardless of moisture change. well, I beg to differ. I can see, how this makes debugging a faulty sensor more difficult, but that's not normal operation. |
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I‘m sorry, I was confused. I doubt that this device is updateable via ota. |
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Newbie question: how do I update the firmware? I don't see OTA support for this device. Thanks in advance. |
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@13717033460 can you please explain us, how to update the firmware? |
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@13717033460 any update on the fix? |
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@13717033460 any update on the fix? |
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Is there any information on how to update the fimware, thanks 🔢 |
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I would also like to know! |
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Some more observations that don't align with what @13717033460 was suggesting. This one hyper-active sensor is checking in several times a minute, all with the same values. These broadcasts are 1, then 10 seconds apart, with identical values for moisture / temperature: |
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Any news about How to upgrade the Firmware. Upload moisture sample once per hour is the good approach. |
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@Koenkk Is it possible to exclude temporarely the device from the supported list? Till the issue is solve… This morning, need to press the physical button to get upload datas in Z2M…. |
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I have 3 of these devices since a few weeks, Firmware Date is 20250709. It seems for me they do work fine. The value of soil_moisture is broadcasted immediatly when I water my plants. I only worry about water resistance of these devices when used outdoors. |
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Does anyone know how to update? I received three new ones, and they work much better. |
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Worked for a while and then stopped reporting any change of moisture :/ |
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Is anything happening here? |
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I just bought one and Soil Humidity just does not report at all - The device appears with firmware 0126082025, is that right? No ZigBee2MQTT Ota update avail. Setting Soil Humidity calibration to max of 30 will make the Soil Humidity to be 30% - is the issue with the device or with the HA/Z2MQTT Integration?? |
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There is no moisture data even when it's placed in water, and no data appears when the button is pressed once. Then it must be broken.
发自我的iPhone
…------------------ Original ------------------
From: ZeRoY ***@***.***>
Date: Mon,Nov 10,2025 8:27 PM
To: Koenkk/zigbee2mqtt ***@***.***>
Cc: jomders ***@***.***>, Mention ***@***.***>
Subject: Re: [Koenkk/zigbee2mqtt] Coolo CS-201Z Soil Moisture Sensor(Discussion #27830)
I just bought one and Soil Humidity just does not report at all - The device appears with firmware 0126082025, is that right? No ZigBee2MQTT Ota update avail. Setting Soil Humidity calibration to max of 30 will make the Soil Humidity to be 30% - is the issue with the device or with the HA/Z2MQTT Integration??
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The maximum water content is 100%, there will be no 171%.
发自我的iPhone
…------------------ Original ------------------
From: ZeRoY ***@***.***>
Date: Mon,Nov 10,2025 8:55 PM
To: Koenkk/zigbee2mqtt ***@***.***>
Cc: jomders ***@***.***>, Mention ***@***.***>
Subject: Re: [Koenkk/zigbee2mqtt] Coolo CS-201Z Soil Moisture Sensor(Discussion #27830)
After putting the device in a glass of water the Soil Humidity shot up to 171% - Took it out, dried it and placed into soil, I now get 100% - which seems to be valid as the soil is quite wet. The Alert for dry however is activated and shouldnt as it is set to 20% Soil moisture? Anyway to update firmware then? Last question I do not see a "button" to press?
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This is the latest version, there is no problem with the firmware.
发自我的iPhone
…------------------ Original ------------------
From: doenermann ***@***.***>
Date: Mon,Nov 10,2025 9:07 PM
To: Koenkk/zigbee2mqtt ***@***.***>
Cc: jomders ***@***.***>, Mention ***@***.***>
Subject: Re: [Koenkk/zigbee2mqtt] Coolo CS-201Z Soil Moisture Sensor(Discussion #27830)
What about the older devices which stop reporting soil humidity after a couple hours/days completely? Will there be an update or are they wasted money and garbage now?
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@13717033460 |
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@13717033460 |
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This sensor is working only partially.
The water_warning entity is always reported as NULL
Does anybody have this working properly?
I have other sensors with ZG-303Z that look identical from the outside working correctly.
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