Mailbox Alert with Text Message and Email Notifications (External)

Wireless alert at over 250 feet; 2.4GHz WiFi required Email and text message notification when you get mail. Each device can send alerts to one phone number and up to five email addresses. All or some of the email addresses can also be used to receive text notifications. Easy installation and configuration: you choose when the alert is active. Uses 3 AAA batteries, included. Recommended installation: vertical with sensor wire coming out from the slot at the bottom to avoid potential water and ice damage. Best in class technical support.