Reply To: Parameter Threshold Notifications

You can do this remotely if you send data to ThingSpeak (already supported by ModularSensors). There are caps on how many ThingSpeak channels you can have and still have it be free (4 per account, I think), but you can make a ThingSpeak channel email or tweet at you when it meets certain conditions. Here’s a similar question about alarms from the Mayfly: https://www.envirodiy.org/topic/programming-mayfly-to-send-alerts/

Emailing from ThingSpeak involves using an IFTTT applet and some built-in ThingSpeak apps: https://www.mathworks.com/help/thingspeak/analyze-channel-data-to-send-email-notification-from-ifttt.html

Tweeting functionality is built in to ThingSpeak: https://thingspeak.com/apps