Avoid preventable catastrophes with La Crosse Alerts Mobile. With our sensors, you can remotely monitor temperature, humidity, and wetness/dryness of a precise location from your mobile device.

Receive your choice of email or text alerts when your sensor detects something is wrong. Set specific temperatures, humidity, or water levels that you would like to be alerted when reached.

Choose the location (ex. Basement) of your sensor and set an image for your specific location.

• LaCrosse Alerts Gateway
• LaCrosse Alerts Mobile Sensor
• LaCrosse Alerts Mobile App
• High-Speed Internet

• Living Space Monitoring
• Frozen Pipe Prevention
• Leaky Roof Detection
• Hot Tub Temperature Monitoring
• Sauna Conditions
• Water Leaks Detection
• Humidity-Induced Mold Detection
• Sump Pump Failure Detection
• Weather Conditions

Follow directions on the app screen in order to add your first Gateway and Sensor.

What’s New

Version 2.0.42

-Issue with some weather stations not displaying data
-Device selection slider across the top
-Improved sensor default images
-Device List now in alphabetical order and can be optionally sorted
-Table view now includes an All tab for data
-Improved login process
-Bug fixes

Ratings and Reviews

2.8 out of 5
109 Ratings

109 Ratings

isJunky ,

Newest version is not so bad!

After a horrid August 2021 release obviously lacking thorough QA testing with the various weather stations, the developers have stepped up and fixed some of the most serious problems with the September release. I am revising my previous review.

[Do not update to August 2021 Version!!! . Weather station panel fails to display data on my iPhone-8]

Developer Response ,

Hi, Apologies for inconveniences you have had. We have fixed this issue and release is available now for the same. Kindly update the Lacrosse Mobile Alert App with the latest version 2.0.42 and confirm.

Jim??? ,

Doesn’t work!

Forced to upgrade now no temps given,no rain gauge shown no values indicated for anything? Worthless,would gladly go back. Received input that fix will be available soon! Until then this is just a chunk of plastic hanging on the wall. This was bought to monitor conditions at a remote site! Totally useless as is! If soon is longer than a week I am returning and going with another brand. Update! New version works perfectly. Back to original format? This station saved me major expenses when the furnace died and I was able to call repairman before house froze.

Developer Response ,

We really appreciate you for taking the time to update the review and confirm us. Thanks for the rating.

vecher1553 ,

All is good except a few things

The app has been working reliably fir the past several years. After the update the table that showed temperature and humidity on the same line was separated to two tables. The humidity is a relative value. In a separate table without the temperature it has little meaning. Now you can only study the chart to figure out what’s going on. Please get the temperature and humidity table back.

Developer Response ,

Thank you for your great review. We apologize for any inconvenience while using our app with the latest temperature and humidity table changes. We are continuing to work with this tool and others to improve the functionality of the tables. Please be on the look-out for app updates over the next several months with improvements based on your feedback. Thank you for your comments and helping us to improve the product.

App Privacy

The developer, La Crosse Technology, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Linked to You

The following data may be collected and linked to your identity:

  • Contact Info
  • Identifiers

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • User Content
  • Usage Data
  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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