Ambient Weather WH31SM Soil Moisture Sensor for WS-2000, WS-5000 Weather Stations

Works GREAT until you run over it with the lawnmower. Then it doesn't work so well. Did this twice with two different sensors. Needs a feature that connects better with my brain to not run over it, twice.

This sensor was easy to add to my system. The test the instructions recommended showed the calibration was correct out of the box. I have no way to confirm its accuracy in the ground, but the readings seem reasonable. In any case, I believe it will help me determine how often I should water my avocados!

My unit works great, right out of the box. The base unit recognized the new sensor immediately and the calibration appears to be accurate, right out of the box. (I compared the reading to an old soil moisture meter I had lying around the house)

Funciona bien, es necesario calibrar.

Really like my WS-2000 weather station. I have four add-on temperature sensors for various rooms including garage and basement. All Great - use the Ambient Weather app to keep track of the house when I am away. Thought moisture sensors would be a great addition to guide the use of my wifi enable irrigation controller. I purchased two WH31SM - Wish I had read the reviews first. First one passed the calibration test but was VERY slow to respond to change from dry to wet (water emersion). It then took three days to return to a more normal dry reading when removed from the water. The second one failed the initial calibration (water emersion) test never getting above 40% after repeated dry-wet cycles Very disappointed and will return. I really wanted them to work!

I use this out in our landscape area near our pond area and it gives me a fairly accurate measurement of the soil moisture to allow me to adjust my automatic watering system.

I have been enjoying my WS-2000 weather station for several years and love being able to get real-time data happening right in my own backyard. I recently discovered the soil sensors available as an accessory. This has been an great addition to my weather station and lets me monitor my vegetable garden and newly planted tree right from my kitchen to be sure both are being adequately watered. You can even set up text alerts to notify when levels drop to specified parameters.

!st Sensor delivered did not work. Before calibration, the instruction say (after installing the batteries and connecting to WS2000) to let the unit sit at room temperature. The reading should read 0% which it did. The next step was to immerse the probe into a glass of water and within an hour, it should read about 90% moist (one would hope so). Mine never got above 6% after 2 hours. I returned it and Amazon had a replacement the next day. This one worked fine. I had contacted Ambient support but before they got back to me I had returned to Amazon for a replacement. However, support was responsive to my issue and the fix was pretty simple. So kudos to them on the support.