Elertus Alerts ELRT10-2 Wireless Remote Wine Monitoring System Sends Alerts for Temperature and Humidity Remotely monitor your wine collection from your phone, tablet, and computer. Monitors temperature, humidity, movement, doors, and light. Customizable alerts sent through smartphone notifications, text message and email. Elertus App for iPhone and Android devices lets you monitor and customize your Elertus Sensor on the go. Battery powered and easily connects to your existing Wi-Fi network.